> U.S. DEPARTMENT OF THE INTERIOR TO ACCOMPANY MAP MF-2329
>
> U.S. GEOLOGICAL SURVEY
>
> **MAP SHOWING INVENTORY AND REGIONAL SUSCEPTIBILITY FOR HOLOCENE
> DEBRIS FLOWS AND RELATED FAST-MOVING LANDSLIDES IN THE CONTERMINOUS
> UNITED STATES**
>
> **By Earl E. Brabb, Joseph P. Colgan, and Timothy C. Best**
>
> **INTRODUCTION**
>
> Debris flows, debris avalanches, mud flows, and lahars are fast-moving
> landslides that occur in a wide variety of environments throughout the
> world. They are particularly dangerous to life and property because
> they move quickly, destroy objects in their paths, and can strike with
> little warning. U.S. Geological Survey scientists are assessing
> debris-flow hazards and developing real-time techniques for monitoring
> hazardous areas so that road closures, evacuations, or corrective
> actions can be taken (Highland and others, 1997).
>
> According to the classifications of Varnes (1978) and Cruden and
> Varnes (1996), a debris flow is a type of slope movement that contains
> a significant proportion of particles larger than 2 mm and that
> resembles a viscous fluid. Debris avalanches are extremely rapid, tend
> to be large, and often occur on open slopes rather than down channels.
> A lahar is a debris flow from a volcano. A mudflow is a flowing mass
> of predominantly fine-grained material that possesses a high degree of
> fluidity (Jackson, 1997). In the interest of brevity, the term
> \"debris flow\" will be used in this report for all of the rapid slope
> movements described above.
>
> **WHAT CAUSES DEBRIS FLOWS?**
>
> Debris flows in the Appalachian Mountains are often triggered by
> hurricanes, which dump large amounts of rain on the ground in a short
> period of time, such as the November 1977 storm in North Carolina
> (Neary and Swift, 1987) and Hurricane Camille in Virginia (Williams
> and Guy, 1973). Both of these storms caused large numbers of debris
> flows and extensive damage. High-intensity rainfall is also a common
> trigger for debris flows in the Coast Ranges from California to
> Washington, such as the 1982 storm in the San Francisco Bay region,
> which triggered 18,000 debris flows, killed 25 people, and caused at
> least \$65,000,000 in damages (Ellen and Wieczorek, 1988). Debris
> flows in arid and semi-arid regions of the American West seem to be
> caused primarily by locally intense storms between the months of June
> and October. Examples include flows along the Colorado River and its
> tributaries (Webb and others, 1989), flows in central Utah (Baum and
> Fleming, 1989), and those in other desert areas of Utah, Arizona,
> Nevada, Oregon, and California (Blackwelder, 1928). Rapid snowmelt was
> the main trigger for the 1983 debris flows in Utah (Brabb and others,
> 1989b). Earthquakes and volcanic eruptions commonly trigger debris
> avalanches, which can also be initiated by heavy or prolonged
> rainfall.
>
> Some of the lahars triggered by the 1980 eruption of Mount St. Helens
> were generated when snow avalanches were rapidly melted and mixed with
> pyroclastic material during the initial eruption. Other lahars formed
> more than four hours later when avalanche debris saturated with melted
> ice was set in motion by another eruption and harmonic tremors
> (Fairchild, 1987). These lahars extended as much as 22 km from their
> source on the volcano down the various forks of the Toutle River.
> Other volcanoes in Washington
>
> and California, such as Mt. Rainier (Crandell and Waldron, 1956) and
> Mount Shasta (Crandell and others, 1984), have runout distances in
> excess of 40 km.
>
> Fire can increase the danger of debris flows by accelerating surface
> erosion and causing water-repellent soils to develop on burned areas.
> These water-repellent soils can facilitate small debris flows during
> mild rainstorms or after very little rain has fallen, according to
> Wells (1987).
>
> **NEED FOR A DEBRIS FLOW MAP**
>
> A new responsibility to evaluate landslide hazards in the United
> States, combined with a statement by Radbruch-Hall and others (1982,
> p. 2) that debris flows in arid regions had not been included in their
> overview of landslides in the United States, led the first author to
> make a reconnaissance of landslide problems in all 50 states in the
> early 1980's. Conversations with state highway engineers and members
> of state geological surveys were supplemented by visits to landslides
> described by them and in published reports (compiled by Alger and
> Brabb, 1985) and to other areas where landslides could be expected.
> Debris flows and other landslides visited were plotted on topographic
> maps, mostly at 1:500,000 scale. The results of this investigation
> (Brabb, 1989) constituted the first comprehensive report to give a
> state-by-state analysis of landslide problems in the United States and
> different ways to evaluate the impact of those problems on each state.
> This was in contrast to the Radbruch-Hall report, which discussed the
> spatial occurrence of landsliding within physiographic provinces. A
> slope map in the 1989 report showed mountainous areas where landslides
> had occurred or could be expected, but debris flows were not described
> separately. The purpose of the present map, therefore, is to show
> where debris flows have occurred in the United States and where these
> slope movements might be expected in the future.
>
> **PREPARATION OF THIS MAP**
>
> In 1984, Best and Brabb prepared an inventory of past debris flows
> using data from the reconnaissance field investigations and a list of
> published and unpublished reports, a list which was eventually
> published by Alger and Brabb (1985). This information was plotted on
> 1:500,000-scale USGS state maps and transferred by hand to a
> 1:2,500,000-scale greenline base map of the United States. In 1997, A.
> Barron and M. Sinor digitized this greenline base map, but no new
> information was added to the map at that time.
>
> In 1998 and 1999, new information was added to bring the map
> up-to-date. The data were gathered from published and unpublished
> reports of debris flows primarily covering the years 1984-1999. Many
> older reports that had been overlooked in the original map were also
> included. In addition, all state geologists were contacted to find out
> if they had information on debris flows. Several state geologists and
> members of their staff provided significant new information.
>
> No distinction was made between debris flow scars, made shortly after
> the events, and debris flow deposits, which may be thousands of years
> old. We believe that all of the debris flows described in this report
> formed during the past 10,000 years (Holocene), but some of them could
> be older.
>
> Mudflows are included even though this term is widely misused by the
> media and others for debris flows and sediment-laden floods. See the
> discussion by Campbell and others (1989).
>
> If a report included a map at a scale larger than that of the
> compilation (1:2,500,000), the map or a photocopy was scanned. Other
> reports contained only the names of places where debris flows had
> occurred, or a map at a scale smaller than 1:2,500,000, or a map with
> no geographic coordinates. In those cases, the debris flows were
> located approximately on the appropriate 1:500,000-scale USGS state
> map or a 1:100,000-scale USGS topographic map and plotted by hand on a
> Mylar overlay. This overlay was then scanned. Details of the scanning
> process and a description of other database techniques and data are
> provided in Appendix 1.
>
> The inventory map shows the locations of debris flows in two different
> ways, as points representing the locations of individual flows or
> small groups of flows, and as areas or polygons containing one or more
> debris flows. Different symbols are used to indicate uncertainty in
> location or the identification of the feature as a debris flow. In the
> digital database, a reference number ties each point and polygon on
> the map to the bibliography for each state, but these numbers are
> omitted from the published map for clarity. In those places where
> detailed debris-flow mapping was available in digital form, such as
> New Mexico and Utah, we plotted individual flows to illustrate their
> number and extent. In the San Francisco Bay area
>
> (Ellen and Wieczorek, 1988), we used a polygon because the 18,000
> debris flows would plot as a large red blob.
>
> Many of the other polygons represent areas in which less than fifty
> debris flows have been recognized or in areas where authors of reports
> have not provided sufficient information to locate the flows.
> Rectangular boxes represent 7.5-minute quadrangles where one to
> several hundred debris flows have been mapped at 1: 24,000 scale. Most
> of these quadrangles are in Appalachian states and in California.
>
> Only New Mexico has a systematic inventory of debris flows (Cardinali
> and others, 1990) for the entire state. The comparison of New Mexico
> with surrounding states having a similar climate and similar steep
> slopes suggests that most of the mountainous states have not been
> adequately mapped and that debris flows are far more common than
> depicted. This idea is reinforced by the large number of debris flows
> recorded in specific storms in Utah (Brabb and others, 1989b),
> California (Ellen and Wieczorek, 1988), and Virginia (Morgan and
> others, 1999).
>
> **SUSCEPTIBILITY**
>
> The incompleteness of the inventory of debris flows makes educating
> decision-makers and the public about the extent of debris-flow hazard
> in the United States difficult. Fortunately, Clark (1987) and
> Corominas and others (1996) have compiled information on the slope
> angles of debris-flow source areas, indicating that debris flows
> initiate mainly on slopes steeper than 25 degrees. Therefore, a map
> showing slopes greater than 25 degrees would be expected to show most
> debris-flow source areas in the United States.
>
> A Digital Elevation Model (DEM) released by the National Oceanic and
> Atmospheric Administration (NOAA) provides convenient nationwide data
> for the preparation of a slope map. The database consists of
> ground-surface elevations at 30 arc-second (approximately 1 km by 1
> km) grid cells. Apparently these data were derived from the Army Map
> Service 1:250,000 topographic maps. Several slope maps were prepared
> from this database using ARC/INFO, a commercial GIS software program.
> To calculate the slope at each one-kilometer grid cell, the process
> fits a quadratic surface to the elevation values of a 3 cell by 3 cell
> box surrounding the grid cell for which the slope is to be calculated.
> The slope assigned to the middle cell is the maximum slope of the
> quadratic surface at that point.
>
> Brabb and others (1989b) have discussed several problems with the
> database. One of these concerns the average value for the slope over a
> 9-km-square area. This figure is generally much flatter than the
> actual value for slopes within the selected area. Map values of one or
> two degrees may correspond to slopes steeper than the 25- degree value
> targeted for the susceptibility map. Because of this discrepancy, the
> map is referred to as a slope index map, giving relative slope rather
> than actual slope in any specific area.
>
> Several slope index maps were prepared to try to find slopes steeper
> than 25 degrees where debris flows might be expected in the future.
> The maps were adjusted by trial and error to incorporate the largest
> number of debris-flow points without including large, gently sloping
> areas where no debris flows are expected. We eventually adopted a map
> with a slope index steeper than 3 percent, which includes about 75
> percent of the debris flows mapped. Only individual debris-flow
> locations were used to compute the percentage of debris flows in each
> slope category, because the locations of debris flows within the
> polygon areas are too uncertain for this purpose. The other debris
> flows may occur in areas where more gentle average slopes contain
> steep slopes of limited extent, such as cliffs along rivers and lakes
> that are too small to be detected in the one-kilometer grid cell.
> Alternatively, some features mapped as debris flows may not be debris
> flows.
>
> **SPATIAL RESOLUTION AND POTENTIAL MISUSE OF MAP INFORMATION**
>
> Users of this digital map should not violate the spatial resolution of
> the data. Although the digital form of the data removes the constraint
> imposed by the scale of a paper map, the detail and accuracy
>
> inherent in map scale are also present in the digital data. The fact
> that this database was edited at a scale of 1:2,500,000 means that
> higher resolution information is not present in the data. Plotting at
> scales larger than 1:2,500,000 will not yield greater real detail, and
> it may reveal fine-scale irregularities below the intended resolution
> of the database. Similarly, where this database is used in combination
> with other data of higher resolution, the resolution of the combined
> output will be limited by the lower resolution of these data.
>
> Users are also warned that gently sloping or even flat areas adjacent
> to steeper slopes where debris flows may occur are not necessarily
> safe. Debris flows may extend several kilometers from the mountains
> out into the flat areas.
>
> **CONCLUSIONS**
>
> This map provides a preliminary overview of debris flows and
> debris-flow susceptibility in the conterminous United States. It is
> not intended for hazard evaluation or other site-specific work, and
> should not be used for such. It can be used to determine where debris
> flow processes may be a problem and where additional information and
> investigation are warranted.
>
> Twenty-eight of the forty-eight conterminous United States have
> documented debris flows. They are most abundant in the Coast Ranges,
> Rocky Mountains, and Appalachian Mountains but occur in other places
> where slopes are steep, including bluffs along rivers and the slopes
> beneath mesas and other escarpments. Moreover, gently sloping or flat
> areas adjacent to these steep slopes are also at risk. Debris flows
> are rare or absent on the plains and gently rolling hills of Middle
> America. In California, Utah, and the Southern Appalachians, debris
> flows are a common hazard that kills people and causes extensive
> property damage. References and map locations in the digital database
> provide a foundation for understanding the extent of the debris flow
> hazard, but much more systematic mapping of debris flows in every
> vulnerable state is needed before the full extent of the problem can
> be determined.
>
> **ACKNOWLEDGEMENTS**
>
> We are grateful to several state geologists and members of their staff
> who kindly reviewed a preliminary copy of the map and the bibliography
> and provided new information. We are particularly grateful to M. Lee
> Allison, State Geologist for Utah, and members of his staff who
> contributed a digital database of debris flow locations for Utah. We
> also wish to thank Stephen Ellen, Russell Campbell, Gerald Wieczorek,
> Carl Wentworth, and David Howell for their reviews and help during
> various phases of the work. Charles Powell, II, kindly scanned and
> edited a draft of the bibliography. This project was supported in part
> by an appointment to the U.S. Geological Survey Earth Science
> Internship Program administered by Oak Ridge Associated Universities.
>
> **TRADE, PRODUCT, OR FIRM NAMES**
>
> The use of trade, product, or firm names is for descriptive purposes
> only and does not imply endorsement by the U.S. Government.
>
> **REFERENCES CITED**
>
> Alger, C.S., and Brabb, E.E., 1985, Bibliography of United States
> landslide maps and reports: U.S. Geological Survey Open-File Report
> 85-585,119 p.
>
> Baum, R.L., and Fleming, R.W., 1989, Landslides and debris flows in
> Ephraim Canyon, Central Utah: U.S. Geological Survey Bulletin 1842.
>
> Blackwelder, E., 1928, Mudflow as a geologic agent in semi-arid
> mountains: Geological Society of America Bulletin, v. 39, p. 465-484.
>
> Brabb, E.E., 1989, Landslides; Extent and economic significance in the
> United States, *in* Brabb, E.E. and Harrod, B.L., eds., Landslides:
> Extent and economic significance: International Geological Congress,
> 28th,Washington, 1989, Proceedings: Rotterdam, Balkema, p. 25-50.
>
> Brabb, E.E., Guzzetti, Fausto, Mark, Robert, and Simpson, R.W. Jr.,
> 1989a, The extent of landsliding in northern New Mexico and similar
> semi-arid and arid regions: Inland Geological Society, v. 2, p.
> 163-173.
>
> Brabb, E.E., Wieczorek, G.F., and Harp, E.L., 1989b, Map showing 1983
> landslides in Utah: U.S. Geological Survey Miscellaneous Field Studies
> Map MF-2085, scale 1:500,000.
>
> Campbell, R.H., Fleming, R.W., Prior, D.B., Nichols, D.J., Varnes,
> D.J., Hampton, M.A., Sangrey, D.A., and Brabb, E.E., 1989, Landslide
> classification for identification of mud flows and other landslides,
> *in* Sadler, P.M., and others, eds., Landslides in a semi-arid
> environment with emphasis on the inland valleys of Southern
> California: Publications of the Inland Geological Society, p. 1-27.
>
> Cardinali, Mauro, Guzzetti, Fausto, and Brabb, E.E., 1990, Preliminary
> maps showing landslide deposits and selected features in New Mexico:
> U.S. Geological Survey Open-File Report 90-293, scale 1:500,000.
>
> Clark, G.M., 1987, Debris slide and debris flow events in the
> Appalachians south of the glacial border, *in* Costa, J.E., and
> Wieczorek, G.F. eds., Debris flows/avalanches: process, recognition,
> and mitigation: Geological Society of America Reviews in Engineering
> Geology, v. 7, p. 125-138.
>
> Corominas, J., and others, 1996, Debris flow, *in* Dikau, Richard, and
> others, eds., Landslide recognition: John Wiley and Sons, New York, p.
> 161-180.
>
> Crandell, D.R., and Waldron, H.H., 1956, A recent volcanic mudflow of
> exceptional dimensions from Mt. Rainier, Washington: American Journal
> of Science, v. 254, p. 349-362.
>
> Crandell, D.R., and others, 1984, Catastrophic debris avalanche from
> ancestral Mount Shasta volcano, California: Geology, v. 12, p.
> 143-146.
>
> Cruden, D.M., and Varnes, D.J., 1996, Landslide types and processes,
> *in* Turner, A.K., and Schuster, R.L. eds., Landslides, investigation
> and mitigation: Transportation Research Board, National Research
> Council, Special Report 247, p. 36.
>
> Ellen, S.D., and Wieczorek, G.F., 1988, Landslides, floods and marine
> effects of the storm of January 3-5, 1982, in the San Francisco Bay
> region: U. S. Geological Survey Professional Paper 1434.
>
> Fairchild, L.H., 1987, The importance of lahar initiation processes,
> *in* Costa, J.E., and Wieczorek, G.F., eds., Debris flows/avalanches:
> processes, recognition, and mitigation: Geological Society of America
> Reviews in Engineering Geology, v. 7, p. 51-61.
>
> Highland, L.M., Ellen, S.D., Christian, S.B., and Brown, W.M., III,
> 1997, Debris-flow hazards in the United States: U.S. Geological Survey
> Fact Sheet 176-97.
>
> Jackson, J.A., ed., 1997, Glossary of Geology: American Geological
> Institute, Alexandria, VA.
>
> Morgan, B.A., Wieczorek, G.F., and Campbell, R.H., 1999, Map showing
> rainfall, debris flows, and flood effects of the June 27, 1995 storm
> in Madison County, Virginia: U.S. Geological Survey Geologic
> Investigations Map I-2623-A, scale 1:24,000.
>
> Neary, D.G., and Swift, L.W. Jr., 1987, Rainfall threshold for
> triggering a debris avalanching event in the southern Appalachian
> Mountains: Geological Society of America Reviews in Engineering
> Geology, v. 7, p. 81 -92.
>
> Radbruch-Hall, D.H., and others, 1982, Landslide overview map of the
> conterminous United States: U. S. Geological Survey Professional Paper
> 1183.
>
> Varnes, D.J., 1978, Slope movement and processes, *in* Schuster, R.L.,
> and Krijek, R.J. eds., Landslide analysis and control: National
> Academy of Sciences,Washington, D.C., p. 11-33.
>
> Webb, R.H., Pringle, P.T., Rink, G.R., 1989, Debris flows from
> tributaries of the Colorado River, Grand Canyon National Park,
> Arizona: U.S. Geological Survey Professional Paper 1492.
>
> Wells, W.G., II, 1987, The effects of fire on the generation of debris
> flows in southern California, *in* Costa, J.E., and Wieczorek, G.F.,
> eds., Debris flows/avalanches: processes, recognition, and mitigation:
> Geological Society of America Reviews in Engineering Geology, v. 7, p.
> 105-114.
>
> Williams, G.P., and Guy, H.P., 1973, Debris avalanches, a geomorphic
> hazard, *in* Coates, D. R., compiler, Environmental Geomorphology:
> Dowden, Hutchinson and Ross, Stroudsburg, PA, p. 25-46.
>
> U.S. DEPARTMENT OF THE INTERIOR TO ACCOMPANY MAP MF-2329
>
> U.S. GEOLOGICAL SURVEY
>
> **APPENDIX 1**
>
> **TECHNICAL DESCRIPTION OF THE DATABASE**
>
> SCANNING
>
> The scanning was done at 400 dpi on either a UMAX color flatbed
> scanner or a Contex FSC-8000dsp color scanner, depending on the size
> of the map or tracing. The scanned images were transformed from
> scanner coordinates to geographic coordinates in ARC/INFO with digital
> tics placed by hand. The scanned lines and/or points were edited
> interactively using ALACARTE (Wentworth and Fitzgibbon, 1991), and the
> database fields (tables 3, 4, and 5) were filled in as appropriate
>
> PROJECTION
>
> The digital map databases consist of ARC coverages and supporting INFO
> files, which are stored in a Lambert Azimuthal projection (table 1).
> Digital tics every 9 degrees of latitude and 20 degrees of longitude
> define a grid in the coverages. For more information about map
> projections, see Snyder (1987).
>
> **Table 1.** Map Projection Information
>
> Projection Lambert_Azimuthal
>
> Datum North American Datum of 1983 (NAD83)
>
> Units Meters
>
> Zunits None
>
> Xshift 0.0000000000
>
> Yshift 0.0000000000
>
> [Parameters]{.underline}
>
> 6370997.00000 Radius of the sphere of reference
>
> -100 0 0.000 Longitude of center of projection
>
> 45 0 0.000 Latitude at center of projection
>
> 0.00000 False easting (meters)
>
> 0.00000 False northing (meters)
>
> DATABASE FIELDS
>
> The content of the geologic database can be described in terms of the
> points and the areas that compose the map. Descriptions of the
> database fields in each table are explained in table 2.
>
> **Table 2.** Field Definition Terms in Tables
>
> Item Name Name of the database field (item)
>
> Width Maximum number of digits or characters stored
>
> Output Output width
>
> Type B-binary integer, F-binary floating-point number,\
> I-ASCII integer, C-ASCII character string
>
> NDP Number of decimal places maintained for floating-point numbers
>
> POINTS
>
> Data representing information at a single locality (points) are
> described in the point attribute table (table 3). The identities of
> the points from compilation sources are recorded in the REF and STATE
> fields. The STATE field indicates the state under which the source
> data for that point is referenced, and the REF field indicates the
> number of the reference for that point. Because several published
> sources of data can refer to the same geographic location, the REF
> field may contain multiple entries separated by commas. The subjective
> quality of the source data for a point is stored in the DFTYPE field
> (table 4).
>
> **Table 3.** Content of the Point Attribute Tables
>
> Item Name Width Output Type NDP Explanation
>
> AREA 4 12 F 3 Area of polygon in square meters
>
> PERIMETER 4 12 F 3 Length of perimeter in meters
>
> DFIPTSCMP# 4 5 B Unique internal control number
>
> DFIPTSCMP-ID 4 5 B Unique identification number
>
> STATE 2 2 C Two-letter state abbreviation
>
> REF 45 45 C Reference numbers
>
> DFTYPE 1 1 I Nature of point data (table 4)
>
> **Table 4.** Point Types Recorded in the DFTYPE field.
>
> 1\. Location of debris flows(s) and related fast-moving landslide(s)
>
> 2\. Approximate location of debris flow(s) and related fast-moving
> landslide(s)
>
> 3\. Identification as debris flow(s) ) and related fast-moving
> landslide(s) uncertain
>
> 4\. Approximate location, and uncertain identification as debris
> flow(s) and related fast-moving landslide(s)
>
> 5\. Location of debris flow(s) and related fast-moving landslide(s)
> specific only by county
>
> 6\. Identification as debris flow(s) and related fast-moving
> landslide(s) uncertain and specific only by county
>
> 7\. Location of debris flow(s) and related fast-moving landslide(s)
> from field investigations
>
> 8\. Approximate location and uncertain identification as debris
> flow(s) and related fast-moving landslide(s) from field investigations
>
> AREAS
>
> The identities of the areas from compilation sources are recorded in
> the REF and STATE fields. The STATE field indicates the state under
> which the source data for that area is referenced, and the REF field
> indicates the number of the reference for that area. Because several
> published sources of data can refer to the same geographic location,
> the REF field may contain multiple entries separated by commas.
> Because the location of individual debris flows is uncertain within
> the polygon boundary, the information in table 4 is not recorded in a
> DFTYPE field as it is for point data. Note that ARC/INFO coverages
> cannot contain both point and polygon information, so only coverages
> with polygon information will have a polygon attribute table, and
> those coverages will not have a point attribute table.
>
> **Table 5.** Content of the Polygon Attribute Tables
>
> Item Name Width Output Type NDP Explanation
>
> AREA 4 12 F 3 Area of polygon in square meters
>
> PERIMETER 4 12 F 3 Length of perimeter in meters
>
> DFIPTSCMP# 4 5 B Unique internal control number
>
> DFIPTSCMP-ID 4 5 B Unique identification number
>
> STATE 2 2 C Two-letter state abbreviation
>
> REF 45 45 C Reference numbers
>
> LINES
>
> The lines (arcs) are recorded as strings of vectors and are described
> in the arc attribute table (table 6). They define the boundaries of
> the areas containing debris flows.
>
> **Table 6.** Content of the Arc Attribute Tables
>
> Item Name Width Output Type NDP Explanation
>
> FNODE# 4 5 B Starting node of arc (from node)
>
> TNODE# 4 5 B Ending node of arc (to node)
>
> LPOLY# 4 5 B Polygon to the left of the arc
>
> RPOLY# 4 5 B Polygon to the right of the arc
>
> LENGTH 4 12 F 3 Length of arc in meters
>
> DFIPLYCOMP# 4 5 B Unique internal control number
>
> DFIPLYCOMP-ID 4 5 B Unique identification number
>
> SYMB 3 3 I Symbol number
>
> SEL 3 3 I Select number (1 or 0)
>
> SHADED RELIEF BASE MAP
>
> The shaded-relief base map was derived from NOAA digital elevation
> data for northern North America, available from:
> http://www.ngdc.noaa.gov:80/seg/fliers/se-1104.html. The altitude data
> were downloaded from the NOAA web site and imported into ARC/INFO by
> Andrew Barron in the manner described here: Using the .HDR file
> downloaded, an ARC-compatible .HDR file was created. The raw data was
> treated as a .BIL image, and IMAGEGRID was used to convert it. For an
> unknown reason, negative elevation values (for example, elevations at
> Death Valley in California) were a huge number. By experimenting, this
> number was determined to be:
>
> (LARGE_NUMBER) = 65,536 + (Negative Elevation)
>
> This is intrinsic to the 16 bit data source, 2 to the 16th power
> (2\^16) = 65,536.This problem was fixed by using the following GRID
> statement, where \<ingrid\> is the uncorrected elevation data and
> \<outgrid\> is the corrected data:
>
> \<outgrid\> = con(\<ingrid\> gt 4500,\<ingrid\> - 65536, \<ingrid\>)
>
> The \'gt 4500\' part is related to the maximum elevation in meters,
> listed as 4328 in the NOAA HDR file. After correcting the grid values,
> the elevation data was projected using the parameters in Table 1.
>
> The shaded-relief base map was made from the digital elevation model
> with the HILLSHADE command in ARC/INFO, using sun azimuth 315 degrees
> and altitude 45 degrees. The resulting grid was then processed to
> lighten the gray shades but preserve the topographic data, using the
> procedure described by Graham and Pike (1997). In the procedure
> described below, 'ltgrid' is the original shaded-relief, and
> 'final_grid' is the lightened version:
>
> Step 1:
>
> ltgrid = SLICE(usa-hs_val, EQINTERVAL, 100)
>
> Step 2: (use &describe on ltgrid before running this step)
>
> temp_grid = (ltgrid - \[value GRD\$MEAN\]) \* 15 / \[value
> GRD\$STDV\] + 90
>
> Step 3:
>
> final_grid = con(isnull(temp_grid), 99, temp_grid \<= 60, 60,temp_grid
> \<=
>
> 99, int(temp_grid),99)

SUSCEPTIBILITY MAP

> The debris-flow susceptibility areas and the shaded relief background
> were plotted together using the ARCPLOT command GRIDCOMPOSITE HSV
> (hue, saturation, and value) to make the base for the final map.
>
> **REFERENCES CITED**
>
> Graham, S.E., and Pike, R.J., 1997, San Francisco Bay Landslide Folio
> part B - Shaded relief map of the San Francisco Bay region,
> California: U.S. Geological Survey Open-File Report 97-745 B.
>
> Mark, R.K., 1992, Map of debris-flow probability, San Mateo County,
> California, U.S. Geological Survey Miscellaneous Investigations Map
> I-1257-M, scale 1:62,500.
>
> Snyder, J.P., 1987, Map projections -- a working manual: U.S.
> Geological Survey Professional Paper 1395.
>
> Wentworth, C.M., and Fitzgibbon, T.T., 1991, ALACARTE user manual
> (version 1.0): U.S. Geological Survey Open-File Report 91-587C.
>
> U.S. DEPARTMENT OF THE INTERIOR TO ACCOMPANY MAP MF-2329
>
> U.S. GEOLOGICAL SURVEY
>
> **APPENDIX 2**
>
> **BIBLIOGRAPHY OF DEBRIS FLOWS BY STATE**
>
> References listed below are the data sources for each landslide or
> group of landslides in each state. References for individual
> landslides are shown as points on the map and references for groups of
> landslides are shown as areas or quadrangles on the map. Each
> reference is provided with a number in the order the material was
> received. This reference number is also provided in the digital
> database so that the sources of data can be linked to the individual
> landslide or group of landslides. The numbers are not shown on the
> plot for the map because they would overwhelm the data in several
> areas. The numbers in parentheses and brackets following each
> reference indicate the number of points or polygons in the database
> for that reference and the actual reference number(s) in the database
> for that point or polygon. For example, reference number 27 for
> California is: \[6 PT (27), 1 PT (25,27,85)\]. This means that 7
> debris flow locations in the point database are from reference 27 and
> one is also mentioned in references 25 and 85.
>
> Nearly all the references are in the files of the U. S. Geological
> Survey Landslide Information Center in Golden, Colorado. The current
> curator of these files is Lynn Highland, P.O. Box 25046, MS 966,
> Lakewood, CO 80225, phone 303-273-8588. Email: highland@usgs.gov.
>
> **Alabama**
>
> 1\. Pomeroy, J.S., 1983, Relict debris flows in northeastern
> Pennsylvania: Northeastern Geology, v. 5, no. 1. \[1PT (1)\]
>
> **Arizona**
>
> 1\. Cooley, M.E., Aldridge, B.N., Euler, R.C., 1966, Effects of
> catastrophic flood of December 1966, North Rim area, eastern Grand
> Canyon, Arizona: U. S. Geological Survey Professional Paper 980, p.
> 43. \[7 PT (1), 1 PT (1,5)\]
>
> 3\. Hereford, R., Thompson, K.S., and Burke, K.J., 1997, Dating
> prehistoric debris fans, Colorado River, Grand Canyon National Park,
> Arizona, with implications for channel evolution and river
> navigability: U.S. Geological Survey Open-File Report 97-167. \[12 PT
> (3), 1 POLY (3)\]
>
> 2\. Moosburner, O., Glancy, P.A., 1978, Potential flood and debris
> hazards at Willow Beach, Lake Mead National Recreation area, Arizona:
> unpublished report. \[1 POLY, (2)\]
>
> 8\. Murphy, B.J., and Moore, R.T., 1980, Maps showing relative slope
> stability and relative erodibility, central Santa Cruz river valley,
> Tucson area, Arizona: U.S. Geological Survey Miscellaneous
> Investigations Series Map I-844-O, 2 map sheets, scale 1:125,000. \[6
> PT (8)\]
>
> 7\. Realmuto, V.J., 1985, Preliminary map of selected mass movement
> events in Arizona: Arizona Bureau of Geology and Mineral Technology
> (written commun.), 10 p. \[1 PT (7)\]
>
> 4\. Webb, R.H., Pringle, P.T., Reneau, P.T., and Rink, G.R., 1987,
> Monument Creek Debris flow, 1984-Implications for formation of rapids
> on the Colorado River in Grand Canyon National Park: Geology, v. 16,
> no. 1, p. 50-54. \[1 POLY (4)\]
>
> 5\. Webb, R.H., Pringle, P.T., and Rink, G.R., 1987, Debris flows from
> tributaries of the Colorado River, Grand Canyon National Park,
> Arizona: U.S. Geological Survey Open File Report 87-118. \[2 PT (5), 1
> PT (1,5)\]
>
> 6\. Wohl, E.E., and Peartree, P.A., 1991, Debris flows as geomorphic
> agents in the Huachuca Mountains of Southeastern Arizona:
> Geomorphology, v. 4, no. 3-4, p. 273-292. \[1 PT (6)\]
>
> **Arkansas**
>
> 1\. McFarland, J.D., 1992, Landslide features of Crowley\'s Ridge:
> Arkansas Geological Commission Information Circular 31, 30 p. \[2 POLY
> (1)\]
>
> **California**
>
> 2\. Applied Earth Sciences, Inc., no date, Landslide inventory maps
> for Six Rivers National Forest: unpublished report. \[1 PT (2)\]
>
> 219\. Barrows, A.G., 1986, Landslide hazards in the east half of the
> Val Verde quadrangle, Los Angeles County, California: California
> Division of Mines and Geology, Open-File Report 86-9LA (Landslide
> Hazard Identification Map No. 5), scale 1:24,000. \[1 POLY (160,
> 219)\]
>
> 136\. Bawcom, J.A., and Spittler, T.E., 1995, The Floodgate landslide
> failure due to the March 1995 storms, Navarro River, Mendocino County,
> California: California Division of Mines and Geology, unpublished memo
> to J. Teie, California Department of Forestry, October 30. \[1 PT
> (136)\]
>
> 137\. \_\_\_1997, Engineering geologic review of the Rancheria Creek
> landslide: California Division of Mines and Geology, unpublished memo
> to C.E., Anthony, California Department of Forestry, January 17. \[1
> PT (137)\]
>
> 134\. \_\_\_1997, Engineering review of two landslides in Jackson
> Demonstration State Forest: California Division of Mines and Geology,
> unpublished memo to C.E., Anthony, California Department of Forestry,
> February 2. \[1 PT (134)\]
>
> 4\. Beaty, C.B., 1959, Desert flooding and debris-flow deposition,
> California-Nevada \[abs.\]: Geological Society of America Bulletin, v.
> 70, no 12, pt. 2, p. 1774. \[1 POLY (4,5)\]
>
> 3\. \_\_\_1970, Age and estimated rate of accumulation of an alluvial
> fan, White Mountains, California: American Journal of Science, v. 268,
> no. 1, p. 50-77. \[1 PT (3)\]
>
> 5\. \_\_\_1974, Debris flows, alluvial fans, and a revitalized
> catastrophism: Zeitschrift fur Geomorphologie, Supplementband 21, p.
> 39-51. \[1 POLY (4,5)\]
>
> 7\. Bedrossian, T.L., 1978, Geology and slope stability in the Geysers
> geothermal resources area: California Geology, v. 31, no. 7, p.
> 151-159. \[1 PT (7)\]
>
> 141\. \_\_\_1995, Boulder Creek debris flow: California Division of
> Mines and Geology, unpublished memo to N. Carr-Gordon, County of Santa
> Cruz Office of Emergency Services. \[1 PT (141)\]
>
> 6\. Blackwelder, E., 1928, Mudflow as a geologic agent in semi-arid
> mountains: Geological Society of America Bulletin, v. 39, no. 2, p.
> 465-484. \[1 PT (6)\]
>
> 210\. Bortugno, E.J., 1987, Landslide hazards in Benicia-Vallejo area,
> Solano County, California: California Division of Mines and Geology,
> Open-File Report 86-17SF (Landslide Hazard Identification Map no. 8),
> scale 1:24,000. \[1 POLY (210), 1 POLY (128,210), 1 POLY
> (128,210,211)\]
>
> 119\. Brabb, E.E., Reconnaissance field investigations in California,
> 1982, 1983, 1984, 1985. \[4 PT (119)\]
>
> 10\. Campbell, R.H., 1969, Rapid debris flows in the central Santa
> Monica Mountains, California \[abs.\]: Association of Engineering
> Geologists, Annual Meeting, San Francisco, Program Abstracts, p.
> 20-21. \[1 PT (10)\]
>
> 11\. \_\_\_1974, Debris flows originating from soil slips during
> rainstorms in southern California: Quarterly Journal of Engineering
> Geology, v. 7, no. 4, p. 339-349. \[1 POLY (11,12), 1 POLY
> (11,12,154), 1 POLY (11,12,218), 1 POLY (11,12,217,218), 1 POLY
> (11,12,154,217,218)\]
>
> 12\. \_\_\_1975, Soil slips, debris flows, and rainstorms in the Santa
> Monica Mountains and vicinity, Southern California: U.S. Geological
> Survey Professional Paper 851, p. 51-70. \[1 POLY (11,12), 1 POLY
> (11,12,154), 1 POLY (11,12,218), 1 POLY (11,12,217,218), 1 POLY
> (11,12,154,217,218)\]
>
> 13\. \_\_\_1980, Landslide maps showing field classification, Point
> Dume Quadrangle, California: U.S. Geological Survey Miscellaneous
> Field Studies Map MF-1167, scale 1:24,000. \[1 POLY (13), 1 POLY
> (13,218), 1 POLY (13,217,218)\]
>
> 14\. Cleveland, G.B., 1973, Fire + rain = mudflows; Big Sur, 1972:
> California Geology, v. 26, no. 6, p. 127-139. \[1 PT (14)\]
>
> 15\. Colman, S.M., 1973, History of mass movement processes in the
> Redwood Creek Basin, Humboldt County, California: Pennsylvania State
> University, unpublished Master's thesis, 180 p. \[1 POLY (15,69)\]
>
> 16\. Conwell, F.R., and Fuqua, W.D., 1960, Engineering geology of
> debris flows along the southwest side of the San Joaquin Valley,
> California, 1957-59, *in* Regional subsidence exploration, debris flow
> study: California Department of Water Resources, Division of Design
> and Construction Engineering Laboratories, Exploration Section Report
> no. E-3, 30 p. \[1 POLY (16)\]
>
> 17\. Crandell, D.R., Mullineaux, D.R., Sigafoos, R.S., and Rubin, M.,
> 1974, Chaos Crags eruptions and rockfall-avalanches, Lassen Volcanic
> National Park, California: U.S. Geological Survey, Journal of
> Research, v. 2, no. 1, p. 49-60. \[1 PT (17,34)\]
>
> 224\. Crandell, D.R., Miller, C.D., Glicken, H.X., Christiansen, R.L.,
> Newhall, C.G., 1984, Catastrophic debris avalanches from Mount Shasta
> volcano, California: Geology, v. 12, p. 143-146. \[1 POLY (39,124,
> 146, 224)\]
>
> 18\. Crippen, J.R., 1979, Potential hazards from mudflows and debris
> movement in the Furnace Creek area, Death Valley National Monument,
> California-Nevada: U.S. Geological Survey Open-File Report 79-991, 20
> p. \[1 PT (18)\]
>
> 125\. Cronin, V.S., Slosson, J.E., Slosson, T.L., and Shuirman, G.,
> 1992, Deadly debris flows on I-5 near Grapevine, CA, *in* French, R.
> H., ed., Hydraulics, Hydrology of Arid Lands, Proceedings of the
> International Symposium: New York, American Society of Civil
> Engineers, p. 78-83. \[1 PT (125)\]
>
> 120\. Davenport, C.W., 1982, Geology and geomorphic features related
> to landsliding, Smith River 7 1/2-minute Quadrangle, Del Norte County,
> California: California Division of Mines and Geology, Open-File Report
> 83-19 SF, scale 1:24,000. \[1 POLY (44,109)\]
>
> 19\. \_\_\_1983, Geology and geomorphic features related to
> landsliding, High Divide 7.5-minute quadrangle, Del Norte County,
> California: California Division of Mines and Geology Open-File Report
> 83-18 SF, scale 1:24,000. \[1 POLY (19)\]
>
> 164\. \_\_\_1983, Geology and geomorphic features related to
> landsliding, Hiouchi 7.5' quadrangle, Del Norte County, California:
> California Division of Mines and Geology, Open-File Report 83-4 SF,
> scale1:24,000. \[1 POLY (164)\]
>
> 165\. \_\_\_1983, Geology and geomorphic features related to
> landsliding, Leggett 7.5' quadrangle, Mendocino County, California:
> California Division of Mines and Geology, Open-File Report 83-40 SF,
> scale 1:24,000. \[1 POLY (165)\]
>
> 166\. \_\_\_1984, Geology and geomorphic features related to
> landsliding, Tan Oak Park 7.5' quadrangle, Mendocino County,
> California: California Division of Mines and Geology, Open-File Report
> 84-17 SF, scale 1:24,000. \[1 POLY (166)\]
>
> 167\. \_\_\_1984, Geology and geomorphic features related to
> landsliding, Point Arena 7.5' quadrangle, Mendocino County,
> California: California Division of Mines and Geology, Open-File Report
> 84-46 SF, scale 1:24,000. \[1 POLY (167)\]
>
> 168\. \_\_\_1984, Geology and geomorphic features related to
> landsliding, Point Arena NE 7.5' quadrangle, Mendocino County,
> California: California Division of Mines and Geology, Open-File Report
> 84-47 SF, scale 1:24,000. \[1 POLY (168)\]
>
> 169\. \_\_\_1984, Geology and geomorphic features related to
> landsliding, Gualala 7.5' quadrangle, Mendocino County, California:
> California Division of Mines and Geology, Open-File Report 84-48 SF,
> scale 1:24,000. \[1 POLY (169)\]
>
> 20\. \_\_\_1984, Geology and geomorphic features related to
> landsliding, Noble Butte 7 1/2-minute Quadrangle, Mendocino County,
> California: California Division of Mines and Geology Open-File Report
> 83-41 SF, scale 1:24,000. \[1 POLY (20)\]
>
> 21\. \_\_\_1984, Geology and geomorphic features related to
> landsliding, Requa 7 1/2-minute Quadrangle, Del Norte County,
> California: California Division of Mines and Geology Open-File Report
> 84-8 SF, scale 1:24,000. \[1 POLY (21)\]
>
> 22\. \_\_\_1984, Geology and geomorphic features related to
> landsllding, Childs Hill 7 1/2-minute Quadrangle, Del Norte County,
> California: California Division of Mines and Geology Open-File Report
> 84-7 SF, scale 1:24,000. \[1 POLY (22)\]
>
> 214\. \_\_\_1984, An analysis of slope failures in eastern Marin
> County, California, resulting from the January 3rd and 4th, 1982,
> storm: California Division of Mines and Geology, OpenFileReport
> 84-22SF, scale 1:62,500. \[1 POLY (128,212,213,214,222)\]
>
> 140\. \_\_\_1983, Sandy Beach road landslides, Solano County,
> California: California Division of Mines and Geology, unpublished memo
> to R.H. Sydnor, April 20. \[1 PT (140)\]
>
> 122\. Degraff, J.V., 1994, The geomorphology of some debris flows in
> the southern Sierra Nevada, California: Geomorphology, v. 1, no. 4, p.
> 231-252. \[29 PT (122)\]
>
> 24\. Durgan, P.B., 1977, Landslides and the weathering of granitic
> rocks: Geological Society of America, Reviews in Engineering Geology,
> v. 3, p. 127-131. \[1 PT (24)\]
>
> 23\. Dwyer, M.J., 1972, Landslides and related processes in the Round
> Valley-Little Lake Valley and Fort Bragg region, Mendocino County,
> California, *in* Geologic guide to the northern Coast Ranges; Lake,
> Mendocino, and Sonoma Counties, California: Geological Society of
> Sacramento, p. 33-49. \[1 PT (23)\]
>
> 25\. Ellen, S.M., Peterson, D.M., and Reid, G.O., 1982, Areas
> susceptible to shallow landsliding, Marin and Sonoma Counties,
> California: U.S. Geological Survey Miscellaneous Field Studies Map
> ME-1406, scale 1:62,500. \[1 PT (25,27,85)\]
>
> 26\. Ellen, S.M., Peterson, D.M., Reid, G.O., and Savina, M.E., 1979,
> Hillslope forms and landslide processes in erosional terrain on
> Franciscan rocks of the Marin Peninsula, California \[abs. \]:
> Geological Society of America, Abstracts with Programs, v. 11, no. 3,
> p. 77. \[1 PT (26)\]
>
> 128\. Ellen, S.D., Mark, R.K., Wieczorek, G.F., Wentworth, C.M.,
> Ramsey, D.R., and May, T.E., 1997, Map of debris flow source areas in
> the San Francisco Bay Region, California: U.S. Geological Survey
> Open-File Report 97-745E (18,000 + debris flows from digital data).
> \[3 POLY (128), 1 POLY (113, 128), 1 POLY (128,203), 1 POLY (128,204),
> 1 POLY (128,205), 2 POLY (128,206), 1 POLY (128,209), 1 POLY
> (128,210), 1 POLY (128,211), 1 POLY (128,210,211), 1 POLY
> (128,212,213,214,222)\]
>
> 1\. EOS, 1979, Predictable mudflows: EOS, v. 60, no. 11, p. 159. \[1
> PT (1,57,66,68,83)\]
>
> 139\. Falls, J.N., and Spittler, T.E., 1997, Preliminary engineering
> geologic review of debris flow at Stafford, Humboldt County,
> California: California Division of Mines and Geology, unpublished memo
> to C.E. Anthony, California Department of Forestry, March 12. \[1 PT
> (139)\]
>
> 152\. Fife, D.L., 1974, Geology of the south half of the El Toro
> quadrangle, Orange County, California: California Division of Mines
> and Geology, Special Report 110, scale 1:12,000. \[1 POLY (152), 1
> POLY (152,215)\]
>
> 27\. Foggin, G.T., III, and Rice, R.M., 1979, Predicting slope
> stability from aerial photos: Journal of Forestry, v. 77, no. 2, p.
> 152-155. \[6 PT (27), 1 PT (25,27,85)\]
>
> 31\. Harp, E.L., and Herd, D.G., 1982, Debris flows induced by the
> January 3-4, 1982, storm in Santa Cruz County, California \[abs.\]:
> Geological Society of America, Abstracts with Programs, v. 14, no. 7,
> p. 507-508. \[1 PT (31)\]
>
> 211\. Haydon, W.D., 1995, Landslide hazards in the
> Martinez-Orinda-Walnut Creek area, Contra Costa County, California:
> California Division of Mines and Geology, Open-File Report 95-12
> (Landslide Hazard Identification Map no. 32), scale 1:24,000. \[1 POLY
> (128,211), 1 POLY (128,210,211)\]
>
> 131\. Haydon, W.D., and Bedrossian, T.L., 1998, Engineering review of
> Rio Nido landslide, Sonoma County, California: California Division of
> Mines and Geology, unpublished memo to S. Covall, Sonoma County
> Emergency Services Coordinator, February 27. \[1 PT (131)\]
>
> 34\. Heath, J.P., 1959, Dating chaos jumbles and avalanche-deposits in
> Lassen National Park (California): American Journal of Science, v.
> 257, no. 7, p. 537-538. \[1 PT (17,34)\]
>
> 37\. Highway research board #3, unpublished report. \[1 PT (37)\]
>
> 38\. Highway research board #56, unpublished report. \[1 PT (38)\]
>
> 39\. Hill, M., Egenhoff, E.L., 1977, A California Jokulhlaup:
> Earthquake Information Bulletin, v. 9, no. 1, p. 27-31. \[1 POLY
> (39,124, 146, 224)\]
>
> 41\. Holzhausen, G.R., 1974, The Lerida Court landslide of 1973:
> renewed failure within a prehistoric landslide system in Ladera,
> California: Stanford University, unpublished Master's thesis. \[1 PT
> (41)\]
>
> 42\. Hooke, R.L., 1967, Process on arid-region alluvial fans: Journal
> of Geology, v. 75, p. 438-460. \[2 PT (42)\]
>
> 43\. Hsu, E.Y., 1982, Investigation and inventory of slope failures
> that occurred in 1978 and 1980 in the Los Angeles 7 1/2-minute
> Quadrangle, Los Angeles County, California: California Division of
> Mines and Geology, Open-File Report 82-26 LA, 85 p. \[1 POLY (43), 1
> POLY (43,217)\]
>
> 153\. Hsu, E.Y., Saul, R.B., Tan, S.S., Treiman, J.A., and Weber,
> F.H., Jr., 1982, Slope stability and Geology of the Baldwin Hills, Los
> Angeles County, California: California Division of Mines and Geology,
> Special Report 152, 93 p. \[1 POLY (153)\]
>
> 127\. Hubert, J.F., and Filipov, A.J., 1989, Debris-flow deposits in
> alluvial fans on the west flank of the White Mountains, Owens Valley,
> California, U.S.A: Sedimentary Geology, v. 61, p. 177-205. \[7 PT
> (127)\]
>
> 124\. Hupp, C.R., Osterkamp, W.R., and Thornton, J.L., 1987,
> Dendrogeomorphic evidence and dating of recent debris flows on Mount
> Shasta, Northern California: U.S. Geological Survey Professional
> Paper, 1396-B. \[1 POLY (39,124, 146, 224)\]
>
> 154\. Irvine, P.J., 1989, Landslide hazards in the north half of the
> Calabasas quadrangle, Los Angeles and Ventura Counties, California:
> California Division of Mines and Geology, Open-File Report 89-18
> (Landslide Hazard Identification Map No. 20), scale 1:24,000. \[1 POLY
> (154), 1 POLY (11,12,154), 1 POLY (154,218), 1 POLY (154,217,218), 1
> POLY (11,12,154,217,218)\]
>
> 155\. \_\_\_1990, Landslide hazards in the Simi Valley area, Los
> Angeles and Ventura Counties, California: California Division of Mines
> and Geology, Open-File Report 90-17(Landslide Hazard Identification
> Map No. 22), scale 1:24,000. \[1 POLY (155), 1 POLY (155,159), 1 POLY
> (155,160), 1 POLY (155,218)\]
>
> 156\. \_\_\_P.J., 1995, Landslide Hazards in the Moorpark and Santa
> Paula quadrangles, Ventura County, California: California Division of
> Mines and Geology, Open-File Report 95-07 (Landslide Hazard
> Identification Map No. 26), scale 1:24,000. \[1 POLY (156,161), 1 POLY
> (156,159)\]
>
> 142\. \_\_\_P.J., and Bedrossian, T.L., 1995, Debris-flow activity
> resulting from January 1995 rainstorms in the city of Fillmore,
> Ventura County, California: California Division of Mines and Geology,
> unpublished memo to S.E. Jewett, U.S. Department of Agriculture,
> January 23, 1995. \[1 PT (142)\]
>
> 44\. Jackson, L.E., 1977, Dating and recurrence frequency of
> prehistoric mudflows near Big Sur, Monterey County, California: U.S.
> Geological Survey, Journal of Research, v. 5, no. 1, p. 17-32. \[1
> POLY (44,109)\]
>
> 45\. Lowney, J.V. and Associates, Phase II report, investigations of
> landslides, Six Rivers National Forest, Contract no. 39-3327. \[2 PT
> (45)\]
>
> 46\. Kelly, F.R., 1983, Geology and geomorphic features related to
> landsliding, Westport 7.5-minute Quadrangle, Mendocino County,
> California: California Division of Mines and Geology, Open-file Report
> 83-32 SF, scale 1:24,000. \[1 POLY (46)\]
>
> 47\. \_\_\_1983, Geology and geomorphic features related to
> landsliding, Dutchmans Knoll 7 1/2-minute Quadrangle, Mendocino
> County, California: California Division of Mines and Geology,
> Open-file Report 83-33 SF, scale 1:24,000. \[1 POLY (47)\]
>
> 48\. \_\_\_1983, Geology and geomorphic features related to
> landsliding, Lincoln Ridge 7 1/2-minute Quadrangle, Mendocino County,
> California: California Division of Mines and Geology, Open-file Report
> 83-14 SF, scale 1:24.000. \[1 POLY (48)\]
>
> 170\. \_\_\_1984, Geology and geomorphic features related to
> landsliding, Hales Grove 7.5' quadrangle, Mendocino County,
> California: California Division of Mines and Geology, Open-File Report
> 84-15 SF, scale 1:24,000. \[1 POLY (170)\]
>
> 171\. \_\_\_1984, Geology and geomorphic features related to
> landsliding, Piercy 7.5' quadrangle, Mendocino County, California:
> California Division of Mines and Geology, Open-File Report 84-16 SF,
> scale 1:24,000. \[1 POLY (171)\]
>
> 172\. \_\_\_1983, Geology and geomorphic features related to
> landsliding, Inglenook 7.5' quadrangle, Mendocino County, California:
> California Division of Mines and Geology, Open-File Report 83-315 SF,
> scale 1:24,000. \[1 POLY (172)\]
>
> 173\. \_\_\_1984, Geology and geomorphic features related to
> landsliding, Arcata North 7.5' quadrangle, Mendocino County,
> California: California Division of Mines and Geology, Open-File Report
> 84-38 SF, scale 1:24,000. \[1 POLY (173)\]
>
> 174\. \_\_\_1984, Geology and geomorphic features related to
> landsliding, Arcata South 7.5' quadrangle, Mendocino County,
> California: California Division of Mines and Geology, Open-File Report
> 84-39 SF, scale 1:24,000. \[1 POLY (174)\]
>
> 50\. Kelsey, H.M., 1978, Earthflows in Franciscan melange, Van Duzen
> River basin, California: Geology, v. 6, no. 6, p. 361-364. \[1 POLY
> (49,50,51), 1 POLY (49,50,51,95), 1 POLY (49,50,51,186)\]
>
> 51\. \_\_\_1980, A sediment budget and an analysis of geomorphic
> process in the Van Duzen River basin, north coastal California,
> 1941-1975: Geological Society of America Bulletin, vol. 91, no. 4, p.
> 1119-1216. \[1 POLY (49,50,51), 1 POLY (49,50,51,95), 1 POLY
> (49,50,51,186)\]
>
> 49\. \_\_\_1982, Hillslope evolution and sediment movement in a
> forested headwater basin, Van Duzen River, north coastal California,
> *in* Swanson, F. J., Janda, R. J., Dunne, T., and Swanston, D. N.,
> eds., Sediment budgets and routing in forested drainage basins: U.S.
> Forest Service Pacific Northwest Forest and Range Experimental
> Station, General Technical Report PNW-141. \[1 POLY (49,50,51), 1 POLY
> (49,50,51,95), 1 POLY (49,50,51,186)\]
>
> 52\. Kilbourne, R.I., 1982, Geology and geomorphic features related to
> landsliding, Glenblair NW \[Noyo Hill\] 7.5-minute Quadrangle,
> Mendocino County, California: California Division of Mines and
> Geology, Open file Report 82-25 SF, scale 1:24,000. \[1 POLY (52), 1
> POLY (52,198)\]
>
> 53\. \_\_\_1983, Geology and geomorphic features related to
> landsliding, Glenblair SE \[Comptche\] 7 1/2 minute Quadrangle,
> Mendocino County, California: California Division of Mines and
> Geology, Open File Report 83-21 SF, scale 1:24,000. \[1 POLY (53)\]
>
> 118\. \_\_\_1983, Geology and geomorphic features related to
> landsliding, Fort Bragg 7 1/2-minute Quadrangle, California:
> California Division of Mines and Geology, Open-File Report 83-55 SF,
> scale 1:24,000. \[1 POLY (118)\]
>
> 175\. \_\_\_1983, Geology and geomorphic features related to
> landsliding, Mendocino 7.5' quadrangle, Mendocino County, California:
> California Division of Mines and Geology, Open-File Report 83-55 SF,
> scale 1:24,000. \[1 POLY (175), 1 POLY (175,198)\]
>
> 176\. \_\_\_1984, Geology and geomorphic features related to
> landsliding, Longvale 7.5' quadrangle, Mendocino County, California:
> California Division of Mines and Geology, Open-File Report 84-18 SF,
> scale 1:24,000. \[1 POLY (176)\]
>
> 177\. \_\_\_1984, Geology and geomorphic features related to
> landsliding, Willits \[Burbeck\] 7.5' quadrangle, Mendocino County,
> California: California Division of Mines and Geology, Open-File Report
> 84-19 SF, scale 1:24,000. \[1 POLY (177)\]
>
> 178\. \_\_\_1984, Geology and geomorphic features related to
> landsliding, Willits SW \[Greenough Ridge\] 7.5' quadrangle, Mendocino
> County, California: California Division of Mines and Geology,
> Open-File Report 84-20 SF, scale 1:24,000. \[1 POLY (178)\]
>
> 179\. \_\_\_1984, Geology and geomorphic features related to
> landsliding, Iron Peak 7.5' quadrangle, Mendocino County, California:
> California Division of Mines and Geology, Open-File Report 84-40 SF,
> scale 1:24,000. \[1 POLY (179)\]
>
> 180\. \_\_\_1984, Geology and geomorphic features related to
> landsliding, Laytonville 7.5' quadrangle, Mendocino County,
> California: California Division of Mines and Geology, Open-File Report
> 84-41 SF, scale 1:24,000. \[1 POLY (180)\]
>
> 181\. \_\_\_1984, Geology and geomorphic features related to
> landsliding, Boonville NW \[Bailey Ridge\] 7.5' quadrangle, Mendocino
> County, California: California Division of Mines and Geology,
> Open-File Report 84-42 SF, scale 1:24,000. \[1 POLY (181)\]
>
> 54\. \_\_\_1984, Geology and geomorphic features related to
> landsliding, Sherwood Peak 7 1/2-minute Quadrangle, Mendocino County,
> California: California Division of Mines and Geology, Open-file Report
> 83-38 SF, scale 1:24,000. \[1 POLY (54)\]
>
> 55\. \_\_\_1984, Geology and geomorphic features related to
> landsliding, Cahto Peak 7 1/2-minute Quadrangle, Mendocino County,
> California: California Division of Mines and Geology, Open-file Report
> 83-39 SF, scale 1:24,000. \[1 POLY (55)\]
>
> 192\. \_\_\_1985, Geology and geomorphic features related to
> landsliding, Fortuna 7.5' quadrangle, Humboldt County, California:
> California Division of Mines and Geology, Open-File Report 85-1 SF,
> scale 1:24,000. \[1 POLY (192)\]
>
> 193\. \_\_\_1985, Geology and geomorphic features related to
> landsliding, Hydesville 7.5' quadrangle, Humboldt County, California:
> California Division of Mines and Geology, Open-File Report 85-2 SF,
> scale 1:24,000. \[2 POLY (193), 1 POLY (49,50,51,193)\]
>
> 194\. \_\_\_1985, Geology and geomorphic features related to
> landsliding, McWhinney Creek 7.5' quadrangle, Humboldt County,
> California: California Division of Mines and Geology, Open-File Report
> 85-3 SF, scale 1:24,000. ), \[1 POLY (194), 1 POLY (49,50,51,194)\]
>
> 195\. \_\_\_1985, Geology and geomorphic features related to
> landsliding, Korbel 7.5' quadrangle, Humboldt County, California:
> California Division of Mines and Geology, Open-File Report 85-5 SF,
> scale 1:24,000. \[1 POLY (195)\]
>
> 56\. Kilbourne, R.T., and Mata-Sol, A.R., 1983, Geology and geomorphic
> features related to landsliding, Glenblair SW 7 1/2-minute Quadrangle,
> Mendocino County, California: California Division of Mines and
> Geology, Open-File Report 83-20 SF, scale 1:24,000. \[1 POLY (56), 1
> POLY (56,198)\]
>
> 196\. Kilbourne, R.T., and Morrison, S.D., 1985, Geology and
> geomorphic features related to landsliding, Field's Landing 7.5'
> quadrangle, Humboldt County, California: California Division of Mines
> and Geology, Open-File Report 85-4 SF, scale 1:24,000. \[1 POLY
> (196)\]
>
> 57\. Kojan, E., 1979, The mudflow-landslide hazard at Wrightwood, San
> Bernardino County, California: U.S. Forest Service, San Bernardino
> National Forest, California, Project no. O1601, 10 p. \[1 PT
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>
> 58\. Lehre, A.K., 1982, Sediment mobilization and production from a
> small Coast Range catchment, Lone Tree Creek, Marin County,
> California: Unpublished Doctorate thesis, University of California,
> Berkeley, 235 p. \[1 PT (58,59)\]
>
> 59\. \_\_\_1982, Sediment budget of a small Coast Range drainage basin
> in north-central California, *in* Swanson, F.J., Janda, R.J., Dunne,
> T., and Swanston, D.N., eds., Sediment budgets and routing in forested
> drainage basins: U.S. Forest Service Pacific Northwest Forest and
> Range Experimental Station, General Technical Report PNW-141. \[1 PT
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> 201\. Majmundar, H.H., 1994, Landslide hazards in the Hollister area,
> San Benito County, California: California Division of Mines and
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> no. 30), scale 1:24,000. \[1 POLY (201)\]
>
> 202\. \_\_\_1994, Landslide hazards in the Tres Pinos and Paicines
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> no. 31), scale 1:24,000. \[1 POLY (202)
>
> 203\. \_\_\_1995, Landslide hazards in the Hayward quadrangle and
> parts of the Dublin quadrangle, Alameda and Contra Costa Counties,
> California: California Division of Mines and Geology, Open-File Report
> 95-14 (Landslide Hazard Identification Map no. 37), scale 1:24,000.
> \[1 POLY (203), 1 POLY (128,203)\]
>
> 204\. \_\_\_1995, Landslide hazards in the Las Trampas Ridge
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> Costa Counties, California: California Division of Mines and Geology,
> Open-File Report 95-15 (Landslide Hazard Identification Map no. 38),
> scale 1:24,000. \[1 POLY (128,204)\]
>
> 205\. \_\_\_1991, Landslide hazards in the Tassajara and Byron Hot
> Springs 7.5' quadrangles, Alameda and Contra Costa Counties,
> California: California Division of Mines and Geology, Open-File Report
> 92-5, scale 1:24,000. \[1 POLY (205), 1 POLY (128,205)\]
>
> 206\. \_\_\_1995, Landslide hazard in the Livermore Valley and
> vicinity, Alameda and Contra Costa Counties, California: California
> Division of Mines and Geology, Open-File Report 91-2 (Landslide Hazard
> Identification Map no. 21), scale 1:24,000. \[1 POLY (206), 2 POLY
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>
> 207\. \_\_\_1989, Landslide hazards in the Vacaville area, Solano
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>
> 208\. \_\_\_1987, Landslide hazards in south half of the Fairfield
> North quadrangle, Solano County, California: California Division of
> Mines and Geology, Open-File Report 87-9 (Landslide Hazard
> Identification Map no. 11), scale 1:24,000. \[1 POLY (208)\]
>
> 182\. Manson, M.W., 1984, Geology and geomorphic features related to
> landsliding, Navarro NE \[Navarro\] 7.5' quadrangle, Mendocino County,
> California: California Division of Mines and Geology, Open-File Report
> 84-44 SF, scale 1:24,000. \[1 POLY (182)\]
>
> 183\. \_\_\_1984, Geology and geomorphic features related to
> landsliding, Navarro SE \[Cold Spring\] 7.5' quadrangle, Mendocino
> County, California: California Division of Mines and Geology,
> Open-File Report 84-45 SF, scale 1:24,000. \[1 POLY (183)\]
>
> 184\. \_\_\_1984, Geology and geomorphic features related to
> landsliding, Mallo Pass Creek 7.5' quadrangle, Mendocino County,
> California: California Division of Mines and Geology, Open-File Report
> 84-13 SF, scale 1:24,000. \[1 POLY (184)\]
>
> 185\. \_\_\_1984, Geology and geomorphic features related to
> landsliding, Boonville SW \[Philo\] 7.5' quadrangle, Mendocino County,
> California: California Division of Mines and Geology, Open-File Report
> 84-43 SF, scale 1:24,000. \[1 POLY (185)\]
>
> 61\. \_\_\_1984, Geology and geomorphic features related to
> landsliding, Elk 7 1/2-minute Quadrangle, Mendocino County,
> California: California Division of Mines and Geology, Open-File Report
> 84-12 SE, scale 1:24,000. \[1 PT (61)\]
>
> 209\. \_\_\_1988, Landslide hazards in the Cordelia-Vallejo area,
> Solano and Napa Counties, California: California Division of Mines and
> Geology, Open-File Report 88-22 (Landslide Hazard Identification Map
> no. 13), scale 1:24,000. \[2 POLY (209), 1 POLY (128,209)\]
>
> 197\. \_\_\_ 1989, Landslide hazards in the eastern Clear Lake area,
> Lake County, California: California Division of Mines and Geology,
> Open-File Report 89-27, scale 1:24,000. \[1 POLY (197)\]
>
> 62\. Matthews, R.A., 1968, Geological hazards of Lake Tahoe Basin
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>
> 63\. McCaffrey, W.F., and DeGraff, J.V., 1982, Geologic resources
> inventory, geologic reconnaissance of surficial features Sierra
> National Forest: U.S. Forest Service, Sierra National Forest,
> California, 21 maps, scale 1:24,000. \[2 POLY (63)\]
>
> 199\. McKittrick, M.A., 1995, Geology and geomorphic features related
> to landsliding, and relative landslide susceptibility categories,
> North Fork Mokelumne River, Amador County, California: California
> Division of Mines and Geology, Open-File Report 95-6, scale 1:24,000.
>
> 200\. \_\_\_1995, Geology and geomorphic features related to
> landsliding, and relative landslide susceptibility categories, North
> Fork Gualala River, Mendocino County, California: California Division
> of Mines and Geology, Open-File Report 95-5, scale 1:24,000.
>
> 65\. Merifield, P.M., 1984, Observations on slope failure associated
> with the rainstorms of 1978, 1980 and 1983 in southern California
> \[abs.\], *in* Bowles, D. S., ed., Delineation of landslide, flash
> flood and debris flow hazards in Utah; Proceedings of a specialty
> conference: Utah Water Research Laboratory, Logan, Utah, June 14-15,
> 1984, p. 163-177. \[1 PT (65,84)\]
>
> 157\. Miller, R.V., and Morton, P.K., 1984, Engineering geology of
> part of the western half of the Santiago Peak quadrangle, Orange
> County, California: California Division of Mines and Geology,
> Open-File Report 84-58LA, scale 1:12,000. \[1 POLY (157), 1 POLY
> (157,215)\]
>
> 158\. Miller, R.V., and Siang, S.T., 1983, Geologic map of part of the
> south half of the Black Star Canyon Quadrangle, Orange County,
> California: California Division of Mines and Geology, Open-File Report
> 83-34LA, scale 1:12,000. \[1 POLY (158), 1 POLY (158, 215)\]
>
> 66\. Morton, D.M., 1970, 1969 mudflows at Wrightwood, San Bernardino
> County, California \[abs.\]: Geological Society of America, Abstracts
> with Programs, v. 2, no. 2, p. 121-122. \[1 PT (1,57,66,68,83)\]
>
> 67\. \_\_\_1971, Seismically triggered landslides in the area above
> the San Fernando Valley: U.S. Geological Survey Professional Paper
> 733, p. 99-104. \[1 PT (67)\]
>
> 159\. \_\_\_1976, Reconnaissance surficial geologic maps of the
> Fillmore, Moorpark, Piru, and Simi 7.5' quadrangles, Ventura County,
> southern California: U.S. Geological Survey Open-File Report 76-210,
> scale 1:24,000. \[3 POLY (159), 1 POLY (155,159), 1 POLY (156,159)\]
>
> 160\. \_\_\_1976, Reconnaissance surficial geologic maps of the
> Newhall, Oat Mountain, Santa Susana, and Val Verde 7.5' quadrangles,
> Los Angeles and Ventura Counties, southern California: U.S. Geological
> Survey Open-File Report 76-211, scale 1:24,000. \[4 POLY (160), 1 POLY
> (155,160), 2 POLY (160,217), 1 POLY (160, 219), 1 POLY (160,220), 1
> POLY (160,221), 1 POLY (160,217,221)\]
>
> 161\. \_\_\_1976, Reconnaissance surficial geologic maps of the Santa
> Paula, Santa Paula Peak, Saticoy, and Ojai 7.5' quadrangles, Ventura
> County, southern California: U.S. Geological Survey Open-File Report
> 76-212, scale 1:24,000. \[3 POLY (161), 1 POLY (156,161)\]
>
> 68\. Morton, D.M, and Campbell, R.H., 1974, Spring mudflows at
> Wrightwood, southern California: Quarterly Journal of Engineering
> Geology, v. 7, no. 4, p. 377-384. \[1 PT (1,57,66,68,83)\]
>
> 162\. Morton, P.K., 1974, Geology and engineering geologic aspects of
> the south half of the Canada Gobernadora quadrangle, Orange County,
> California: California Division of Mines and Geology, Special Report
> 111, scale 1:12,000. \[1 POLY (162), 1 POLY (162, 215)\]
>
> 163\. Morton, P.K., Edgington, W.J., and Fife, D.L., 1974, Geology and
> engineering geologic aspects of the San Juan Capistrano quadrangle,
> Orange County, California: California Division of Mines and Geology,
> Special Report 112, scale 1:12,000. \[1 POLY (163), 1 POLY (163,
> 215)\]
>
> 215\. Morton, P.K., Miller, R.V., and Fife, D.L., 1973,
> Geo-Environmental maps of Orange County, California: California
> Division of Mines and Geology, Preliminary Report 15, scale 1:48,000.
> \[2 POLY (215), 1 POLY (152,215), 1 POLY (157,215), 1 POLY (158, 215),
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>
> 69\. Nolan, K.M., Harden, D.R., and Colman, S.M., 1976, Erosional
> landform map of the Redwood Creek drainage basin, Humboldt County,
> California, 1947-74: U.S. Geological Survey, Water Resources
> Investigations Open File Report OF-76-42, scale 1:62,500. \[1 POLY
> (15,69)\]
>
> 146\. Osterkamp, W.R., Hupp, C.R., and Blodgett, J.C., 1986, Magnitude
> and frequency of debris flows, and areas of hazard on Mount Shasta,
> California: U.S. Geological Survey Professional Paper 1396-C, 21 p.
> \[1 POLY (39,124, 146, 224)\]
>
> 70\. Pascocci, V.N., 1985, 475 landslides in the city of Pacifica,
> California \[abs.\], *in* Bowles, D. S., ed., Delineation of
> landslide, flash flood and debris flow hazards in Utah; Proceedings of
> a specialty conference: Utah Water Research Laboratory, Logan, Utah,
> June 14-15, 1984, p. 99-112. \[1 PT (70,87,150)\]
>
> 72\. Rantz, S.E., 1970, Urban sprawl and flooding in southern
> California: U.S. Geological Survey Circular 601-B, 11 p. \[1 PT (72)\]
>
> 149\. Reneau, S.E., and Dietrich, W.E., 1987, The importance of
> hollows in debris flow studies; Examples from Marin County,
> California: Geological Society of America Reviews in Engineering
> Geology, v. 7, p. 165-180. \[3 PT (149)\]
>
> 73\. Renwick, H., Brumbaugh, R., and Loeher, L., 1982, Landslide
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>
> 74\. Rice, S.J., and Chase, G.B., 1973, Geology and geologic hazards
> of the Novato area, Marin County, California: California Division of
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> PT (74)\]
>
> 222\. Rice, S.J., and Strand, R.G., 1972, Geologic and slope stability
> maps of the Tennessee Valley, Lucas Valley, and north coastal areas,
> Marin County, California: California Division of Mines and Geology,
> Open-File Report 72-22, scale 1:12,000. \[1 POLY
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>
> 213\. Rice, S.J., Smith, T.C., and Strand R.G., 1976, Geology for
> planning central and southeastern Marin County, California: California
> Division of Mines and Geology, Open-File Report 76-2, scale 1:12,000.
> \[1 POLY (128,212,213,214,222)\]
>
> 75\. Richards, C.A., 1953, The mudflows of Mosaic Canyon, Death Valley
> National Monument, California: Compass of the Sigma Gamma Epsilon, v.
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>
> 77\. Rodine, J.D., 1975, Analysis of the mobilization of debris flows:
> Stanford University, unpublished Ph.D. thesis: 235 p. \[1 PT (77,78)\]
>
> 78\. Rodine, J.D., and Johnson, A.M., 1976, The ability of debris,
> heavily freshened with coarse material, to flow on gentle slopes:
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>
> 79\. Saul, R. B., 1977, Geologic hazards, Mt. Wilson Quadrangle:
> California Geology, v. 30, no. 2, p. 35-36. \[1 POLY (79). 1 POLY
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>
> 150\. Shlemon, R.J., Wright, R.H., and Montgomery, D.R., 1987, Anatomy
> of a debris flow, Pacifica, California: Geological Society of America
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> 150)\]
>
> 80\. Schlocker, J., 1974, Geology of the San Francisco North
> Quadrangle, California: U.S. Geological Survey Professional Paper 782,
> 109 p., scale, 1:24,000. \[1 POLY (80)\]
>
> 138\. Schlosser, J.P., and Spittler, T.E., 1995, Preliminary
> engineering geologic review of Snow Creek debris slide - on site of
> former THP 2-84-396 SIS (6): California Division of Mines and Geology,
> unpublished memo to L.I. Keefer, California Department of Forestry,
> August 4. \[1 PT (138)\]
>
> 81\. Scott, K.M., 1971, Origin and sedimentation of 1969 debris flows
> near Glendora, California: U.S. Geological Survey Professional Paper
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>
> 82\. Scott, K.M., and Williams, R.P., 1978, Erosion and sediment yield
> in the Transverse Range: U.S. Geological Survey Professional Paper
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>
> 83\. Sharp, R.P., and Nobles, L.H., 1953, Mudflow of 1941 at
> Wrightwood, southern California: Geological Society of America
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> 84\. Shuirman, G., Slosson, J.E., and Yoakum, D., 1985, Relationship
> of fire/flood to debris flows \[abs.\], *in* Bowles, D. S., ed.,
> Delineation of landslide, flash flood and debris flow hazards in Utah;
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> Logan, Utah, June 14-15, 1984, p. 178-194. \[1 PT (65,84)\]
>
> 85\. Siederman, D.J., Borum, J.D., 1983, Hillslope processes and urban
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> 126\. Slosson, J.E., and Slosson, T.E., 1992, Olancha debris flow: An
> example of an isolated damaging event, *in* French, Richard H. ed.,
> Hydraulics, Hydrology of Arid Lands, Proceeding of the International
> Symposium: New York, American Society of Civil Engineers, p. 72-77.
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>
> 87\. Smith, T.C., 1977, The debris avalanche; a commonly overlooked
> geologic hazard \[abs.\]: Geological Society of America Abstracts with
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> 88\. Smith, T.C., Hart, E.R., Baldwin, J.E., and Rodrigues, R.J.,
> 1982, Landslides and related storm damage January 1982, San Francisco
> Bay Region: California Geology, v. 35, no. 7, p. 139-152. \[1 PT
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>
> 147\. Smith, T.C., 1985, Landslide hazards in the southeastern part of
> the Petaluma dairy belt, Sonoma County, California: California
> Division of Mines and Geology Open-File Report 85-5 SF, scale
> 1:24,000. \[1 POLY (147)\]
>
> 89\. Spittler, T.E., 1983, Geology and geomorphic features related to
> landsllding, Scotia 7 1/2-minute Quadrangle, Humboldt County,
> California: California Division of Mines and Geology, Open-File Report
> 82-20 SF, scale 1:24,000. \[1 POLY (89)\]
>
> 90\. \_\_\_1983, Geology and geomorphic features related to
> landsliding, Bull Creek 7 1/2-minute Quadrangle, Humboldt County,
> California: California Division of Mines and Geology, Open-File Report
> 83-3 SF, scale 1:24,000. \[1 POLY (90)\]
>
> 91\. \_\_\_1983, Geology and geomorphic features related to
> landsliding, Miranda 7 1/2-minute Quadrangle, Humboldt County,
> California: California Division of Mines and Geology, Open-File Report
> 83-25 SF, scale 1:24,000. \[1 POLY (91)\]
>
> 92\. \_\_\_1983, Geology and geomorphic features related to
> landsliding, Garberville 7 1/2-minute Quadrangle, Humboldt County,
> California: California Division of Mines and Geology, Open-File Report
> 83-26 SF, scale 1:24,000. \[1 POLY (92)\]
>
> 93\. \_\_\_1983, Geology and geomorphic features related to
> landsliding, Weott 7 1/2-minute Quadrangle, Humboldt County,
> California: California Division of Mines and Geology, Open File Report
> 83-6 SF, scale 1:24,000. \[1 POLY (93)\]
>
> 94\. \_\_\_1983, Geologic and geomorphic features related to
> landsliding, Myers Flat 7 1/2-minute Quadrangle, Humboldt County,
> California: California Division of Mines and Geology, Open-File Report
> OFR-83-22 SF, scale 1:24,000. \[1 POLY (94)\]
>
> 95\. \_\_\_1983, Geologic and geomorphic features related to
> landsliding, Bridgeville 7 1/2-minute Quadrangle, Humboldt County,
> California: California Division of Mines and Geology, Open-File Report
> OFR-83-23 SE, scale 1:24,000. \[1 POLY (95)\]
>
> 186\. \_\_\_1983, Geology and geomorphic features related to
> landsliding, Redcrest 7.5' quadrangle, Humboldt County, California:
> California Division of Mines and Geology, Open-File Report 83-17 SF,
> scale 1:24,000. \[1 POLY (186), 1 POLY (49,50,51,186)\]
>
> 187\. \_\_\_1984, Geology and geomorphic features related to
> landsliding, Honeydew 7.5' quadrangle, Humboldt County, California:
> California Division of Mines and Geology, Open-File Report 84-11 SF,
> scale 1:24,000. \[1 POLY (187)\]
>
> 188\. \_\_\_1984, Geology and geomorphic features related to
> landsliding, Capetown 7.5' quadrangle, Humboldt County, California:
> California Division of Mines and Geology, Open-File Report 84-34 SF,
> scale 1:24,000. \[1 POLY (188)\]
>
> 189\. \_\_\_1984, Geology and geomorphic features related to
> landsliding, Ferndale 7.5' quadrangle, Humboldt County, California:
> California Division of Mines and Geology, Open-File Report 84-35 SF,
> scale 1:24,000. \[1 POLY (189)\]
>
> 190\. \_\_\_1984, Geology and geomorphic features related to
> landsliding, Taylor Peak 7.5' quadrangle, Humboldt County, California:
> California Division of Mines and Geology, Open-File Report 84-36 SF,
> scale 1:24,000. \[1 POLY (190)\]
>
> 191\. \_\_\_1984, Geology and geomorphic features related to
> landsliding, Buckeye Mountain 7.5' quadrangle, Humboldt County,
> California: California Division of Mines and Geology, Open-File Report
> 84-37 SF, scale 1:24,000. \[1 POLY (191)\]
>
> 96\. \_\_\_1984, Geology and geomorphic features related to
> landsliding, Briceland 7 1/2-minute Quadrangle, Humboldt County,
> California: California Division of Mines and Geology, Open-File Report
> 84-10 SF, scale 1:24,000. \[1 POLY (96)\]
>
> 117\. \_\_\_1984 Geology and Geomorphic features related to
> landsliding, Harris 7 1/2-minute Quadrangle, Humboldt County,
> California: California Division of Mines and Geology, Open-File Report
> 84-9 SF, scale 1:24,000. \[1 POLY (117)\]
>
> 130\. Spittler, T.E., and Bedrossian, T.L., 1995, Freezout road
> landslide - Sonoma County landslide evaluations: California Division
> of Mines and Geology, unpublished memo to A. Vellutini, Sonoma County
> Public Works, April 15. \[1 PT (130)\]
>
> 132\. \_\_\_1995, Engineering reinspection of THP 1-93-315 SON:
> California Division of Mines and Geology, unpublished memo to L.I.
> Keefer, California Department of Forestry, March 13. \[1 PT (132)\]
>
> 135\. \_\_\_1995, Geologic review inspection of THP 1-90-701 MEN:
> California Division of Mines and Geology, unpublished memo to L.I.
> Keefer, California Department of Forestry, January 30. \[1 PT (135)\]
>
> 133\. \_\_\_1997, Engineering geologic reinspection review of THP
> 1-96-524 SON - Fisher Conversion landslides: California Division of
> Mines and Geology, unpublished memo to C.E. Anthony, California
> Department of Forestry, January 9. \[1 PT (133)\]
>
> 143\. Spittler, T.E., Haydon, W.D., Bedrossian, T.E., 1995, Emergency
> review of landsliding along Big Sulphur Creek, Sonoma County,
> California: California Division of Mines and Geology, unpublished memo
> to R. King, U.S. Department of Agriculture, January 31. \[1 PT (143)\]
>
> 198\. Spittler, T.E., and McKittrick, M.A., 1995, Geology and
> geomorphic features related to landsliding, North and South Forks of
> Caspar Creek, Mendocino County, California: California Division of
> Mines and Geology, Open-File Report 95-8, scale 1:12,000. \[1 POLY
> (52,198), 1 POLY (56,198), 1 POLY (175,198)\]
>
> 97\. Swanston, D.N., Shanson, F.J., Coates, D.R., 1976, Timber
> harvesting, mass erosion, and steepland forest geomorphology in the
> Pacific Northwest, *in* Geomorphology and Engineering: Dowden,
> Hutchinson and Ross, Inc., p. 199-221. \[1 PT (97)\]
>
> 144\. Tan, S.S., and Bedrossian, T.L., 1998, Debris-flow and landslide
> hazards in the city of Laguna Beach, Orange County, California:
> California Division of Mines and Geology, unpublished memo to K.C.
> Frank, City Manager, Laguna Beach, California, April 17, 1998. \[1 PT
> (144)\]
>
> 216\. Tan, S.S., and Edgington, W.J., 1976, Geology and engineering
> geologic aspects of the Laguna Beach quadrangle, Orange County,
> California: California Division of Mines and Geology, Special Report
> 127, scale 1:12,000. \[1 POLY (216), 1 POLY (215,216)\]
>
> 220\. Treiman, J.A., 1986, Landslide hazards in the west half of the
> Newhall quadrangle, Los Angeles County, California: California
> Division of Mines and Geology, Open-File Report 86-6 LA (Landslide
> Hazard Identification Map No. 2), scale 1:24,000. \[1 POLY (160,220)\]
>
> 221\. \_\_\_1987, Landslide hazards in the north half of the Oat
> Mountain quadrangle, Los Angeles County, California: California
> Division of Mines and Geology, Open-File Report 87-8 LA (Landslide
> Hazard Identification Map No. 10), scale 1:24,000. \[1 POLY (160,221),
> 1 POLY (160,217,221)\]
>
> 30\. Troxell, H.C., and Peterson, J.Q., 1937, Flood in La Cãnada
> Valley, California, *in* Grover, N. C. (ed.), Contributions to the
> hydrology of the United States: U.S. Geological Survey Water Supply
> Paper 796. \[1 POLY (30), 1 POLY (30,217)\]
>
> 98\. U.S. Forest Service, Klamath National Forest, Timber sales
> report, 7/23/74; Oak Knoll Ranger District: Klamath National Forest,
> CA. \[1 PT (98)\]
>
> 100\. U.S. Forest Service, Klamath National Forest, 1970, Timber sales
> report, 12/4/70; Klamath National Forest, CA. \[1 PT (100)\]
>
> 101\. U.S. Forest Service, Klamath National Forest, 1977, Timber sales
> report, 1977; Klamath National Forest, CA. \[1 PT (101)\]
>
> 103\. U.S. Forest Service, Klamath National Forest, 1970, Timber sales
> report, 1/19/70 (debris flows inferred); Klamath National Forest, CA.
> \[1 PT (103)\]
>
> 123\. U.S. Forest Service, Region 5, Debris flows near Lake Tahoe:
> Earth Resources Monograph 14. \[2 PT (123)\]
>
> 212\. Wagner, D.L., 1977, Geology for planning in Western Marin
> County, California: California Division of Mines and Geology,
> Open-File Report 77-15 SF, scale 1:12,000. \[1 POLY
> (128,212,213,214,222)\]
>
> 104\. Washington Post, 1969, Floods in California kill at least 11:
> The Washington Post, Washington, D.C., January 26, 1969, p. A1. \[1 PT
> (81,104)\]
>
> 105\. \_\_\_1972, Huge mudslide wipes out center of Big Sur: The
> Washington Post, Washington D. C., November 17, 1972, p. A3. \[1 PT
> (105)\]
>
> 223\. Weber, F.H., 1980, Landsliding and flooding in Southern
> California during the winter of 1979-80, California Division of Mines
> and Geology, Open-File Report 80-3 LA. \[15 PT (223)\]
>
> 217\. Weber, F.H., Treiman, J.A., Tan, S.S., Miller, R.V., 1979,
> Landslides in the Los Angeles Region, California- Effects of
> February-March 1978 rains: California Division of Mines and Geology,
> Open-File Report 79-4 LA. \[4 POLY (217), 1 POLY (30,217), 1 POLY
> (43,217), 1 POLY (79,217), 2 POLY (160,217), 2 POLY (217,218), 1 POLY
> (13,217,218), 1 POLY (11,12,217,218), 1 POLY (154,217,218), 1 POLY
> (11,12,154,217,218), 1 POLY (160,217,221)\]
>
> 218\. Weber, F.H., and Wills, C.J., 1983, Map showing landslides of
> the central and western Santa Monica Mountains, Los Angeles and
> Ventura Counties, California: California Division of Mines and
> Geology, Open-File Report 83-16, scale 1:48,000. 1 POLY (218), 1 POLY
> (11,12,218), 1 POLY (13,218), 1 POLY (154,218), 1 POLY (155,218), 2
> POLY (217,218), 1 POLY (13,217,218), 1 POLY (11,12,217,218), 1 POLY
> (154,217,218), 1 POLY (11,12,154,217,218)\]
>
> 151\. Wells, W.G. II, 1987, The effects of fire on the generation of
> debris flows in southern California: Geological Society of America
> Reviews in Engineering Geology, v. 7, p. 105-124. \[1 POLY (151)\]
>
> 121\. Wieczorek, G.F., 197, Landslide susceptibility evaluation in the
> Santa Cruz Range, San Mateo County, California: University of
> California, Berkeley, Ph. D. thesis, 223 p. \[1 PT
> (110,111,121,129,148)\]
>
> 110\. \_\_\_1982, Map showing recently active and dormant landslides
> near La Honda, central Santa Cruz Mountains, CA: U.S. Geological
> Survey, Miscellaneous Field Studies Map MF-1422, scale 1:4,800. \[1 PT
> (110,111,121,129,148)\]
>
> 109\. \_\_\_1983, Written communication (air photos, 3/25/83). \[1
> POLY (44,109,120)\]
>
> 148\. \_\_\_1987, Effect of rainfall intensity and duration on debris
> flows in central Santa Cruz Mountains, California: Geological Society
> of America Reviews in Engineering Geology, v. 7, p. 93-104.
>
> \[1 PT (110,111,121,129,148)\]
>
> 111\. Wieczorek, G.F., Sarmiento, J., 1983, Significance of storm
> intensity-duration for triggering debris flows near La Honda,
> California: Geological Society of America Abstracts with Programs, v.
> 15, no. 5. \[1 PT (110,111,121,129,148)\]
>
> 113\. Williamson, J.A., 1975, Landslide susceptibility near Tomales
> Bay, California: San Francisco State University, unpublished Master's
> thesis, 113 p. \[1 POLY (113)\]
>
> 145\. Wills, C., 1999, written communication: unpublished field notes
> from 1995. \[3 PT (145)\]
>
> 129\. Wilson, R.C., and Wiezorek, G.F., 1995, Rainfall Thresholds for
> the initiation of debris flows at La Honda, California: Environmental
> and Engineering Geoscience, v. 1, no. 1, p. 11-27. \[1 PT
> (110,111,121,129,148)\]
>
> 114\. Wright, R.H., and Reid, G.O., 1975, Photointerpretlve map of
> landslides and surficial deposits of northernmost Napa County,
> California: U.S. Geological Survey, Miscellaneous Field Studies Map
> MF-677, scale 1:24,000. \[1 POLY (114)\]
>
> 116\. Zielbauer, E.J., 1966, Flood control problems encountered in
> southern California, *in* Lung, R., and Proctor, R., eds., Engineering
> geology in southern California, Association of Engineering Geologists
> Special Report. \[1 PT (116)\]
>
> **Colorado**
>
> 2\. Brabb, E.E., Reconaissance field investigations in Colorado, 1982,
> 1983, 1985, 1987. \[6 PT (2)\]
>
> 29\. Cannon, S.H., Powers, P.S., Pihl, R.A., Rogers, W.P., 1995,
> Preliminary evaluation of fire-related debris flows on Storm King
> Mountain, Glenwood Springs, CO: U.S. Geological Survey, Open File
> Report 95-508. \[1 PT (29)\]
>
> 30\. Chleborad, A.F., Ellis, W.L., and Kibler, D., 1997, Results of
> site investigation and instrumentation of the Keno gulch
> landslide/debris-flow source area, Aspen, CO: U.S. Geological Survey,
> Open File Report 97-717. \[1 PT (30)\]
>
> 3\. Clark, J.A., 1974, Mudflows in the San Juan Mountains, Colorado;
> controls and work: University of Colorado, unpublished Master\'s
> thesis. \[1 POLY (3) 1 POLY (3,9,23)\]
>
> 44\. Coe, J.A., and Godt, J.W., 1997, Characteristics of alluvial fans
> from tributaries of Clear Creek, Floyd Hill, Colorado: Geological
> Society of America Abstracts with Programs, 1997. \[1 POLY (44)\]
>
> 5\. Costa, J.E., and Jarrett, R.D., 1981, Debris flows in small
> mountain stream channels of Colorado and their hydrologic
> implications: Association of Engineering Geologists Bulletin, v. 18,
> no. 3, p. 309-322. \[7 PT (5)\]
>
> 6\. Curry, R.R., 1966, Observations of an alpine mudflow in the
> Tenmile Range, central Colorado: Geological Society of America
> Bulletin, v. 77, no. 7, p. 771-776. \[1 PT (6)\]
>
> 7\. Fleming, R.W., 1975, Debris flows and debris fans: Colorado
> Geological Survey Special Publication 8, p. 27-31. \[2 PT (7)\]
>
> 33\. Hammack, L., and Wohl, E., 1996, Debris-fan formation and rapid
> modification at Warm Springs Rapid, Yampa River, Colorado: Journal of
> Geology, v. 104, no. 6, p. 729-740. \[1 PT (33)\]
>
> 8\. Hansen, W.R., 1973, Effects of the May 5-6, 1973, storm in the
> greater Denver area, Colorado: U.S. Geological Survey Circular 689, 20
> p. \[2 PT (8)\]
>
> 9\. Ives, J.D., and Bovis, M.J., 1978, Natural hazards maps for
> land-use planning, San Juan Mountains, Colorado, USA, *in* Ives, J.D.,
> and Zimina, R.P., eds., Mountain geoecology and land-use implications:
> Arctic and Alpine Research, v. 10, no. 2, p. 185-212 (debris fans).
> \[1 POLY (9)\]
>
> 10\. Ives, J.D., Mears, A.I., Carrara, P.E., and Bovis, M.J., 1976,
> Natural hazards in mountainous Colorado: Association of American
> Geographers Annals, v. 66, no. 1, p. 129-144. \[1 PT (10)\]
>
> 31\. Jochim, C.L., 1986, Debris flow hazard in the immediate vicinity
> of Ouray, Colorado: Colorado Geological Survey, Special Publication
> 30, 63 p., 1 pl., scale 1:24000. \[1 POLY (31)\]
>
> 12\. Junge, W.R.,1978, Geologic hazards upper Crystal River area,
> Gunnison County, Colorado: Colorado Geological Survey, Open-File
> Report 78-11, scale 1:24,000. \[1 POLY (12,16)\]
>
> 13\. Mears, A.I., 1977, Debris-flow hazard analysis and mitigation; an
> example from Glenwood Springs, Colorado: Colorado Geological Survey,
> Information Series, v. 8, 45 p. \[1 PT (13,14,45)\]
>
> 45\. Mejia-Navarro, M., Wohl, E.E. , and Oaks, S.D., 1994, Geological
> hazards, vulnerability, and risk assesment using GIS, a model for
> Glenwood Springs, Colorado: Geomorphology, v. 10, p. 331-354. \[1 PT
> (13,14,45)\]
>
> 34\. Montezuma Valley Journal, 1979, Slides on Mesa Verde: Cortez,
> Colorado, April 20, *in* Chleborad, A.F., 1997, Temperature, snowmelt,
> and the onset of spring season landslides in the central Rocky
> Mountains: U.S. Geological Survey Open-File Report 97-27, p. 3. \[1 PT
> (34,35)\]
>
> 35\. \_\_\_ 1979, Mesa Verde remains closed: Cortez, Colorado, May 2,
> *in* Chleborad, A.F., 1997, Temperature, snowmelt, and the onset of
> spring season landslides in the central Rocky Mountains: U.S.
> Geological Survey Open-File Report 97-27, p. 3 \[1 PT (34,35)\]
>
> 14\. Morris, R.N., and Weaver, M.T., 1978, Geologic hazards of the
> Glenwood Springs metropolitan area, Garfield County, Colorado:
> Colorado Geological Survey, Open-File Report 78-10, 27 p. \[1 PT
> (13,14,45)\]
>
> 32\. Pendleton, J.A., 1987, The Boulder area debris flows, *in*
> Atkinson, William A. ed., Urban Geology hazards of the Boulder area:
> Geological Society of America, Rocky Mountain Section Annual Meeting,
> 40th, Field Trip #6 Guide Book, May 6, 1987. \[1 PT (32)\]
>
> 43\. Rocky Mountain News, 1983, Mudslide blocks I-70 as rain sweeps
> state: Denver, Colorado, Aug. 15. \[1 PT (44)\]
>
> 16\. Rogers, W.P., and Rold, J.W., 1972, Engineering geologic factors
> of the Marble area, Gunnison County, Colorado: Colorado Geological
> Survey, 44 p. \[1 POLY (12,16)\]
>
> 19\. \_\_\_1975, Geologic hazards map, Idaho Springs, Clear County,
> Colorado. \[1 PT (19)\]
>
> 20\. \_\_\_1976, Geologic hazards in the Crested Butte-Gunnison area,
> Gunnison County, Colorado: Colorado Geological Survey, Information
> Service 5, 34 p. \[2 PT (20)\]
>
> 21\. \_\_\_1976, Geomorphology of geologic hazards in the Big Thompson
> Canyon area, Larimer County, Colorado, *in* The Big Thompson Flood of
> 1976: Geological Society of America, Annual Meeting, Field Trip
> Guidebook, Denver, CO, May 8-11. \[1 POLY (21)\]
>
> 22\. Soule, J.M., and Fleming, R.W., 1977, Debris avalanches and
> debris flows in Douglas County, Colorado; processes and hazards
> \[abs.\]: Geological Society of America Abstracts with Programs, v. 9,
> no. 6, p. 765. \[1 PT (22)\]
>
> 36\. Steamboat Pilot, 1982, Mud slides damage ski jumps: Steamboat
> Springs, Colorado, May 13, p. 1 *in* Chleborad, A.F., 1997,
> Temperature, snowmelt, and the onset of spring season landslides in
> the central Rocky Mountains: U.S. Geological Survey Open-File Report
> 97-27, 35 p. \[1 PT (36)\]
>
> 37\. \_\_\_1982, See me, see mudslide: Steamboat Springs, Colorado,
> May 27, p. 1 *in* Chleborad, A.F., 1997, Temperature, snowmelt, and
> the onset of spring season landslides in the central Rocky Mountains:
> U.S. Geological Survey Open-File Report 97-27, 35 p. \[1 PT (37)\]
>
> 38\. \_\_\_1984, Rising waters flood Route County: Steamboat Springs,
> Colorado, May 17, p. 1 *in* Chleborad, A.F., 1997, Temperature,
> snowmelt, and the onset of spring season landslides in the central
> Rocky Mountains: U.S. Geological Survey Open-File Report 97-27, 35 p.
> \[1 PT (38)\]
>
> 39\. \_\_\_1993, \"\...mudslide\... won\'t be the last one of the
> spring\" \[Photo Caption\]: Steamboat Springs, Colorado, May 6, p. 1
> *in* Chleborad, A.F., 1997, Temperature, snowmelt, and the onset of
> spring season landslides in the central Rocky Mountains: U.S.
> Geological Survey Open-File Report 97-27, 35 p. \[1 PT (39)\]
>
> 40\. \_\_\_ 1993, Mud slides run down ski area: Steamboat Springs,
> Colorado, May 27, p. 1 *in* Chleborad, A.F., 1997, Temperature,
> snowmelt, and the onset of spring season landslides in the central
> Rocky Mountains: U.S. Geological Survey Open-File Report 97-27, 35 p.
> \[1 PT (40)\]
>
> 42\. Stover, B.K., Cannon, S.H., and Junge, R.W., 1987, The April 30,
> 1987 Telluride Airport landslides and resultant debris flows: Colorado
> Geological Survey Department of Natural Resources Open-File Report
> 87-2, 14 p., *in* Chleborad, A.F., 1997, Temperature, snowmelt, and
> the onset of spring season landslides in the central Rocky Mountains:
> U.S. Geological Survey Open-File Report 97-27, 35 p. \[1 PT (42)\]
>
> 23\. Summer, R.M., 1976, Role of avalanches and debris flows in soil
> development, San Juan Mountains, Colorado \[abs.\]: Geological Society
> of America, Abstracts with Programs, v. 8, no. 5, p. 638. \[1 POLY
> (23)\]
>
> 41\. Telluride Times, 1984, Woman dies in mud slide; melting snow
> wrecks county roads: Telluride, Colorado, May 17, p. 1 *in* Chleborad,
> A.F., 1997, Temperature, snowmelt, and the onset of spring season
> landslides in the central Rocky Mountains: U.S. Geological Survey
> Open-File Report 97-27, 35 p. \[1 PT (41)\]
>
> 24\. U.S. Forest Service, 1982, Index of landslide problems in the San
> Juan National Forest: written commun. \[1 PT (24)\]
>
> 25\. \_\_\_1982, Index of landslide problems in the White River
> National Forest: written commun. \[2 PT (25)\]
>
> 26\. \_\_\_1982, Index of landslide problems in the Arapaho National
> Forest: written commun. \[1 PT (26)\]
>
> 27\. Wallace, R.G., 1968, Types and rates of alpine mass movement,
> west edge of Boulder County, Colorado Front Range \[abs.\]:
> Dissertation Abstracts International, v. 28, no. 12, pt. 1, p. 5086B.
> \[1 POLY (27)\]
>
> 28\. Yeend, W.E., 1973, Slow-sliding slumps, Grand Mesa, Colorado: The
> Mountain Geologist, v. 10, no. 1, p. 25-28. \[1 PT (28)\]
>
> **Georgia**
>
> 1\. Brabb, E.E., Reconnaissance field investigations in Georgia, 1982,
> 1983. \[1 PT (1)\]
>
> 3\. Clark, G.M., 1987, Debris slide and debris flow events in the
> Appalachians south of the glacial border: Geological Society of
> America Reviews in Engineering Geology, v. 7, p. 125 - 129. \[2 PT
> (3)\]
>
> 2\. Shadburn, M.L., 1982, Results of a Highway Research Board
> Questionnaire, 1953: Georgia Dept. of Highways, written commun. \[1 PT
> (2)\]
>
> 4\. Thomas, R.E., 1979, Landslides and related features of the New
> Home and Trenton Quadrangles, Georgia, Alabama, and Tennessee: U.S.
> Geological Survey Open-File Report 79-944. \[1 POLY (4)\]
>
> **Idaho**
>
> 1\. Brabb, E.E., Reconaissance field investigations in Idaho, 1982,
> 1983, 1984. \[11 PT (1)\]
>
> 6\. Breckenridge, R.M., and Adams, W.C., 1988, The Landslide Inventory
> of Idaho: Idaho Geological Survey: unpublished report. \[91 PT (6)\]
>
> 3\. Day, N.F., and Megahan, W.F., 1975, Landslide occurrence on the
> Clearwater National Forest: U.S. Forest Service, Clearwater National
> Forest, Idaho, 6 p., appendices. \[6 POLY (3)\]
>
> 4\. \_\_\_1976, Landslide occurrence on mountainous terrain in
> north-central Idaho; a progress report, 1974-1975: 14th Annual
> Engineering Geology and Soils Symposium, Proceedings, p. 85-97. \[1 PT
> (4)\]
>
> **Illinois**
>
> 1\. Hester, N.C., and DuMontelle, P.B., 1971, Pleistocene mudflow
> along the Shelbyville Moraine Front, Macon County, Illinois, *in*
> Till; a Symposium: Ohio State University Press, Columbus, OH, p.
> 367-382. \[1 PT (1)\]
>
> 2\. Hunt, S.R., Regional geologic control in a landslide area along
> the Illinois River Valley \[abs.\]: Geological Society of America,
> Abstracts with Programs, v. 6, no. 6, p. 517. \[3 PT (2)\]
>
> **Kentucky**
>
> 1\. Clark, G.M., 1987, Debris slide and debris flow events in the
> Appalachians south of the glacial border: Geological Society of
> America Reviews in Engineering Geology, v. 7, p. 125 - 129. \[2 PT
> (1)\]
>
> 2\. Outerbridge, W.F., 1982, Landslides and related features of the
> Artemus, KY quadrangle: U.S. Geological Survey Open-File Report
> 82-0422, scale 1:24,000. \[1 POLY (2)\]
>
> 3\. \_\_\_1979, Landslides and related features of the Bar Creek, KY
> quadrangle: U.S. Geological Survey Open-File Report 79-714, scale
> 1:24,000. \[1 POLY (3)\]
>
> 9\. \_\_\_1979, Landslides and related features of the Big Creek, KY
> quadrangle: U.S. Geological Survey Open-File Report 79-714, scale
> 1:24,000. \[1 POLY (9)\]
>
> 10\. \_\_\_1979, Landslides and related features of the Blackwater, KY
> quadrangle: U.S. Geological Survey Open-File Report 79-714, scale
> 1:24,000. \[1 POLY (10)\]
>
> 11\. \_\_\_1979, Landslides and related features of the Blackey, KY
> quadrangle: U.S. Geological Survey Open-File Report 79-714, scale
> 1:24,000. \[1 POLY (11)\]
>
> 13\. \_\_\_1979, Landslides and related features of the Booneville, KY
> quadrangle: U.S. Geological Survey Open-File Report 79-714, scale
> 1:24,000. \[1 POLY (13)\]
>
> 15\. \_\_\_1979, Landslides and related features of the Buckhorn, KY
> quadrangle: U.S. Geological Survey Open-File Report 79-714, scale
> 1:24,000. \[1 POLY (15)\]
>
> 18\. \_\_\_1979, Landslides and related features of the Canoe, KY
> quadrangle: U.S. Geological Survey Open-File Report 79-714, scale
> 1:24,000. \[1 POLY (18)\]
>
> 19\. \_\_\_1979, Landslides and related features of the Carrie, KY
> quadrangle: U.S. Geological Survey Open-File Report 79-714, scale
> 1:24,000. \[1 POLY (19)\]
>
> 20\. \_\_\_1979, Landslides and related features of the Cowcreek, KY
> quadrangle: U.S. Geological Survey Open-File Report 79-714, scale
> 1:24,000. \[1 POLY (20)\]
>
> 21\. \_\_\_1979, Landslides and related features of the Creekville, KY
> quadrangle: U.S. Geological Survey Open-File Report 79-714, scale
> 1:24,000. \[1 POLY (21)\]
>
> 22\. \_\_\_1979, Landslides and related features of the Cutshin, KY
> quadrangle: U.S. Geological Survey Open-File Report 79-714, scale
> 1:24,000. \[1 POLY (22)\]
>
> 25\. \_\_\_1979, Landslides and related features of the Dorton, KY
> quadrangle: U.S. Geological Survey Open-File Report 79-714, scale
> 1:24,000. \[1 POLY (25)\]
>
> 26\. \_\_\_1979, Landslides and related features of the Elkhorn City,
> KY quadrangle: U.S. Geological Survey Open-File Report 79-714, scale
> 1:24,000. \[1 POLY (26)\]
>
> 39\. \_\_\_1979, Landslides and related features of the Lick Creek, KY
> quadrangle: U.S. Geological Survey Open-File Report 79-714, scale
> 1:24,000. \[1 POLY (39)\]
>
> 40\. \_\_\_1979, Landslides and related features of the Leatherwood,
> KY quadrangle: U.S. Geological Survey Open-File Report 79-714, scale
> 1:24,000. \[1 POLY (40)\]
>
> 41\. \_\_\_1979, Landslides and related features of the Krypton, KY
> quadrangle: U.S. Geological Survey Open-File Report 79-714, scale
> 1:24,000. \[1 POLY (41)\]
>
> 42\. \_\_\_1979, Landslides and related features of the Kite, KY
> quadrangle: U.S. Geological Survey Open-File Report 79-714, scale
> 1:24,000. \[1 POLY (42)\]
>
> 43\. \_\_\_1979, Landslides and related features of the Jenkins West,
> KY quadrangle: U.S. Geological Survey Open-File Report 79-714, scale
> 1:24,000. \[1 POLY (43)\]
>
> 44\. \_\_\_1979, Landslides and related features of the Jamboree, KY
> quadrangle: U.S. Geological Survey Open-File Report 79-714, scale
> 1:24,000. \[1 POLY (44)\]
>
> 45\. \_\_\_1979, Landslides and related features of the Hyden West, KY
> quadrangle: U.S. Geological Survey Open-File Report 79-714, scale
> 1:24,000. \[1 POLY (45)\]
>
> 46\. \_\_\_1979, Landslides and related features of the Hyden East, KY
> quadrangle: U.S. Geological Survey Open-File Report 79-714, scale
> 1:24,000. \[1 POLY (46)\]
>
> 47\. \_\_\_1979, Landslides and related features of the Hazard South,
> KY quadrangle: U.S. Geological Survey Open-File Report 79-714, scale
> 1:24,000. \[1 POLY (47)\]
>
> 48\. \_\_\_1979, Landslides and related features of the Hoskinston, KY
> quadrangle: U.S. Geological Survey Open-File Report 79-714, scale
> 1:24,000. \[1 POLY (48)\]
>
> 49\. \_\_\_1979, Landslides and related features of the Hindman, KY
> quadrangle: U.S. Geological Survey Open-File Report 79-714, scale
> 1:24,000. \[1 POLY (49)\]
>
> 50\. \_\_\_1979, Landslides and related features of the Hima, KY
> quadrangle: U.S. Geological Survey Open-File Report 79-714, scale
> 1:24,000. \[1 POLY (50)\]
>
> 51\. \_\_\_1979, Landslides and related features of the Hellier, KY
> quadrangle: U.S. Geological Survey Open-File Report 79-714, scale
> 1:24,000. \[1 POLY (51)\]
>
> 52\. \_\_\_1979, Landslides and related features of the Hazard North,
> KY quadrangle: U.S. Geological Survey Open-File Report 79-714, scale
> 1:24,000. \[1 POLY (52)\]
>
> 53\. \_\_\_1979, Landslides and related features of the Handshoe, KY
> quadrangle: U.S. Geological Survey Open-File Report 79-714, scale
> 1:24,000. \[1 POLY (53)\]
>
> 54\. \_\_\_1979, Landslides and related features of the Haddix, KY
> quadrangle: U.S. Geological Survey Open-File Report 79-714, scale
> 1:24,000. \[1 POLY (54)\]
>
> 68\. \_\_\_1979, Landslides and related features of the Portersburg,
> KY quadrangle: U.S. Geological Survey Open-File Report 79-714, scale
> 1:24,000. \[1 POLY (68)\]
>
> 69\. \_\_\_1979, Landslides and related features of the Pikeville, KY
> quadrangle: U.S. Geological Survey Open-File Report 79-714, scale
> 1:24,000. \[1 POLY (69)\]
>
> 70\. \_\_\_1979, Landslides and related features of the Oneida, KY
> quadrangle: U.S. Geological Survey Open-File Report 79-714, scale
> 1:24,000. \[1 POLY (70)\]
>
> 71\. \_\_\_1979, Landslides and related features of the Ogle, KY
> quadrangle: U.S. Geological Survey Open-File Report 79-714, scale
> 1:24,000. \[1 POLY (71)\]
>
> 72\. \_\_\_1979, Landslides and related features of the Noble, KY
> quadrangle: U.S. Geological Survey Open-File Report 79-714, scale
> 1:24,000. \[1 POLY (72)\]
>
> 73\. \_\_\_1979, Landslides and related features of the Mistletoe, KY
> quadrangle: U.S. Geological Survey Open-File Report 79-714, scale
> 1:24,000. \[1 POLY (73)\]
>
> 74\. \_\_\_1979, Landslides and related features of the Millard, KY
> quadrangle: U.S. Geological Survey Open-File Report 79-714, scale
> 1:24,000. \[1 POLY (74)\]
>
> 75\. \_\_\_1979, Landslides and related features of the McKee, KY
> quadrangle: U.S. Geological Survey Open-File Report 79-714, scale
> 1:24,000. \[1 POLY (75)\]
>
> 76\. \_\_\_1979, Landslides and related features of the McDowell, KY
> quadrangle: U.S. Geological Survey Open-File Report 79-714, scale
> 1:24,000. \[1 POLY (76)\]
>
> 77\. \_\_\_1979, Landslides and related features of the Maulden, KY
> quadrangle: U.S. Geological Survey Open-File Report 79-714, scale
> 1:24,000. \[1 POLY (77)\]
>
> 78\. \_\_\_1979, Landslides and related features of the Mayking, KY
> quadrangle: U.S. Geological Survey Open-File Report 79-714, scale
> 1:24,000. \[1 POLY (78)\]
>
> 79\. \_\_\_1979, Landslides and related features of the Manchester, KY
> quadrangle: U.S. Geological Survey Open-File Report 79-714, scale
> 1:24,000. \[1 POLY (79)\]
>
> 104\. \_\_\_1979, Landslides and related features of the Whitesburg,
> KY quadrangle: U.S. Geological Survey Open-File Report 79-714, scale
> 1:24,000. \[1 POLY (104)\]
>
> 105\. \_\_\_1979, Landslides and related features of the Wheelwright,
> KY quadrangle: U.S. Geological Survey Open-File Report 79-714, scale
> 1:24,000. \[1 POLY (105)\]
>
> 106\. \_\_\_1979, Landslides and related features of the Wayland, KY
> quadrangle: U.S. Geological Survey Open-File Report 79-714, scale
> 1:24,000. \[1 POLY (106)\]
>
> 107\. \_\_\_1979, Landslides and related features of the Vicco, KY
> quadrangle: U.S. Geological Survey Open-File Report 79-714, scale
> 1:24,000. \[1 POLY (107)\]
>
> 108\. \_\_\_1979, Landslides and related features of the Vest, KY
> quadrangle: U.S. Geological Survey Open-File Report 79-714, scale
> 1:24,000. \[1 POLY (108)\]
>
> 109\. \_\_\_1979, Landslides and related features of the Tyner, KY
> quadrangle: U.S. Geological Survey Open-File Report 79-714, scale
> 1:24,000. \[1 POLY (109)\]
>
> 110\. \_\_\_1979, Landslides and related features of the Tilford, KY
> quadrangle: U.S. Geological Survey Open-File Report 79-714, scale
> 1:24,000. \[1 POLY (110)\]
>
> 111\. \_\_\_1979, Landslides and related features of the Sturgeon, KY
> quadrangle: U.S. Geological Survey Open-File Report 79-714, scale
> 1:24,000. \[1 POLY (111)\]
>
> 112\. \_\_\_1979, Landslides and related features of the Roxana, KY
> quadrangle: U.S. Geological Survey Open-File Report 79-714, scale
> 1:24,000. \[1 POLY (112)\]
>
> 4\. \_\_\_1982, Landslides and related features of the Barbourville,
> KY quadrangle: U.S. Geological Survey Open-File Report 82-0422, scale
> 1:24,000. \[1 POLY (4)\]
>
> 5\. \_\_\_1982, Landslides and related features of the Balkan, KY
> quadrangle: U.S. Geological Survey Open-File Report 82-0422, scale
> 1:24,000. \[1 POLY (5)\]
>
> 6\. \_\_\_1982, Landslides and related features of the Beattyville, KY
> quadrangle: U.S. Geological Survey Open-File Report 82-51, scale
> 1:24,000. \[1 POLY (6)\]
>
> 7\. \_\_\_1982, Landslides and related features of the Bellfry, KY
> quadrangle: U.S. Geological Survey Open-File Report 82-51, scale
> 1:24,000. \[1 POLY (7)\]
>
> 8\. \_\_\_1982, Landslides and related features of the Beverly, KY
> quadrangle: U.S. Geological Survey Open-File Report 82-0422, scale
> 1:24,000. \[1 POLY (8)\]
>
> 12\. \_\_\_1982, Landslides and related features of the Bledsoe, KY
> quadrangle: U.S. Geological Survey Open-File Report 82-0422, scale
> 1:24,000. \[1 POLY (12)\]
>
> 14\. \_\_\_1982, Landslides and related features of the Broad Bottom,
> KY quadrangle: U.S. Geological Survey Open-File Report 82-51, scale
> 1:24,000. \[1 POLY (14)\]
>
> 16\. \_\_\_1982, Landslides and related features of the Campton, KY
> quadrangle: U.S. Geological Survey Open-File Report 82-51, scale
> 1:24,000. \[1 POLY (16)\]
>
> 17\. \_\_\_1982, Landslides and related features of the Cannel City,
> KY quadrangle: U.S. Geological Survey Open-File Report 82-51, scale
> 1:24,000. \[1 POLY (17)\]
>
> 23\. \_\_\_1982, Landslides and related features of the David, KY
> quadrangle: U.S. Geological Survey Open-File Report 82-51, scale
> 1:24,000. \[1 POLY (23)\]
>
> 24\. \_\_\_1982, Landslides and related features of the Dingus, KY
> quadrangle: U.S. Geological Survey Open-File Report 82-51, scale
> 1:24,000. \[1 POLY (24)\]
>
> 27\. \_\_\_1982, Landslides and related features of the Ezel, KY
> quadrangle: U.S. Geological Survey Open-File Report 82-51, scale
> 1:24,000. \[1 POLY (27)\]
>
> 28\. \_\_\_1982, Landslides and related features of the Louellen, KY
> quadrangle: U.S. Geological Survey Open-File Report 82-51, scale
> 1:24,000. \[1 POLY (28)\]
>
> 29\. \_\_\_1982, Landslides and related features of the Levee, KY
> quadrangle: U.S. Geological Survey Open-File Report 82-51, scale
> 1:24,000. \[1 POLY (29)\]
>
> 30\. \_\_\_1982, Landslides and related features of the Lenox, KY
> quadrangle: U.S. Geological Survey Open-File Report 82-51, scale
> 1:24,000. \[1 POLY (30)\]
>
> 31\. \_\_\_1982, Landslides and related features of the Leighton, KY
> quadrangle: U.S. Geological Survey Open-File Report 82-51, scale
> 1:24,000. \[1 POLY (31)\]
>
> 32\. \_\_\_1982, Landslides and related features of the Lee City, KY
> quadrangle: U.S. Geological Survey Open-File Report 82-51, scale
> 1:24,000. \[1 POLY (32)\]
>
> 33\. \_\_\_1982, Landslides and related features of the Landsaw, KY
> quadrangle: U.S. Geological Survey Open-File Report 82-51, scale
> 1:24,000. \[1 POLY (33)\]
>
> 34\. \_\_\_1982, Landslides and related features of the Lancer, KY
> quadrangle: U.S. Geological Survey Open-File Report 82-51, scale
> 1:24,000. \[1 POLY (34)\]
>
> 35\. \_\_\_1982, Landslides and related features of the Jackson, KY
> quadrangle: U.S. Geological Survey Open-File Report 82-51, scale
> 1:24,000. \[1 POLY (35)\]
>
> 36\. \_\_\_1982, Landslides and related features of the Ivyton, KY
> quadrangle: U.S. Geological Survey Open-File Report 82-51, scale
> 1:24,000. \[1 POLY (36)\]
>
> 37\. \_\_\_1982, Landslides and related features of the Irvine, KY
> quadrangle: U.S. Geological Survey Open-File Report 82-51, scale
> 1:24,000. \[1 POLY (37)\]
>
> 38\. \_\_\_1982, Landslides and related features of the Inez, KY
> quadrangle: U.S. Geological Survey Open-File Report 82-51, scale
> 1:24,000. \[1 POLY (38)\]
>
> 55\. \_\_\_1982, Landslides and related features of the Helton, KY
> quadrangle: U.S. Geological Survey Open-File Report 82-0422, scale
> 1:24,000. \[1 POLY (55)\]
>
> 56\. \_\_\_1982, Landslides and related features of the Frakes, KY
> quadrangle: U.S. Geological Survey Open-File Report 82-0422, scale
> 1:24,000. \[1 POLY (56)\]
>
> 57\. \_\_\_1982, Landslides and related features of the Heidelberg, KY
> quadrangle: U.S. Geological Survey Open-File Report 82-51, scale
> 1:24,000. \[1 POLY (57)\]
>
> 58\. \_\_\_1982, Landslides and related features of the Hazel Green,
> KY quadrangle: U.S. Geological Survey Open-File Report 82-51, scale
> 1:24,000. \[1 POLY (58)\]
>
> 59\. \_\_\_1982, Landslides and related features of the Harold, KY
> quadrangle: U.S. Geological Survey Open-File Report 82-51, scale
> 1:24,000. \[1 POLY (59)\]
>
> 60\. \_\_\_1982, Landslides and related features of the Guage, KY
> quadrangle: U.S. Geological Survey Open-File Report 82-51, scale
> 1:24,000. \[1 POLY (60)\]
>
> 61\. \_\_\_1982, Landslides and related features of the Frenchburg, KY
> quadrangle: U.S. Geological Survey Open-File Report 82-51, scale
> 1:24,000. \[1 POLY (61)\]
>
> 62\. \_\_\_1982, Landslides and related features of the Quicksand, KY
> quadrangle: U.S. Geological Survey Open-File Report 82-51, scale
> 1:24,000. \[1 POLY (62)\]
>
> 63\. \_\_\_1982, Landslides and related features of the Prestonburg,
> KY quadrangle: U.S. Geological Survey Open-File Report 82-51, scale
> 1:24,000. \[1 POLY (63)\]
>
> 64\. \_\_\_1982, Landslides and related features of the Pomeroyton, KY
> quadrangle: U.S. Geological Survey Open-File Report 82-51, scale
> 1:24,000. \[1 POLY (64)\]
>
> 65\. \_\_\_1982, Landslides and related features of the Paintsville,
> KY quadrangle: U.S. Geological Survey Open-File Report 82-51, scale
> 1:24,000. \[1 POLY (65)\]
>
> 66\. \_\_\_1982, Landslides and related features of the Oil Springs,
> KY quadrangle: U.S. Geological Survey Open-File Report 82-51, scale
> 1:24,000. \[1 POLY (66)\]
>
> 67\. \_\_\_1982, Landslides and related features of the Offutt, KY
> quadrangle: U.S. Geological Survey Open-File Report 82-51, scale
> 1:24,000. \[1 POLY (67)\]
>
> 80\. \_\_\_1982, Landslides and related features of the Nolansburg, KY
> quadrangle: U.S. Geological Survey Open-File Report 82-0422, scale
> 1:24,000. \[1 POLY (80)\]
>
> 81\. \_\_\_1982, Landslides and related features of the Middlesboro
> North, KY quadrangle: U.S. Geological Survey Open-File Report 82-0422,
> scale 1:24,000. \[1 POLY (81)\]
>
> 82\. \_\_\_1982, Landslides and related features of the Pineville, KY
> quadrangle: U.S. Geological Survey Open-File Report 82-0422, scale
> 1:24,000. \[1 POLY (82)\]
>
> 83\. \_\_\_1982, Landslides and related features of the Milo, KY
> quadrangle: U.S. Geological Survey Open-File Report 82-51, scale
> 1:24,000. \[1 POLY (83)\]
>
> 84\. \_\_\_1982, Landslides and related features of the Meta, KY
> quadrangle: U.S. Geological Survey Open-File Report 82-51, scale
> 1:24,000. \[1 POLY (84)\]
>
> 85\. \_\_\_1982, Landslides and related features of the Means, KY
> quadrangle: U.S. Geological Survey Open-File Report 82-51, scale
> 1:24,000. \[1 POLY (85)\]
>
> 86\. \_\_\_1982, Landslides and related features of the Martin, KY
> quadrangle: U.S. Geological Survey Open-File Report 82-51, scale
> 1:24,000. \[1 POLY (86)\]
>
> 87\. \_\_\_1982, Landslides and related features of the White Oak, KY
> quadrangle: U.S. Geological Survey Open-File Report 82-51, scale
> 1:24,000. \[1 POLY (87)\]
>
> 88\. \_\_\_1982, Landslides and related features of the West Liberty,
> KY quadrangle: U.S. Geological Survey Open-File Report 82-51, scale
> 1:24,000. \[1 POLY (88)\]
>
> 89\. \_\_\_1982, Landslides and related features of the Varney, KY
> quadrangle: U.S. Geological Survey Open-File Report 82-51, scale
> 1:24,000. \[1 POLY (89)\]
>
> 90\. \_\_\_1982, Landslides and related features of the Tiptop, KY
> quadrangle: U.S. Geological Survey Open-File Report 82-51, scale
> 1:24,000. \[1 POLY (90)\]
>
> 91\. \_\_\_1982, Landslides and related features of the Thomas, KY
> quadrangle: U.S. Geological Survey Open-File Report 82-51, scale
> 1:24,000. \[1 POLY (91)\]
>
> 92\. \_\_\_1982, Landslides and related features of the Tallega, KY
> quadrangle: U.S. Geological Survey Open-File Report 82-51, scale
> 1:24,000. \[1 POLY (92)\]
>
> 93\. \_\_\_1982, Landslides and related features of the Stanton, KY
> quadrangle: U.S. Geological Survey Open-File Report 82-51, scale
> 1:24,000. \[1 POLY (93)\]
>
> 94\. \_\_\_1982, Landslides and related features of the Slade, KY
> quadrangle: U.S. Geological Survey Open-File Report 82-51, scale
> 1:24,000. \[1 POLY (94)\]
>
> 95\. \_\_\_1982, Landslides and related features of the Sitka, KY
> quadrangle: U.S. Geological Survey Open-File Report 82-51, scale
> 1:24,000. \[1 POLY (95)\]
>
> 96\. \_\_\_1982, Landslides and related features of the Seitz, KY
> quadrangle: U.S. Geological Survey Open-File Report 82-51, scale
> 1:24,000. \[1 POLY (96)\]
>
> 97\. \_\_\_1982, Landslides and related features of the Scranton, KY
> quadrangle: U.S. Geological Survey Open-File Report 82-51, scale
> 1:24,000. \[1 POLY (97)\]
>
> 98\. \_\_\_1982, Landslides and related features of the Salyersville
> South, KY quadrangle: U.S. Geological Survey Open-File Report 82-51,
> scale 1:24,000. \[1 POLY (98)\]
>
> 99\. \_\_\_1982, Landslides and related features of the Salyersville
> North, KY quadrangle: U.S. Geological Survey Open-File Report 82-51,
> scale 1:24,000. \[1 POLY (99)\]
>
> 100\. \_\_\_1982, Landslides and related features of the Richardson,
> KY quadrangle: U.S. Geological Survey Open-File Report 82-51, scale
> 1:24,000. \[1 POLY (100)\]
>
> 101\. \_\_\_1982, Landslides and related features of the Wallins
> Creek, KY quadrangle: U.S. Geological Survey Open-File Report 82-0422,
> scale 1:24,000. \[1 POLY (101)\]
>
> 102\. \_\_\_1982, Landslides and related features of the Varilla, KY
> quadrangle: U.S. Geological Survey Open-File Report 82-0422, scale
> 1:24,000. \[1 POLY (102)\]
>
> 103\. \_\_\_1982, Landslides and related features of the Scalf, KY
> quadrangle: U.S. Geological Survey Open-File Report 82-0422, scale
> 1:24,000. \[1 POLY (103)\]
>
> 113\. \_\_\_1982, Landslides and related features of the Fount, KY
> quadrangle: U.S. Geological Survey Open-File Report 82-0422, scale
> 1:24,000. \[1 POLY (113)\]
>
> 114\. \_\_\_1982, Landslides and related features of the Cobhill, KY
> quadrangle: U.S. Geological Survey Open-File Report 82-51, scale
> 1:24,000. \[1 POLY (114)\]
>
> **Massachusetts**
>
> 1\. Cleland, H.F., 1902, The Landslides of Mt. Greylock and
> Briggsville, Mass: Geology, vol. 10, p. 513. \[1PT (1)\]
>
> **Montana**
>
> 1\. Brabb, E.E., Reconaissance field investigations in Montana, 1982,
> 1985. \[4 PT (1)\]
>
> 2\. Bartholomew, M.J., 1984, compilation of 1004 landslides from the
> literature pertaining to western Montana: Montana Bureau of Mines and
> Geology, unpublished report. \[17 PT (2)\]
>
> 3\. Butler, D.R., 1976, Aerial-photo interpretation of mass-wasting
> deposits, Glacier National Park, Montana \[abs.\]: American Quaternary
> Association, National Conference Abstracts, v. 4, p. 127. \[1 PT (3)\]
>
> 4\. \_\_\_1983, Observations of historic high magnitude mass
> movements, Glacier National Park, Montana: The Mountain Geologist, v.
> 20, no. 2, p. 59-62. \[1 PT (4)\]
>
> 8\. \_\_\_1989, Glacial hazards in Glacier National Park, Montana:
> Physical Geography v. 10, no. 1, p. 53-71. \[1 PT (8)\]
>
> 5\. Cox, W.E., 1977, The 1975 Goldcreek, Montana, landslide: 15th
> Annual Engineering Geology, Soils Engineering Symposium, Proceedings,
> p. 149-159. \[1 PT (5)\]
>
> 6\. Padden, J.W., 1982, Map showing two landslides in the Helena
> National Forest: written commun. 8/17/82. \[1 PT (6)\]
>
> 7\. Parret, C., 1988, Fire-related debris-flows in the Beaver Creek
> drainage, Lewis and Clark County, Montana, *in* Subitzky, S., ed.,
> Selected Papers in the hydrologic sciences: U.S. Geological Survey
> Water-Supply Paper 2330, p. 57-67. \[1 POLY (7)\]
>
> **Nevada**
>
> 1\. Bell, J., 1976, notes on the Hidden Valley mudflow of August,
> 1976, written commun. \[1 PT (1)\]
>
> 2\. Blackwelder, E., 1928, Mudflow as a geologic agent in semiarid
> mountains: Geological Society of America Bulletin, v. 39, no. 2, p.
> 465-484. \[1 PT (2)\]
>
> 3\. Brabb, E.E., Reconaissance field investigations in Nevada, 1982,
> 1983, 1984, 1987. \[15 PT (3), 1 POLY (3)\]
>
> 4\. Bluck, B.J., 1964, Sedimentation of an alluvial fan in southern
> Nevada: Journal of Sedimentary Petrology, v. 34, no. 2, p. 395-400
> (mud flow). \[1 PT (4)\]
>
> 10\. Coe, J.A., Glancy, PA, and Whitney, J.W., 1997, Volumetric
> analysis and hydrologic characterization of a modern debris flow near
> Yucca Mountain, Nevada: Geomorphology, v. 20, p. 11-28. \[1 PT (10)\]
>
> 5\. Glancy, P.A., 1969, A mudflow in the Second Creek drainage, Lake
> Tahoe basin, Nevada, and its relation to sedimentation and
> urbanization: U.S. Geological Survey Professional Paper 650-C, p.
> C195-C200. \[1 PT (5)\]
>
> 6\. \_\_\_1985, The Ophir Creek debris flood of May 30, 1983; a real
> test of geohydrologic hazard mapping \[abs.\], *in* Bowles, D. S.,
> ed., Delineation of landslide, flash flood and debris flow hazards in
> Utah; Proceedings of a specialty conference: Utah Water Research
> Laboratory, Logan, Utah, June 14-15, 1984, p. 195-196. \[1 PT (6,8)\]
>
> 9\. Grose, T.L.T., 1984, Geologic Map of the State Line Peak
> Quadrangle, Nevada - California: Nevada Bureau of Mines and Geology,
> Map 82, scale 1:24,000. \[1 PT (9)\]
>
> 7\. Katzer, T.J., and Schroer, C.V., 1981, Flood and related debris
> flow hazards map, Carson City Quadrangle: Nevada Bureau of Mines and
> Geology, Urban Map, scale 1:24,000. \[1 POLY (7)\]
>
> 8\. Watters, R.J., 1983, A landslide induced waterflood-debris flow:
> International Association of Engineering Geology Bulletin (Paris,
> France), v. 28, p. 177-182. \[1 PT (8)\]
>
> **New Hampshire**
>
> 1\. Flaccus, E., 1958, White Mountain landslides: Appalachia, v. 24,
> no. 12, p. 175-191. \[1 PT (1,2), 1 PT (1,3)\]
>
> 2\. Hitchcock, C.H., 1885, The recent landslide in the White
> Mountains: Science, vol. 6, no. 130, p. 85-87. \[1 PT (1,2)\]
>
> 3\. Pirsson, L.V., and Rice, W.N., 1911, Geology of Tripyramid
> Mountain: American Journal of Science, 4th Series, v. 31, p. 269-274.
> \[1 PT (1,3)\]
>
> **New Jersey**
>
> 3\. Asbury Park Press, 1999, Digging into mudslide mystery, Highlands,
> New Jersey, January 5. \[1 PT (2,3,4)\]
>
> 4\. \_\_\_1999, History repeats in Highlands, Highlands, New Jersey,
> January 11. \[1 PT (2,3,4)\]
>
> 2\. Minard, J.P., 1974, Slump blocks in the Atlantic Highlands of New
> Jersey, U.S. Geological Survey Professional Paper 898. \[1 PT
> (2,3,4)\]
>
> 1\. Star-Ledger, 1996, Mudslide wipes out home, Sparta, New Jersey,
> January 20. \[1 PT (1)\]
>
> **New Mexico**
>
> 5\. Cardinali, M., Guzzetti, F., and Brabb, E.E., 1990, Preliminary
> maps showing landslide deposits and related features in New Mexico:
> U.S. Geological Survey Open-File Report 90-293, 4 map sheets, scale
> 1:500,000. \[3402 PT (5)\]
>
> 1\. Hunt, C.B., 1977, Surficial geology of northeast New Mexico,
> geologic map 40: New Mexico Bureau of Mines and Mineral Resources,
> Division of New Mexico Institute of Mining and Technology, scale
> 1:500,000. \[2 PT (1)\]
>
> 2\. \_\_\_1978, Surficial geology of northwest New Mexico, geologic
> map 43: New Mexico Bureau of Mines and Mineral Resources, Division of
> New Mexico Institute of Mining and Technology; scale 1:500,000. \[3 PT
> (2)\]
>
> 3\. Leach, L., 1982, More mudslides predicted in Red River area:
> Albuquerque Journal, July 23, 1982. \[1 PT (3)\]
>
> 4\. Watson, R.A., and Wright, H.E., Jr., 1963, Landslides on the east
> flank of the Chuska Mountains, northeastern New Mexico: American
> Journal of Science, v. 261, no. 6, p. 525-548. \[1 PT (4)\]
>
> **New York**
>
> 1\. Bougucki, D.J., 1977, Debris slide hazard in the Adirondack
> Province of New York State: Environmental Geology, v. 1, p. 317-328.
> \[1 PT (1)\]
>
> 3\. Fickies, R.H., and Brabb, E.E., 1989, Landslide inventory map of
> New York: New York State Museum - Geological Survey Circular 52, scale
> 1:500,000. \[69 PT (3)\]
>
> 2\. Renwick, W.H., 1977, Erosion caused by intense rainfall in a small
> catchment in New York State: Geology, v. 5, p. 361-364. \[1 PT (2)\]
>
> **North Carolina**
>
> 7\. Clark, G.M., 1987, Debris slide and debris flow events in the
> Appalachians south of the glacial border: Geological Society of
> America Reviews in Engineering Geology, v. 7, p. 125 - 129. \[19 PT
> (7)\]
>
> 1\. Glass, F.R., 1981, Unstable rock slopes along Interstate 40
> through Pigeon River Gorge, Haywood County, North Carolina: Annual
> Highway Geology Symposium, 32nd Proceedings, Gatlinburg, TN, 15 p. \[1
> PT (1)\]
>
> 3\. Gryta, J.J., and Bartholomew, M.S., 1977, Evidence for late
> Cenozoic debris-avalanche type deposits in Watuga County, North
> Carolina: Geological Society of America Southeastern Section,
> Abstracts with Programs, p. 142-143. \[1 PT (3,4)\]
>
> 4\. \_\_\_1977, Evidence for late Cenozoic debris-avalanche type
> deposits in Watauga Co., North Carolina: Geological Society of America
> Abstracts with Programs, v. 9, no. 2, p. 142-143. \[1 PT (3,4)\]
>
> 5\. Lewis, S.E., 1983, Geologic investigations in the Blue Ridge of
> northwestern North Carolina: Carolina Geological Society Field Trip
> Guide Book (North Carolina Division of Land Resources). \[1 PT (5)\]
>
> 9\. Neary, D.G., and Swift, L.W., Jr., 1987, Rainfall threshold for
> triggering a debris avalanching event in the southern Appalachian
> Mountains: Geological Society of America Reviews in Engineering
> Geology, v. 7, p. 81 -92. \[1 POLY (6,9)\]
>
> 6\. Pomeroy, J.S., 1991, Map showing late 1977 debris flows near
> Asheville, western North Carolina: U.S. Geological Survey Open-File
> Report 91-334, scale 1:24,000. \[1 POLY (6,9)\]
>
> 8\. Water Resources Branch, 1949, Floods of August 1940 in the
> southeastern states: U.S. Geological Survey Water-Supply Paper 1066.
> \[1 POLY (8)\]
>
> 10\. Gardner, C.H., 1999, written commun.
>
> **Ohio**
>
> 2\. Davies, W.E., and Ohlmacher, G.C., 1978, Landslides and related
> features of the Knoxville, Ohio - West Virginia quadrangle: U.S.
> Geological Survey Open-File Report 78-1057. \[1 POLY (2)\]
>
> 1\. Hackman, R.J., 1978, Landslides and related features of the Round
> Bottom, Ohio - West Virginia quadrangle: U.S. Geological Survey
> Open-File Report 78-1056. \[1 POLY (1)\]
>
> **Oregon**
>
> 11\. Anonymous, 1974, Mudslide at Canyonville Oregon: Engineering News
> Record, 1974. \[1 PT (11)\]
>
> 1\. Beaulieu, J.D., 1973, Environmental geology of the inland
> Tillamook and Clatsop Counties, Oregon: Oregon Department of Geology
> and Mineral Industries, Bulletin 79, scale 1:62,500. \[1 PT (1)\]
>
> 2\. \_\_\_1977, Geologic hazards of parts of northern Hood River,
> Wasco, and Sherman Counties, Oregon: Oregon Department of Geology and
> Mineral Industries Bulletin 91, scale 1:63:360. \[2 PT (2)\]
>
> 3\. \_\_\_1978, Surficial geologic hazard concepts for Oregon: Oregon
> Department of Geology and Mineral Industries Bulletin, v. 40, no. 3,
> p. 41-56. \[1 PT (3)\]
>
> 4\. Beaulieu, J.D., and Hughes, P.W., 1974, Environmental geology of
> western Linn County, Oregon: Oregon Department of Geology and Mineral
> Industries, Bulletin 84, scale 1:62,500. \[1 PT (4)\]
>
> 5\. \_\_\_1975, Environmental geology of western Coos and Douglas
> Counties, Oregon: Oregon Department of Geology and Mineral Industries
> Bulletin 87 \[3 PT (5)\]
>
> 6\. Bela, J.L., 1979, Geologic hazards of eastern Benton County,
> Oregon: Oregon Department of Geology and Mineral Industries Bulletin
> 98, \[1 PT (6)\]
>
> 7\. \_\_\_1980, Geologic hazards of eastern Benton County, Oregon
> \[abs.\]: Geological Society of America, Abstracts with Programs, v.
> 12, no. 3, p. 96. \[1 PT (7)\]
>
> 22\. Benda, L., 1984, Debris flows in the Oregon Coast Range-
> Predicting behavior and risk to fish habitats, *in* Bowles, D.S., ed.,
> Delineation of landslide, flash flood and debris flow hazards in Utah;
> Proceedings of a specialty conference: Utah Water Research Laboratory,
> Logan, Utah, June 14-15, 1984, p. 153-162. \[1 PT (22)\]
>
> 23\. \_\_\_1990, Influence of debris flows on channels and valley
> floors in the Oregon Coast Ranges: Earth Surface Processes and
> Landforms, v. 15, no. 5, p. 457-446. \[1 POLY (23)\]
>
> 8\. Brabb, E.E., Reconaissance field investigtaions in Oregon, 1982,
> 1985. \[4 PT (8)\]
>
> 10\. Dyrness, C.T., 1967, Mass soil movements in the H. J. Andrews
> experimental forest: U.S. Forest Service, Pacific Northwest Forest and
> Range Experiment Station, Research Paper PNW-42, 13 p. \[1 PT (10)\]
>
> 12\. Friday, J., 1983, Debris flow hazard assessment for the Oregon
> Caves National Monument: U.S. Geological Survey, Water Resources
> Investigations Report 85-4100, 20 p. \[1 PT (12)\]
>
> 24\. Gallino, G.L., 1985, Pollalie Creek debris flow and subsequent
> dam-break flood of 1980, East Fork Hood River basin, Oregon: U.S.
> Geological Survey Water-Supply Paper 2273. \[1 PT (24)\]
>
> 13\. Hicks, B.A., 1982, Geology, geomorphology, and dynamics of mass
> movement in parts of the middle Santiam River drainage, West Cascades,
> Oregon: Oregon State University, unpublished M.S. thesis, 168 p. \[1
> PT (13)\]
>
> 14\. Hicks, B.G., 1976, Upper Applegate River Basin landslide study -
> Rogue River National Forest: U.S. Corp. of Engineers, 33 p., scale
> 1:62,500. \[1 POLY (14)\]
>
> 15\. Higgins, J.D., Naik, B., Mills, S.V., Copp, H., Roberson, J.A.,
> 1983, The mechanics of mudflows: State of Washington, Water Research
> Center Report 51, 116 p. \[1 PT (15,18)\]
>
> 25\. Johnson, S.E., 1997, 1996 Tumult Creek debris flows and debris
> avalanches in the Columbia River Gorge east of Portland, Oregon, *in*
> Chen, Cheng-lung, ed., First International Symposium on debris-flow
> hazards mitigation: New York, American Society of Civil Engineers, p.
> 395 - 404. \[1 PT (25)\]
>
> 16\. Ketcheson, G., and Froehlich, H.A., 1978, Hydrologic factors and
> environmental impacts of mass soil movements in the Oregon Coast
> Range: Oregon State University, Corvallis, Water Resources Research
> Institute, WRRI 56, 33 p. \[1 PT (3 PT (16)\]
>
> 17\. Meyers, R., 1972, Trucker recalls slamming into muck, debris:
> Landslide, v. 1, no. 1, p. 26. \[1 PT (17)\]
>
> 18\. Schlicker, H.G., and Finlayson, C.T., 1979, Geology and geologic
> hazards of northwestern Clackamas County, Oregon: Oregon Department of
> Geology and Mineral Industries, Bulletin 99, 79 p., scale 1:24,000.
> \[4 PT (18), 1 PT (15,18)\]
>
> 20\. Swanson, F.J., and Swanston, D.N., 1977, Complex mass-movement
> terrains in the western Cascade Range, Oregon: Geological Society of
> America, Reviews in Engineering Geology, v. 3, p. 113-126. \[1 PT
> (20)\]
>
> 21\. Washington Post, 1982, Mudslide at Little Lobster Creek:
> Washington Post, March 3, 1982. \[1 PT (21)\]
>
> **Pennsylvania**
>
> 9\. Clark, G.M., 1987, Debris slide and debris flow events in the
> Appalachians south of the glacial border: Geological Society of
> America Reviews in Engineering Geology, v. 7, p. 125 - 129. \[2 PT
> (9)\]
>
> 1\. Johnson, A.M., Rahn, P.H., 1970, Mobilization of debris flows:
> Zeitschrift für Geomorphologie, v. 9, p. 168-186. \[1 PT (1)\]
>
> 2\. Pomeroy, J.S., 1979, Storm-induced landslides in the Johnstown
> area, Pennsylvania, July 19-20, 1977 \[abs.\]: Geological Society of
> America Abstracts with Programs, v. 11, no. 1, p. 49 (debris
> avalanches). \[1 PT (2,3,4)\]
>
> 11\. \_\_\_1979, Landslides and related features of the Bolivar, PA
> quadrangle: U.S. Geological Survey Open-File Report 79-1314, scale
> 1:24,000. \[1 POLY (11)\]
>
> 12\. \_\_\_1979, Landslides and related features of the Cassville, PA
> quadrangle: U.S. Geological Survey Open-File Report 79-1314, scale
> 1:24,000. \[1 POLY (12)\]
>
> 13\. \_\_\_1979, Landslides and related features of the Huntingdon, PA
> quadrangle: U.S. Geological Survey Open-File Report 79-1314, scale
> 1:24,000. \[1 POLY (13)\]
>
> 14\. \_\_\_1979, Landslides and related features of the Westline, PA
> quadrangle: U.S. Geological Survey Open-File Report 81-238, scale
> 1:24,000. \[1 POLY (14)\]
>
> 3\. \_\_\_1980, Storm-induced debris avalanching and related phenomena
> in the Johnstown area, Pennsylvania, with references to other studies
> in the Appalachians: U.S. Geological Survey Professional Paper 1191,
> 24 p. \[1 PT (2,3,4)\]
>
> 4\. \_\_\_1982, Geomorphic effects of the July 19-20, 1977, storm in a
> part of the Little Conemaugh River area northeast of Johnstown,
> Pennsylvania: Northeastern Geology, v. 4, no. 1, p. 1-9. \[1 PT
> (2,3,4)\]
>
> 5\. \_\_\_1982, Landslides in the greater Pittsburgh region,
> Pennsylvania: U.S. Geological Survey Professional Paper 1228, 48 p.
> \[1 PT (5)\]
>
> 6\. \_\_\_1983, Relict debris flows in northwestern Pennsylvania:
> Northeastern Geology, v. 5, no. 1, p. 1-7. \[11 PT (6)\]
>
> 10\. \_\_\_1984, Storm-induced slope movements at East Brady,
> northwestern Pennsylvania: U.S. Geological Survey Bulletin 1618, 16 p.
> \[1 PT (10)\]
>
> 7\. Stewart, J.E., 1952, Notable local floods of 1942-43, *in*
> Eisenlohr, W. S., ed., Floods of July 18, 1942 in North-Central
> Pennsylvania: U.S. Geological Survey, Water-Supply Paper 1134-B, p.
> 75-78. \[1 PT (7)\]
>
> 8\. Wilshusen, J.P., 1979, Geologic hazards in Pennsylvania:
> Pennsylvania Geologic Survey, Educational Series 9, p. 56. \[9 PT
> (8)\]
>
> **South Dakota**
>
> 1\. Crandell, D.R., 1952, Landslides and rapid-flowage phenomena near
> Pierre, South Dakota: Economic Geology, v. 47, no. 5, p. 548-568. \[1
> PT (1)\]
>
> 2\. Harwood, D.G., 1994, Processes and rates of shoreline bluff
> recession at Lake Sharpe, South Dakota: Bulletin of the Association of
> Engineering Geologists, v. 31, no. 1, p. 5-13. \[1 POLY (2)\]
>
> **Tennessee**
>
> 1\. Bogucki, D.J., 1971, Debris slides and related flood damage
> associated with the September 1, 1951, cloudburst in the Mt. Le
> Conte-Sugarland Mountain area, Great Smoky Mountains National Park
> \[abs.\]: Dissertation Abstracts International, v. 32, no. 1, p.
> 365B-366B. \[1 PT (1,2)\]
>
> 2\. \_\_\_1976, Debris slides in the Mt. Le Conte area, Great Smoky
> Mountains National Park, U.S.A: Geografiska Annaler, v. 58, no. 3, p.
> 179-191. \[1 PT (1,2)\]
>
> 4\. Clark, G.M., 1987, Debris slide and debris flow events in the
> Appalachians south of the glacial border: Geological Society of
> America Reviews in Engineering Geology, v. 7, p. 125 - 129. \[11 PT
> (4)\]
>
> 8\. Outerbridge, W.F., 1981, Landslide and related features of the
> Bald Knob, TN quadrangle: U.S. Geological Survey Open-File Report
> 81-1318, scale 1:24,000. \[1 POLY (8)\]
>
> 7\. \_\_\_1982, Landslide and related features of the Ausmus, TN
> quadrangle: U.S. Geological Survey Open-File Report 82-0422, scale
> 1:24,000. \[1 POLY (7)\]
>
> 10\. \_\_\_1982, Landslide and related features of the Big Ridge Park,
> TN quadrangle: U.S. Geological Survey Open-File Report 82-0422, scale
> 1:24,000. \[1 POLY (10)\]
>
> 17\. \_\_\_ 1982, Landslide and related features of the Coleman Gap,
> TN quadrangle: U.S. Geological Survey Open-File Report 82-0422, scale
> 1:24,000. \[1 POLY (17)\]
>
> 18\. \_\_\_1982, Landslide and related features of the Clouds, TN
> quadrangle: U.S. Geological Survey Open-File Report 82-0422, scale
> 1:24,000. \[1 POLY (18)\]
>
> 25\. \_\_\_ 1982, Landslide and related features of the Fork Ridge, TN
> quadrangle: U.S. Geological Survey Open-File Report 82-0422, scale
> 1:24,000. \[1 POLY (25)\]
>
> 31\. \_\_\_ 1982, Landslide and related features of the Howard
> Quarter, TN quadrangle: U.S. Geological Survey Open-File Report
> 82-0422, scale 1:24,000. \[1 POLY (31)\]
>
> 35\. \_\_\_ 1982, Landslide and related features of the Lee Valley, TN
> quadrangle: U.S. Geological Survey Open-File Report 82-0422, scale
> 1:24,000. \[1 POLY (35)\]
>
> 37\. \_\_\_ 1982, Landslide and related features of the Luttrell, TN
> quadrangle: U.S. Geological Survey Open-File Report 82-0422, scale
> 1:24,000. \[1 POLY (37)\]
>
> 44\. \_\_\_1982, Landslide and related features of the Powder Springs,
> TN quadrangle: U.S. Geological Survey Open-File Report 82-0422, scale
> 1:24,000. \[1 POLY (44)\]
>
> 56\. \_\_\_ 1982, Landslide and related features of the Well Spring,
> TN quadrangle: U.S. Geological Survey Open-File Report 82-0422, scale
> 1:24,000. \[1 POLY (56)\]
>
> 57\. \_\_\_1982, Landslide and related features of the Wheeler, TN
> quadrangle: U.S. Geological Survey Open-File Report 82-0422, scale
> 1:24,000. \[1 POLY (57)\]
>
> 9\. Taylor, A.R., and Thomas, R.E., 1982, Landslide and related
> features of the Barthell S.W., TN quadrangle: U.S. Geological Survey
> Open-File Report 82-6535, scale 1:24,000. \[1 POLY (9)\]
>
> 5\. Thomas, R.E., 1981, Landslide and related features of the
> Altamont, TN quadrangle: U.S. Geological Survey Open-File Report
> 81-1318, scale 1:24,000. \[1 POLY (5)\]
>
> 6\. \_\_\_1981, Landslide and related features of the Alto, TN
> quadrangle: U.S. Geological Survey Open-File Report 81-1318, scale
> 1:24,000. \[1 POLY (6)\]
>
> 11\. \_\_\_1981, Landslide and related features of the Brayton, TN
> quadrangle: U.S. Geological Survey Open-File Report 81-1318, scale
> 1:24,000. \[1 POLY (11)\]
>
> 12\. \_\_\_1981, Landslide and related features of the Brockdell, TN
> quadrangle: U.S. Geological Survey Open-File Report 81-1318, scale
> 1:24,000. \[1 POLY (12)\]
>
> 13\. \_\_\_1981, Landslide and related features of the Burrow Cave, TN
> quadrangle: U.S. Geological Survey Open-File Report 81-1318, scale
> 1:24,000. \[1 POLY (13)\]
>
> 14\. \_\_\_1981, Landslide and related features of the Cane Hollow, TN
> quadrangle: U.S. Geological Survey Open-File Report 81-1318, scale
> 1:24,000. \[1 POLY (14)\]
>
> 15\. \_\_\_1981, Landslide and related features of the Cardwell
> Mountain, TN quadrangle: U.S. Geological Survey Open-File Report
> 81-1318, scale 1:24,000. \[1 POLY (15)\]
>
> 19\. \_\_\_1981, Landslide and related features of the Collins, TN
> quadrangle: U.S. Geological Survey Open-File Report 81-1318, scale
> 1:24,000. \[1 POLY (19)\]
>
> 20\. \_\_\_1981, Landslide and related features of the Curtistown, TN
> quadrangle: U.S. Geological Survey Open-File Report 81-1318, scale
> 1:24,000. \[1 POLY (20)\]
>
> 21\. \_\_\_1981, Landslide and related features of the Daus, TN
> quadrangle: U.S. Geological Survey Open-File Report 81-1318, scale
> 1:24,000. \[1 POLY (21)\]
>
> 22\. \_\_\_1981, Landslide and related features of the DeRossett, TN
> quadrangle: U.S. Geological Survey Open-File Report 81-1318, scale
> 1:24,000. \[1 POLY (22)\]
>
> 23\. \_\_\_1981, Landslide and related features of the Dorton, TN
> quadrangle: U.S. Geological Survey Open-File Report 81-1318, scale
> 1:24,000. \[1 POLY (23)\]
>
> 26\. \_\_\_1981, Landslide and related features of the Grassy Grove,
> TN quadrangle: U.S. Geological Survey Open-File Report 81-1318, scale
> 1:24,000. \[1 POLY (26)\]
>
> 27\. \_\_\_1981, Landslide and related features of the Henson Gap, TN
> quadrangle: U.S. Geological Survey Open-File Report 81-1318, scale
> 1:24,000. \[1 POLY (27)\]
>
> 28\. \_\_\_1981, Landslide and related features of the Herbert Domain,
> TN quadrangle: U.S. Geological Survey Open-File Report 81-1318, scale
> 1:24,000. \[1 POLY (28)\]
>
> 29\. \_\_\_1981, Landslide and related features of the Hillsboro, TN
> quadrangle: U.S. Geological Survey Open-File Report 81-1318, scale
> 1:24,000. \[1 POLY (29)\]
>
> 32\. \_\_\_ 1981, Landslide and related features of the Irving
> College, TN quadrangle: U.S. Geological Survey Open-File Report
> 81-1318, scale 1:24,000. \[1 POLY (32)\]
>
> 34\. \_\_\_1981, Landslide and related features of the Ketner Gap, TN
> quadrangle: U.S. Geological Survey Open-File Report 81-1318, scale
> 1:24,000. \[1 POLY (34)\]
>
> 36\. \_\_\_ 1981, Landslide and related features of the Lonewood, TN
> quadrangle: U.S. Geological Survey Open-File Report 81-1318, scale
> 1:24,000. \[1 POLY (36)\]
>
> 38\. \_\_\_1981, Landslide and related features of the Melvine, TN
> quadrangle: U.S. Geological Survey Open-File Report 81-1318, scale
> 1:24,000. \[1 POLY (38)\]
>
> 39\. \_\_\_1981, Landslide and related features of the Melvine, TN
> quadrangle: U.S. Geological Survey Open-File Report 81-1318, scale
> 1:24,000. \[1 POLY (39)\]
>
> 40\. \_\_\_1981, Landslide and related features of the Mount Airy, TN
> quadrangle: U.S. Geological Survey Open-File Report 81-1318, scale
> 1:24,000. \[1 POLY (40)\]
>
> 41\. \_\_\_1981, Landslide and related features of the Orme, TN
> quadrangle: U.S. Geological Survey Open-File Report 81-1318, scale
> 1:24,000. \[1 POLY (41)\]
>
> 42\. \_\_\_1981, Landslide and related features of the Pikeville, TN
> quadrangle: U.S. Geological Survey Open-File Report 81-1318, scale
> 1:24,000. \[1 POLY (42)\]
>
> 43\. \_\_\_1981, Landslide and related features of the Pitcher Ridge,
> TN quadrangle: U.S. Geological Survey Open-File Report 81-1318, scale
> 1:24,000. \[1 POLY (43)\]
>
> 45\. \_\_\_1981, Landslide and related features of the Sampson, TN
> quadrangle: U.S. Geological Survey Open-File Report 81-1318, scale
> 1:24,000. \[1 POLY (45)\]
>
> 46\. \_\_\_1981, Landslide and related features of the Savage Point,
> TN quadrangle: U.S. Geological Survey Open-File Report 81-1318, scale
> 1:24,000. \[1 POLY (46)\]
>
> 47\. \_\_\_1981, Landslide and related features of the Sequatchie, TN
> quadrangle: U.S. Geological Survey Open-File Report 81-1318, scale
> 1:24,000. \[1 POLY (47)\]
>
> 48\. \_\_\_1981, Landslide and related features of the Sewanee, TN
> quadrangle: U.S. Geological Survey Open-File Report 81-1318, scale
> 1:24,000. \[1 POLY (48)\]
>
> 49\. \_\_\_1981, Landslide and related features of the Sinking Cove,
> TN quadrangle: U.S. Geological Survey Open-File Report 81-1318, scale
> 1:24,000. \[1 POLY (49)\]
>
> 50\. \_\_\_1981, Landslide and related features of the South
> Pittsburg, TN quadrangle: U.S. Geological Survey Open-File Report
> 81-1318, scale 1:24,000. \[1 POLY (50)\]
>
> 51\. \_\_\_1981, Landslide and related features of the Tracy City, TN
> quadrangle: U.S. Geological Survey Open-File Report 81-1318, scale
> 1:24,000. \[1 POLY (51)\]
>
> 52\. \_\_\_1981, Landslide and related features of the Vandever, TN
> quadrangle: U.S. Geological Survey Open-File Report 81-1318, scale
> 1:24,000. \[1 POLY (52)\]
>
> 53\. \_\_\_1981, Landslide and related features of the Viola, TN
> quadrangle: U.S. Geological Survey Open-File Report 81-1318, scale
> 1:24,000. \[1 POLY (53)\]
>
> 54\. \_\_\_1981, Landslide and related features of the Wauhatchie, TN
> quadrangle: U.S. Geological Survey Open-File Report 81-1318, scale
> 1:24,000. \[1 POLY (54)\]
>
> 55\. \_\_\_1981, Landslide and related features of the Welchland, TN
> quadrangle: U.S. Geological Survey Open-File Report 81-1318, scale
> 1:24,000. \[1 POLY (55)\]
>
> 58\. \_\_\_ 1981, Landslide and related features of the White City, TN
> quadrangle: U.S. Geological Survey Open-File Report 81-1318, scale
> 1:24,000. \[1 POLY (58)\]
>
> 59\. \_\_\_1981, Landslide and related features of the Whitwell, TN
> quadrangle: U.S. Geological Survey Open-File Report 81-1318, scale
> 1:24,000. \[1 POLY (59)\]
>
> 16\. Thomas, R.E., and Taylor, A.R., 1982, Landslide and related
> features of the Clarkrange, TN quadrangle: U.S. Geological Survey
> Open-File Report 82-653, scale 1:24,000. \[1 POLY (16)\]
>
> 24\. \_\_\_1982, Landslide and related features of the Duncan Flats,
> TN quadrangle: U.S. Geological Survey Open-File Report 82-653, scale
> 1:24,000. \[1 POLY (24)\]
>
> 30\. \_\_\_1982, Landslide and related features of the Honey Creek, TN
> quadrangle: U.S. Geological Survey Open-File Report 82-653, scale
> 1:24,000. \[1 POLY (30)\]
>
> 33\. \_\_\_1982, Landslide and related features of the Jacksboro, TN
> quadrangle: U.S. Geological Survey Open-File Report 82-653, scale
> 1:24,000. \[1 POLY (33)\]
>
> **Texas**
>
> 1\. Lovejoy, E.M.P., 1972, Wisconsin boulder flow and its geomorphic
> implications, Franklin Mountains, El Paso County, Texas: Geologic
> Society of America Bulletin, v. 83, p. 3501-3508. \[1 PT (1)\]
>
> **Utah**
>
> 38\. Baum, R.L., and Fleming, R.W., 1989, Landslides and debris flows
> in Ephraim Canyon, Central Utah, *in* Landslide Processes and theory:
> U.S. Geological Survey Bulletin 1842. \[1 PT (38)\]
>
> 2\. Blackwelder, E., 1928, Mudflows as a geologic agent in semiarid
> mountains: Geological Society of America Bulletin, v. 39, no. 2, p.
> 465-480. \[1 POLY (2,6,13,19,23,24,27,29,31,35,36,37)\]
>
> 3\. Brabb, E.E., Reconnaissance field investigations in Utah, 1982,
> 1983. See also: Brabb, E.E., Wieczorek, G.F., and Harp, E.L., 1989,
> Map showing 1983 landslides in Utah: U.S. Geological Survey
> Miscellaneous Field Studies Map MF-2085, scale 1:500,000. \[2 PT (3)\]
>
> 4\. Brabb, E.E., and Harp, E., transcripts of plane flight above Utah,
> June 13-18, 1983. See also: Brabb, E.E., Wieczorek, G.F., and Harp,
> E.L., 1989, Map showing 1983 landslides in Utah: U.S. Geological
> Survey Miscellaneous Field Studies Map MF-2085, scale 1:500,000. \[4
> POLY (4), 1 PT (4)\]
>
> 6\. Crawford, A.L. and Thackwell, F.E., 1931, Some aspects of the
> mudflows north of Salt Lake City, Utah: Utah Academy of Science,
> Proceedings, v. 8, p. 97-105. \[1 POLY
> (2,6,13,19,23,24,27,29,31,35,36,37)\]
>
> 8\. Desert News, 1984, Moving mud swallows traintrack; Potential
> slides dot the Wasatch, May 16. \[1 PT (8)\]
>
> 9\. Fleming, R.W., Schuster, R.L., Johnson, R.B., and Robinson, S.L.,
> 1977, Recent movement of the Manti, Utah, landslide: 15th Annual
> Engineering Geology and Soils Engineering Symposium, Proceedings, p.
> 161-178. \[1 PT (9,34)\]
>
> 10\. Fuller, H.K., Williams, V.S., and Colton, R.B., 1981, Map showing
> areas of landsliding in the Kaiparowits coal-basin area, Utah: U.S.
> Geological Survey, Miscellaneous Investigation Series Map I-1033-H;
> scale 1:125,000. \[3 PT (10), 1 POLY (10)\]
>
> 11\. Godfrey, A.E., 1980, Debris avalanche deposits north of Mount
> Ellen, *in* Picard, M. D. (ed.), Henry Mountains Symposium: Utah
> Geological Association Publication, v. 8, p. 171-176. \[1 PT (11)\]
>
> 40\. Harty, K.M., 1991, Landslide map of the Trenton 30° by 60°
> quadrangle, Utah: Utah Geological Survey Open-File Report, (digital
> data - http://its.state.ut.us/agrc), scale 1:100,000. \[6 PT (40)\]
>
> 41\. \_\_\_1991, Landslide map of the Logan 30° by 60° quadrangle,
> Utah: Utah Geological Survey Open-File Report, (digital data -
> http://its.state.ut.us/agrc), scale 1:100,000. \[12 PT (41)\]
>
> 42\. \_\_\_1991, Landslide map of the Promontory Point 30° by 60°
> quadrangle, Utah: Utah Geological Survey Open-File Report, (digital
> data - http://its.state.ut.us/agrc), scale 1:100,000. \[4 PT (42)\]
>
> 43\. \_\_\_1991, Landslide map of the Ogden 30° by 60° quadrangle,
> Utah: Utah Geological Survey Open-File Report, (digital data -
> http://its.state.ut.us/agrc), scale 1:100,000. \[292 (43)\]
>
> 44\. \_\_\_1991, Landslide map of the Tooele 30° by 60° quadrangle,
> Utah: Utah Geological Survey Open-File Report, (digital data -
> http://its.state.ut.us/agrc), scale 1:100,000. \[50 PT (44)\]
>
> 45\. \_\_\_1991, Landslide map of the Salt Lake City 30° by 60°
> quadrangle, Utah: Utah Geological Survey Open-File Report, (digital
> data - http://its.state.ut.us/agrc), scale 1:100,000. \[386 PT (45)\]
>
> 46\. \_\_\_1991, Landslide map of the Dutch John 30° by 60°
> quadrangle, Utah: Utah Geological Survey Open-File Report, (digital
> data - http://its.state.ut.us/agrc), scale 1:100,000. \[1 PT (46)\]
>
> 47\. \_\_\_1991, Landslide map of the Rush Valley 30° by 60°
> quadrangle, Utah: Utah Geological Survey Open-File Report, (digital
> data - http://its.state.ut.us/agrc), scale 1:100,000. \[36 PT (47)\]
>
> 48\. \_\_\_1991, Landslide map of the Provo 30° by 60° quadrangle,
> Utah: Utah Geological Survey Open-File Report, (digital data -
> http://its.state.ut.us/agrc), scale 1:100,000. \[250 PT (48)\]
>
> 49\. \_\_\_ 1991, Landslide map of the Nephi 30° by 60° quadrangle,
> Utah: Utah Geological Survey Open-File Report, (digital data -
> http://its.state.ut.us/agrc), scale 1:100,000. \[1128 (49)\]
>
> 50\. \_\_\_ 1991, Landslide map of the Price 30° by 60° quadrangle,
> Utah: Utah Geological Survey Open-File Report, (digital data -
> http://its.state.ut.us/agrc), scale 1:100,000. \[2 PT (50)\]
>
> 51\. \_\_\_1991, Landslide map of the Tule Valley 30° by 60°
> quadrangle, Utah: Utah Geological Survey Open-File Report, (digital
> data - http://its.state.ut.us/agrc), scale 1:100,000. \[4 PT (51)\]
>
> 52\. \_\_\_1991, Landslide map of the Salina 30° by 60° quadrangle,
> Utah: Utah Geological Survey Open-File Report, (digital data -
> http://its.state.ut.us/agrc), scale 1:100,000. \[2 PT (52)\]
>
> 53\. \_\_\_1991, Landslide map of the Beaver 30° by 60° quadrangle,
> Utah: Utah Geological Survey Open-File Report, (digital data -
> http://its.state.ut.us/agrc), scale 1:100,000. \[1 PT (53)\]
>
> 54\. \_\_\_1991, Landslide map of the La Sal 30° by 60° quadrangle,
> Utah: Utah Geological Survey Open-File Report, (digital data -
> http://its.state.ut.us/agrc), scale 1:100,000. \[1 PT (54)\]
>
> 55\. \_\_\_1991, Landslide map of the Cedar City 30° by 60°
> quadrangle, Utah: Utah Geological Survey Open-File Report, (digital
> data - http://its.state.ut.us/agrc), scale 1:100,000. \[1 PT (55)\]
>
> 56\. \_\_\_1991, Landslide map of the Saint George 30° by 60°
> quadrangle, Utah: Utah Geological Survey Open-File Report, (digital
> data - http://its.state.ut.us/agrc), scale 1:100,000. \[1 PT (56)\]
>
> 57\. \_\_\_1991, Landslide map of the Kanab 30° by 60° quadrangle,
> Utah: Utah Geological Survey Open-File Report, (digital data -
> http://its.state.ut.us/agrc), scale 1:100,000. \[1 PT (57)\]
>
> 13\. Kaliser, B.N., 1983, Geologic Hazards of 1983: Utah Geological
> and Mineralogical Survey, Quarterly Review, v. 3, no. 3, p. 2. \[1
> POLY (2,6,13,19,23,24,27,29,31,35,36,37)\]
>
> 14\. \_\_\_1972, Environmental geology of Bear Lake area, Rich County,
> Utah: Utah Geological and Mineralogical Survey Bulletin 96, 32 p. \[1
> PT (14)\]
>
> 15\. \_\_\_not dated, Environmental geology and geological hazards in
> Utah; a photographic series: Utah Geological and Mineralogical Survey,
> Earth Science Education Series Report 2, 5 p. \[1 POLY (15)\]
>
> 16\. Lips, E.W., Wieczorek, G.F., Boschetto, H.B., 1984, Factors
> influencing debris-flow runout, *in* Bowles, D.S., ed., Delineation of
> landslide, flash flood and debris flow hazards in Utah; Proceedings of
> a specialty conference, Logan: Utah Water Research Laboratory, RG85-3,
> p. 115. \[4 PT (16)\]
>
> 17\. Marshall, R.E., 1949, The Quaternary system in Utah, *in* The oil
> and gas possibilities of Utah, Utah Geological and Mineralogical
> Survey, p. 109-118. \[1 PT (17,32)\]
>
> 18\. Miller, R.D., 1980, Surficial map along part of the Wasatch
> Front, Salt Lake Valley, Utah: U.S. Geological Survey, Miscellaneous
> Field Studies Map MF-1198, scale 1:100,000. \[1 PT (18)\]
>
> 19\. Pack, F.J., 1923, Torrential potential of desert waters:
> Pan-American Geologist, v. 40, p. 349-356. \[1 POLY
> (2,6,13,19,23,24,27,29,31,35,36,37)\]
>
> 20\. Peninsula Times Tribune, 1984, Rain soaks east, Heat hits
> Rockies. \[1 PT (20)\]
>
> 22\. The Pyramid, 1984, Flood waters cause damage, May 16, v. 92, no.
> 20. \[2 PT (22)\]
>
> 37\. Pierson, T.C., 1984, Composition and dynamics of Rudd Canyon Mud
> flows, *in* Bowles, D.S. ed., Delineation of landslide, flash flood
> and debris flow hazards in Utah; Proceedings of a specialty
> conference: General Series, Utah Water Research Laboratory, G85-3, p.
> 132-152. Meeting: Logan, Utah, June 14-15, 1984. \[1 POLY
> (2,6,13,19,23,24,27,29,31,35,36,37)\]
>
> 23\. Shroder, J.F., Jr., 1971, Landslides of Utah: Utah Geological and
> Mineral Survey, Bulletin 90, 51 p. \[6 PT (23), 1 POLY
> (2,6,13,19,23,24,27,29,31,35,36,37)\]
>
> 24\. U.S. Forest Service, 1972, Landslide inventory map 340-4U,
> Peterson Quadrangle: U.S. Forest service, Wasatch National Forest,
> Salt Lake Ranger District, Ogden, UT, scale 1:24,000. \[1 POLY
> (2,6,13,19,23,24,27,29,31,35,36,37)\]
>
> 25\. \_\_\_1972, Landslide Inventory Map 340-1U, Snow Basin
> Quadrangle: U.S. Forest Service, Wasatch and Cache National Forest,
> Salt Lake and Ogden Ranger Districts, Ogden, UT, scale 1:24,000. \[1
> POLY (25,26,28,30)\]
>
> 26\. \_\_\_1972, Landslide Inventory Map 340- 3U, Kaysville
> Quadrangle: U.S. Forest Service, Wasatch National Forest, Salt Lake
> Ranger District, Ogden, UT, scale 1:24,000. \[1 POLY (25,26,28,30)\]
>
> 27\. \_\_\_1972, Landslide Inventory Map 327-2U, Farmington
> Quadrangle: U.S. Forest Service, Wasatch National Forest, Salt Lake
> Ranger District, Ogden, UT, scale 1:24,000. \[1 POLY
> (2,6,13,19,23,24,27,29,31,35,36,37)\]
>
> 28\. \_\_\_1972, Landslide Inventory Map 340-2U, Ogden Quadrangle:
> U.S. Forest Service, Wasatch and Cache National Forests, Salt Lake and
> Ogden Ranger Districts, Ogden, UT, scale 1:24,000. \[1 POLY
> (25,26,28,30)\]
>
> 29\. \_\_\_1972, Landslide inventory Map 327-U, Bountiful Quadrangle:
> U.S. Forest Service, Wasatch National Forest, Salt Lake Ranger
> District, Ogden, UT, scale 1:24,000. \[1 POLY
> (2,6,13,19,23,24,27,29,31,35,36,37)\]
>
> 30\. \_\_\_1972, Landslide Inventory Map 353-4U, Snow Basin
> Quadrangle: U.S. Forest Service, Cache National Forest, Ogden Ranger
> District, Ogden, UT, scale 1:24,000. \[1 POLY (25,36,28,30\]
>
> 31\. Vandre, B.C., 1984, Rudd Creek debris flow, *in* Bowles, D.S.,
> ed., Delineation of landslide, flash flood and debris flow hazards in
> Utah; Proceedings of a specialty conference: Utah Water Research
> Laboratory, Logan, Utah, June 14-15, 1984, p. 117-131. \[1 POLY
> (2,6,13,19,23,24,27,29,31,35,36,37)\]
>
> 32\. Van Horn, R., 1972, Landslide and associated deposits map of the
> Sugar House Quadrangle, Salt Lake County, Utah: U.S. Geological Survey
> Miscellaneous Geologic Investigations Map I-766D, scale 1:24,000. \[1
> PT (17,32)\]
>
> 39\. Vaugn, D.M., 1997, A major debris flow along the Wasatch Front in
> northern Utah, U.S.A: Physical Geography, v. 18, no. 3, p. 246-262.
> \[1 PT (39)\]
>
> 34\. Wallaee, R.G., 1977, Boulder terraces and debris flows in Six
> Mile and Manti Canyons, west edge of Wasatch Plateau, Utah \[abs.\]:
> Geological Society of America, Abstracts with Programs, v. 9, no. 5,
> p. 663. \[1 PT (9,34)\]
>
> 35\. Wieczorek, G.F., Ellen, S., Lips, E.W., Cannon, S.H., Short,
> D.H., 1983, Potential for debris flow and debris flood along the
> Wasatch Front between Salt Lake City and Willard, Utah, and measures
> for their mitigation: U.S. Geological Survey, Open-File Report 83-635,
> scale 1:100:000. \[1 POLY (2,6,13,19,23,24,27,29,31,35,36,37)\]
>
> 36\. \_\_\_ 1984, Identification of debris flow and debris flood
> potential along the Wasatch Front between Salt Lake City and Willard,
> Utah, *in* Bowles, D.S., ed, Delineation of landslide, flash flood and
> debris flow hazards in Utah; Proceedings of a specialty conference:
> General Series, Utah Water Research Laboratory, G85-3, p. 9., Meeting
> in Logan, Utah, June 14-15, 1984. \[1 POLY
> (2,6,13,19,23,24,27,29,31,35,36,37)\]
>
> **Vermont**
>
> 4\. Baskerville, C.A., and Ohlmacher, G.C., 1987, Recent Slope
> movements in Vermont, *in* Schultz, A. P., and Southworth, C. S.,
> eds., Landslides of Eastern North America: U.S. Geological Survey
> Circular 1008, Papers presented at the southeast section of the GSA
> Symposium, March 26, 1987. \[1 PT (4)\]
>
> 1\. Ratte, C.A., and Rhodes, D.D., 1977, Hurricane induced landslides
> on Dorset Mountain, Vermont \[abs.\]: Geological Society of America,
> Abstracts with Programs, v. 9, no. 3, p. 311. \[1 PT (1,2)\]
>
> 2\. \_\_\_1981, The debris avalanche in the Green Mountains of
> Vermont: Appalachia Journal, p. 143-145. \[1 PT (1,2)\]
>
> 3\. \_\_\_1982, Are the Green Mountains of Vermont really as serene as
> they look?: written commun. \[1 PT (3)\]
>
> **Virginia**
>
> 1\. Bartholomew, M.J., 1977, Geology of the Greenfield and Sherando
> Quadrangles, Virginia: Virginia Division of Mineral Resources,
> Publication 4, 43 p. \[1 POLY (1)\]
>
> 11\. Clark, G.M., 1987, Debris slide and debris flow events in the
> Appalachians south of the glacial border: Geological Society of
> America Reviews in Engineering Geology, v. 7, p. 125-129. \[7 PT (11)
>
> 2\. Hack, J.T., and Goodlett, J.C., 1960, Geomorphology and forest
> ecology of a mountain region in the central Appalachians: U.S.
> Geological Survey Professional Paper 347, 66 p. \[1 POLY (2),1 POLY
> (2,40)\]
>
> 28\. Hackman, R.J., and Thomas, R.E., 1979, Landslides and related
> features of the Hightown, VA-WV quadrangle: U.S. Geological Survey
> Open-File Report 80-194, scale 1:24,000. \[1 POLY (28), 1 POLY
> (28,49,50)\]
>
> 33\. \_\_\_1979, Landslides and related features of the Mountain
> Grove, VA-WV quadrangle: U.S. Geological Survey Open-File Report
> 80-194, scale 1:24,000. \[1 POLY (33)\]
>
> 40\. \_\_\_ 1979, Landslides and related features of the Reddish Knob,
> VA-WV quadrangle: U.S. Geological Survey Open-File Report 80-194,
> scale 1:24,000. \[1 POLY (2,40)\]
>
> 43\. \_\_\_1979, Landslides and related features of the Sunrise, VA-WV
> quadrangle: U.S. Geological Survey Open-File Report 80-194, scale
> 1:24,000. \[1 POLY (43)\]
>
> 34\. \_\_\_1979, Landslides and related features of the Mustoe, VA-WV
> quadrangle: U.S. Geological Survey Open-File Report 80-194, scale
> 1:24,000. \[1 POLY (34), 1 POLY (34,49,50)\]
>
> 3\. Hull, J.C., Scott, R.C., 1982, Plant succession on debris
> avalanches of Nelson County, Virginia: Castanea, v. 47, p. I58-I76.
> \[1 POLY (3,4,5,6,7,8,9,10)\]
>
> 49\. Jacobsen, R.B., 1993, Geomorphic Studies of the storm and flood
> of November 3-5, 1985, in the upper Potomac and Cheat River basins: U.
> S. Geological Survey Bulletin, p. A1-A3. \[1 POLY (28,49,50)\] 1 POLY
> (34,49,50), 1 POLY (44,49,50)\]
>
> 50\. Jacobson, R.B., Cron, E.D., and McGeehin, J.P., 1989, Slope
> movements triggered by heavy rainfall, November 3-5, in Virginia and
> West Virginia, U.S.A., *in* Shultz, A.P., and Jibson, R.W., eds.,
> Landslide processes of the eastern United States and Puerto Rico:
> Geological Society of America Special Paper 236. \[1 POLY (28,49,50)\]
> 1 POLY (34,49,50), 1 POLY (44,49,50)\]
>
> 48\. Johnson, S., 1999, Debris flows of 1996 on the Maury River, west
> flank of the Blue Ridge, Rockbridge County, VA: written commun. \[1
> POLY (48)\]
>
> 4\. Kudaida, A.J., Jr., 1971, Debris avalanching as a natural hazard
> in the southern Appalachians, a case study of the Davis Creek
> watershed, Virginia: East Tennessee State University, unpublished M.S.
> thesis. \[1 POLY (3,4,5,6,7,8,9,10)\]
>
> 47\. Morgan, B.A., Wieczorek, G.F., and Campbell, R.H., 1999, Map of
> rainfall, debris flows, and flood effects of the June 27, 1995, storm
> in Madison County, Virginia: U.S. Geological Survey Investigations Map
> I-2623-A, scale 1:24,000. \[1 POLY (47)\]
>
> 23\. Outerbridge, W.F., 1979, Landslides and related features of the
> Flat Gap, VA-KY quadrangle: U.S. Geological Survey Open-File Report
> 79-714, scale 1:24,000. \[1 POLY (23)\]
>
> 25\. \_\_\_1979, Landslides and related features of the Grundy, VA
> quadrangle: U.S. Geological Survey Open-File Report 79-714, scale
> 1:24,000. \[1 POLY (25)\]
>
> 26\. \_\_\_1979, Landslides and related features of the Harman, VA-KY
> quadrangle: U.S. Geological Survey Open-File Report 79-714, scale
> 1:24,000. \[1 POLY (26)\]
>
> 27\. \_\_\_1979, Landslides and related features of the Haysi, VA-KY
> quadrangle: U.S. Geological Survey Open-File Report 79-714, scale
> 1:24,000. \[1 POLY (27)\]
>
> 29\. \_\_\_1979, Landslides and related features of the Hurley, VA-KY
> quadrangle: U.S. Geological Survey Open-File Report 79-714, scale
> 1:24,000. \[1 POLY (29)\]
>
> 30\. \_\_\_1979, Landslides and related features of the Jenkins East,
> VA-KY quadrangle: U.S. Geological Survey Open-File Report 79-714,
> scale 1:24,000. \[1 POLY (30)\]
>
> 39\. \_\_\_1979, Landslides and related features of the Prater, VA
> quadrangle: U.S. Geological Survey Open-File Report 79-714, scale
> 1:24,000. \[1 POLY (39)\]
>
> 12\. \_\_\_ 1982, Landslides and related features of the Appalachia,
> VA -- KY quadrangle: U.S. Geological Survey Open-File Report 82-0422,
> scale 1:24,000. \[1 POLY (12)\]
>
> 13\. \_\_\_1982, Landslides and related features of the Ben Hur, VA
> quadrangle: U.S. Geological Survey Open-File Report 82-0422, scale
> 1:24,000. \[1 POLY (13)\]
>
> 24\. \_\_\_1982, Landslides and related features of the Fort
> Blackmore, VA quadrangle: U.S. Geological Survey Open-File Report
> 82-0422, scale 1:24,000. \[1 POLY (24)\]
>
> 31\. \_\_\_1982, Landslides and related features of the Lebanon, VA
> quadrangle: U.S. Geological Survey Open-File Report 82-0422, scale
> 1:24,000. \[1 POLY (31)\]
>
> 32\. \_\_\_1982, Landslides and related features of the Moll Creek, VA
> quadrangle: U.S. Geological Survey Open-File Report 82-0422, scale
> 1:24,000. \[1 POLY (32)\]
>
> 36\. \_\_\_ 1982, Landslides and related features of the Norton, VA
> quadrangle: U.S. Geological Survey Open-File Report 82-0422, scale
> 1:24,000. \[1 POLY (36)\]
>
> 37\. \_\_\_1982, Landslides and related features of the Pennington
> Gap, VA quadrangle: U.S. Geological Survey Open-File Report 82-0422,
> scale 1:24,000. \[1 POLY (37)\]
>
> 41\. \_\_\_1982, Landslides and related features of the Rose Hill, VA
> quadrangle: U.S. Geological Survey Open-File Report 82-0422, scale
> 1:24,000. \[1 POLY (41)\]
>
> 42\. \_\_\_1982, Landslides and related features of the St. Paul, VA
> quadrangle: U.S. Geological Survey Open-File Report 82-0422, scale
> 1:24,000. \[1 POLY (42)\]
>
> 45\. \_\_\_1982, Landslides and related features of the Wise, VA
> quadrangle: U.S. Geological Survey Open-File Report 82-0422, scale
> 1:24,000. \[1 POLY (45)\]
>
> 16\. Outerbridge , W.F., and Thomas, R.E., 1979, Landslides and
> related features of the Caney Ridge, VA quadrangle: U.S. Geological
> Survey Open-File Report 79-714, scale 1:24,000. \[1 POLY (16)\]
>
> 22\. \_\_\_ 1979, Landslides and related features of the Duty, VA
> quadrangle: U.S. Geological Survey Open-File Report 79-714, scale
> 1:24,000. \[1 POLY (22)\]
>
> 35\. \_\_\_1979, Landslides and related features of the Nora, VA
> quadrangle: U.S. Geological Survey Open-File Report 79-714, scale
> 1:24,000. \[1 POLY (35)\]
>
> 38\. \_\_\_1979, Landslides and related features of the Pound, VA
> quadrangle: U.S. Geological Survey Open-File Report 79-714, scale
> 1:24,000. \[1 POLY (38)\]
>
> 44\. \_\_\_ 1979, Landslides and related features of the Vansant, VA
> quadrangle: U.S. Geological Survey Open-File Report 79-714, scale
> 1:24,000. \[1 POLY (44), 1 POLY (44,49,50)\]
>
> 14\. \_\_\_1979, Landslides and related features of the Big A
> Mountain, VA quadrangle: U.S. Geological Survey Open-File Report
> 79-714, scale 1:24,000. \[1 POLY (14)\]
>
> 19\. \_\_\_1979, Landslides and related features of the Clintwood,
> VA-KY quadrangle: U.S. Geological Survey Open-File Report 79-714,
> scale 1:24,000. \[1 POLY (19)\]
>
> 20\. \_\_\_1982, Landslides and related features of the Coeburn, VA-KY
> quadrangle: U.S. Geological Survey Open-File Report 82-0422, scale
> 1:24,000. \[1 POLY (20)\]
>
> 15\. \_\_\_1982, Landslides and related features of the Brumley, VA
> quadrangle: U.S. Geological Survey Open-File Report 82-0422, scale
> 1:24,000. \[1 POLY (15)\]
>
> 17\. \_\_\_1982, Landslides and related features of the Carbo, VA
> quadrangle: U.S. Geological Survey Open-File Report 82-0422, scale
> 1:24,000. \[1 POLY (17)\]
>
> 18\. \_\_\_1982, Landslides and related features of the Clinchport, VA
> quadrangle: U.S. Geological Survey Open-File Report 82-0422, scale
> 1:24,000. \[1 POLY (18)\]
>
> 21\. Thomas, R.E., and Hackman, R.J., 1979, Landslides and related
> features of the Cow Knob, VA-WV quadrangle: U.S. Geological Survey
> Open-File Report 80-194, scale 1:24,000. \[1 POLY (21)\]
>
> 46\. \_\_\_1979, Landslides and related features of the Woodstock,
> VA-WV quadrangle: U.S. Geological Survey Open-File Report 80-194,
> scale 1:24,000. \[1 POLY (46)\]
>
> 5\. Virginia Minerals, 1969, Natural features caused by a catastrophic
> storm in Nelson and Amherst Counties, Virginia: Virginia Minerals,
> Special Issue (October), 16 p. \[1 POLY (3,4,5,6,7,8,9,10)\]
>
> 6\. Washington Post, 1982, Amtrak train derailed by mudslide: February
> 19. \[1 POLY (3,4,5,6,7,8,9,10)\]
>
> 7\. Webb, H.W., Nunan, W.E., and Penley, H.M., 1970, Road log of
> storm-damaged areas in central Virginia: Virginia Minerals, v. 16, no.
> 1, p. 1-10. \[1 POLY (3,4,5,6,7,8,9,10)\]
>
> 8\. Williams, G.P., and Guy, H.P., 1971, Debris avalanches, a
> geomorphic hazard, *in* Coates, D. R., (compiler) Environmental
> Geomorphology: Dowden, Hutchinson and Ross, Stroudsburg, PA, p. 25-46.
> \[1 POLY (3,4,5,6,7,8,9,10)\]
>
> 9\. \_\_\_1973, Erosional and deposition aspects of Hurricane Camille
> in Virginia, 1969: U.S. Geological Survey Professional Paper 804, 80
> p. \[1 POLY (3,4,5,6,7,8,9,10)\]
>
> 10\. Woodruff, J.F., 1971, Debris avalanches as an erosional agent in
> the Appalachian Mountains: Journal of Geography, v. 70, no. 7, p.
> 399-405. \[1 POLY (3,4,5,6,7,8,9,10)\]
>
> **Washington**
>
> 42\. Brabb, E.E., Reconnaisance field investigations in Washington,
> 1982, 1985. \[26 PT (42)\]
>
> 1\. Crandell, D.R., 1963, Paradise debris flow at Mount Rainier,
> Washington: U.S. Geological Survey Professional Paper 475-B, p.
> B135-139. \[1 POLY (1,2,4,5,6,7,14,26)\]
>
> 2\. \_\_\_1971, Postglacial lahars from Mount Rainier Volcano,
> Washington: U.S. Geological Survey Professional Paper 677, 75 p. \[1
> POLY (1,2,4,5,6,7,14,26)\]
>
> 4\. Crandell, D.R., and Waldron, H.H., 1956, A recent volcanic mudflow
> of exceptional dimensions from Mt. Rainier, Washington: American
> Journal of Science, v. 254, no. 6, p. 349-369. \[1 POLY
> (1,2,4,5,6,7,14,26)\]
>
> 5\. Crandell, D.R., and Fahnestock, R.K., 1965, Rockfalls and
> avalanches from Little Tahoma Peak on Mount Rainier, Washington: U.S.
> Geological Survey Bulletin 1221A, p. A1-A30. \[1 POLY
> (1,2,4,5,6,7,14,26)\]
>
> 6\. \_\_\_1966, Rock-fragment flows at Mount Rainier, Washington
> \[abs.\]: Geological Society of America, Special Paper 87, p. 281-282.
> \[1 POLY (1,2,4,5,6,7,14,26)\]
>
> 7\. Crandell, D.R., and Mullineaux, D.R., 1969, Volcanic hazards at
> Mount Rainier, Washington: U.S. Geological Survey Bulletin 1238, 26 p.
> \[1 POLY (1,2,4,5,6,7,14,26)\]
>
> 8\. Cummans, J., 1981, Chronology of mudflows in the South Fork and
> North Fork Toutle Rivers following the May 18 eruption, *in* Lipman,
> P. W., Mullineaux, D. R., eds., The 1980 eruptions of Mount St.
> Helens, Washington: U. S. Geological Survey Professional Paper 1250,
> p. 347-377. \[1 POLY (8,14,15,19,22,25,27,28,29,31,33,34,41)\]
>
> 10\. Daily News, 1978, Rain, hail dump mud on highway, September 11.
> \[1 PT (10,11)\]
>
> 11\. Daily News, 1978, Hillside home hit by mud, August 14. \[1 PT
> (10,11)\]
>
> 14\. Fiksdal, A.J., and Brunengo, M.J., 1980, Forest slope stability
> project; phase 1: Washington Department of Natural Resources, Division
> of Geology and Earth Resources, Technical Report DOE 80-2A, 16 p.\[10
> POLY (14), 1 POLY (1,2,4,5,6,7,14,26), 1 POLY (14,15), 1 POLY
> (8,14,15,19,22,25,27,28,29,31,33,34,41), 1 POLY (14,24,32)\]
>
> 15\. \_\_\_1981, Forest slope stability project, phase II: Washington
> State Department of Ecology, Report WDOE 81-14, 62 p. \[1 POLY
> (15,17), \[1 POLY (14,15), \[1 POLY
> (8,14,15,19,22,25,27,28,29,31,33,34,41)\]
>
> 16\. Frank, D., Post, A., and Friedman, J.D., 1975, Recurrent
> geothermally-induced debris avalanches on Boulder Glacier, Mount
> Baker, Washington: U.S. Geological Survey, Journal of Research, v. 3,
> no. 1, p. 77-87. \[1 POLY (16)\]
>
> 41\. Gilkey, K.E., 1982, Sedimentology of debris flows during the 1980
> eruption of Mt. St. Helens: Geological Society of America
> Abstracts-with-Programs, Cordilleran Section, Anaheim CA. \[1 POLY
> (8,14,15,19,22,25,27,28,29,31,33,34,41)\]
>
> 38\. Heller, P.L., 1981, Small landslide types and controls on glacial
> deposits: Lower Skagit River drainage, northern Cascade Range,
> Washington: Environmental Geology, v. 3, p. 221-228. \[56 PT (38)\]
>
> 17\. Higgins, J.D., Bijayanada, N., Mills, S.V., Copp, H., Roberson,
> J.A., 1983, The mechanics of mudflows: Report - Washington State
> University, Water Research center, v. 51, p. 116. \[1 POLY (15,17)\]
>
> 18\. Hoblitt, R.P., Miller, C.D., Wallance, J.W., 1981, Origin and
> stratigraphy of the deposition produced by the May 18 directed blast,
> *in* Lipman, P.W., Mullineaux, D.R., eds., The 1980 eruptions of Mount
> St. Helens, Washington: U.S. Geological Survey Professional Paper
> 1250, p. 401-419. \[1 POLY (8,14,15,19,22,25,27,28,29,31,33,34,41)\]
>
> 19\. Janda, R.J., Scott, K.M., Nolan, K.M., Martinson, H.A., 1981,
> Lahar movement, effects and deposits, *in* Lipman, P.W., Mullineaux,
> D.R., eds., The 1980 eruptions of Mount St. Helens, Washington: U. S.
> Geological Survey Professional Paper 1250, p. 461-478. \[1 POLY
> (8,14,15,19,22,25,27,28,29,31,33,34,41)\]
>
> 20\. Japan Society of Landslides, 1979, Field Trip Guidebook to
> landslides, West Coast of North America: Tokyo. \[(1 PT (20)\]
>
> 21\. Jones, F.O., not dated, U.S. Highway Research Board, #66:
> unpublished report. \[1 PT (21)\]
>
> 22\. Kieffer, S.W., 1981, Fluid dynamics of the May 18 blast at Mount
> St. Helens, *in* Lipman, P.W., Mullineaux, D.R., eds., The eruptions
> of Mount St. Helens, Washington: U.S. Geological Survey Professional
> Paper 1250, p. 379-400. \[1 POLY
> (8,14,15,19,22,25,27,28,29,31,33,34,41)\]
>
> 23\. Klock, G.O., and Helvey, J.D., 1976, Debris flows following
> wildfire in north central Washington: Third Federal Inter-Agency
> Sediment Conference, Proceedings, v. 1, p. 91-98. \[1 PT (23)\]
>
> 24\. Lisle, T.E., Lehre, A.K., Martinson, H.A., Meyer, D. F., Nelan,
> M., and Smith, R., 1982, Stream channel adjustments after the 1980
> Mount St. Helens eruptions: Source unknown. \[1 POLY (14,24,32)\]
>
> 25\. Lombard, R.E., Miles, M.B., Nelson, L.M., Kresh, D.L., Carpenter,
> P.J., 1981, The impact of mudflows of May 18 on the lower Toutle and
> Cowlitz Rivers, *in* Lipman, P.W. and Mullineaux, D.R., eds., The 1980
> eruptions of Mount St. Helens, Washington: U.S. Geological Survey
> Professional Paper 1250, p. 693-699. \[1 POLY
> (8,14,15,19,22,25,27,28,29,31,33,34,41)\]
>
> 26\. McKee, B., 1968, The destruction of Mount Rainier, *in*
> Association of Engineering Geologist, 1968 National Meeting, Seattle,
> WA, Guidebook to field trips, p. 46-52. \[1 POLY (1,2,4,5,6,7,14,26)\]
>
> 37\. Miller, D.J., 1991 Damage in King County from the storm of
> January 9,1990: Washington Geology, v. 19, no. 1, p 28-37. \[1 POLY
> (37)\]
>
> 27\. Moore, J.G., Sisson, T.W., 1981, Deposits and effects of the May
> 18 pyroclastic surge *in* Lipman, P.W. and Mullineaux, D.R. eds., The
> eruptions of Mount St. Helens, Washington: U.S. Geological Survey
> Professional Paper 1250, p. 421-438. \[1 POLY
> (8,14,15,19,22,25,27,28,29,31,33,34,41)\]
>
> 28\. Mullineaux, D.R. and Crandell, D.R., 1962, Recent lahars from
> Mount St. Helens, Washington: Geological Society of America Bulletin,
> v. 73, no. 7, p. 855-869. \[1 POLY
> (8,14,15,19,22,25,27,28,29,31,33,34,41)\]
>
> 29\. Rowley, P.D., Kuntz, M.A., and Macleod, N.S., 1981,
> Pyroclastic-flow deposits, *in* Lipman, P.W. and Mullineaux, D.R.,
> eds., The eruptions of Mount St. Helens, Washington: U.S. Geological
> Survey Professional Paper 1250, p. 489-512. \[1 POLY
> (8,14,15,19,22,25,27,28,29,31,33,34,41)\]
>
> 31\. Schuster, R.L. 1981, Effects of the eruptions on civil works and
> operations in the Pacific Northwest, *in* Lipman, P.W. and Mullineaux,
> D.R., eds., The eruptions of Mount St. Helens, Washington: U.S.
> Geological Survey Professional Paper 1250, p. 701-718. \[1 POLY
> (8,14,15,19,22,25,27,28,29,31,33,34,41)\]
>
> 32\. \_\_\_1982, Environmental effects of landslides associated with
> the 18 May 1980 eruption of Mount St. Helens, State of Washington,
> U.S.A.: *in* Sheko, A., ed., Landslides and Mudflows: Reports of
> Alma-Ata International Seminar, October 1981: UNESCO, published by
> Centre of International Projects, GKNT, Moscow, U.S.S.R., p. 69-86.
> \[1 POLY (14,24,32)\]
>
> 33\. Swift, C.H. and Kresch, G.L., 1983, Mudflow hazards along the
> Toutle and Cowlitz Rivers from a hypothetical failure of Spirit Lake
> blockage: United States Geological Survey, Water-Resources
> Investigations Report 82-4125, p. 10 p. \[1 POLY
> (8,14,15,19,22,25,27,28,29,31,33,34,41)\]
>
> 39\. Thorsen, G.W., and Othburg, K.L., 1978, Slope stability pilot
> project for department of Ecology: Department of Natural Resources,
> Division of Geology and Earth Resources, Olympia, WA 98504, 14 p. \[25
> PT (39)\]
>
> 34\. Voight, B., Glicken, H., Janda, R.J., and Douglass, P.M., 1981,
> Catastrophic landslide avalanche of May 18, *in* Lipman, P.W. and
> Mullineaux, D.R., eds., The 1980 eruptions of Mount St. Helens,
> Washington: U.S. Geological Survey Professional Paper 1250, p.
> 347-377. \[1 POLY (8,14,15,19,22,25,27,28,29,31,33,34,41)\]
>
> 35\. Waters, A.C., 1973, The Columbia River Gorge; basalt
> stratigraphy, ancient lava dams, and landslide dams, *in* Geologic
> Field Trips in Northern Oregon and Southern Washington; Trip 4: Oregon
> Department of Geology and Mineral Industries, Bulletin 77, p. 133-162.
> \[1 PT (35)\]
>
> **West Virginia**
>
> 4\. Author unknown, 1973, Flashflood. Washington Post, June 10, 1973,
> p. A4. 1 POLY (2,4)\]
>
> 6\. Clark, G.M., 1987, Debris slide and debris flow events in the
> Appalachians south of the glacial border: Geological Society of
> America Reviews in Engineering Geology, v. 7, p. 125 - 129. \[7 PT
> (6)\]
>
> 52\. Jacobsen, R.B., 1993, Geomorphic Studies of the storm and flood
> of November 3-5, 1985, in the upper Potomac and Cheat River basins: U.
> S. Geological Survey Bulletin, p. A1-A3. \[1 POLY (5,16,52), 1 POLY
> (5,20,52), 1 POLY (5,23,52), 1 POLY (5,38,52), 1 POLY (5,43,52), 1
> POLY (5,46,52)\]
>
> 5\. Jacobson, R.B., Cron, E.D., and McGeehin, J.P., 1989, Slope
> movements triggered by heavy rainfall, November 3-5, in Virginia and
> West Virginia, U.S.A., *in* Shultz, A.P., and Jibson, R.W., eds.,
> Landslide processes of the eastern United States and Puerto Rico:
> Geological Society of America Special Paper 236, p. 1-13. \[1 POLY
> (5,16,52), 1 POLY (5,20,52), 1 POLY (5,23,52), 1 POLY (5,38,52), 1
> POLY (5,43,52), 1 POLY (5,46,52)\]
>
> 2\. Lessing, P., Kulander, B.R., Wilson, B.D., Dean, S.L., and
> Woodring, S.M., 1976, West Virginia landslides and slide-prone areas:
> West Virginia Geological and Economics Survey Environmental Geology
> Bulletin, v. 15, no. 64, 23 sheets, scale 1:24,000. \[1 POLY (2,4)\]
>
> 7\. \_\_\_1982, Landslides and related features of the Barnabus, WV
> quadrangle: U.S. Geological Survey Open-File Report 82-51, scale
> 1:24,000. \[1 POLY (7)\]
>
> 15\. \_\_\_ 1982, Landslides and related features of the Chapmanville,
> WV quadrangle: U.S. Geological Survey Open-File Report 80-194, scale
> 1:24,000. \[1 POLY (15)\]
>
> 17\. \_\_\_1982, Landslides and related features of the Delbarton, WV
> quadrangle: U.S. Geological Survey Open-File Report 82-51, scale
> 1:24,000. \[1 POLY (17)\]
>
> 22\. \_\_\_ 1982, Landslides and related features of the Holdon, WV
> quadrangle: U.S. Geological Survey Open-File Report 82-51, scale
> 1:24,000. \[1 POLY (22)\]
>
> 24\. \_\_\_ 1982, Landslides and related features of the Kermit, WV
> quadrangle: U.S. Geological Survey Open-File Report 82-51, scale
> 1:24,000. \[1 POLY (24)\]
>
> 29\. Outerbridge, W.F., 1982, Landslides and related features of the
> Majestic, WV quadrangle: U.S. Geological Survey Open-File Report
> 82-51, scale 1:24,000. \[1 POLY (29)\]
>
> 30\. \_\_\_1982, Landslides and related features of the Matewan, WV
> quadrangle: U.S. Geological Survey Open-File Report 82-51, scale
> 1:24,000. \[1 POLY (30)\]
>
> 36\. \_\_\_ 1982, Landslides and related features of the Myrtle, WV
> quadrangle: U.S. Geological Survey Open-File Report 82-51, scale
> 1:24,000. \[1 POLY (36)\]
>
> 37\. \_\_\_ 1982, Landslides and related features of the Naugatuck, WV
> quadrangle: U.S. Geological Survey Open-File Report 82-51, scale
> 1:24,000. \[1 POLY (37)\]
>
> 45\. \_\_\_1982, Landslides and related features of the Trace, WV
> quadrangle: U.S. Geological Survey Open-File Report 82-51, scale
> 1:24,000. \[1 POLY (45)\]
>
> 47\. \_\_\_ 1982, Landslides and related features of the Webb, WV
> quadrangle: U.S. Geological Survey Open-File Report 82-51, scale
> 1:24,000. \[1 POLY (47)\]
>
> 49\. \_\_\_ 1982, Landslides and related features of the Webb, WV
> quadrangle: U.S. Geological Survey Open-File Report 82-51, scale
> 1:24,000. \[1 POLY (49)\]
>
> 50\. \_\_\_1982, Landslides and related features of the Wilsondale, WV
> quadrangle: U.S. Geological Survey Open-File Report 82-51, scale
> 1:24,000. \[1 POLY (50)\]
>
> 3\. Schneider, R.H., 1973, Debris slides and related flood damage
> resulting from Hurricane Camille, 19-20 August and subsequent storm,
> 5-6 September, 1969, in the Spring Creek drainage basin, Greenbrier
> County, West Virginia: University of Tennessee, unpublished Ph. D.
> thesis, 131 p. \[1 PT (3)\]
>
> 8\. Thomas, R.E., and Hackman, R.J., 1979, Landslides and related
> features of the Bergton, WV quadrangle: U.S. Geological Survey
> Open-File Report 80-194, scale 1:24,000. \[1 POLY (8)\]
>
> 10\. \_\_\_1979, Landslides and related features of the Durbin, WV
> quadrangle: U.S. Geological Survey Open-File Report 80-194, scale
> 1:24,000. \[1 POLY (10)\]
>
> 13\. \_\_\_1979, Landslides and related features of the Brandywine, WV
> quadrangle: U.S. Geological Survey Open-File Report 80-194, scale
> 1:24,000. \[1 POLY (13)\]
>
> 16\. \_\_\_ 1979, Landslides and related features of the Circleville,
> WV quadrangle: U.S. Geological Survey Open-File Report 80-194, scale
> 1:24,000. \[1 POLY (16),1 POLY (5,16,52)\]
>
> 18\. \_\_\_1979, Landslides and related features of the Elkins, WV
> quadrangle: U.S. Geological Survey Open-File Report 80-194, scale
> 1:24,000. \[1 POLY (18)\]
>
> 19\. \_\_\_1979, Landslides and related features of the Fort Seybert,
> WV quadrangle: U.S. Geological Survey Open-File Report 80-194, scale
> 1:24,000. \[1 POLY (19)\]
>
> 20\. \_\_\_1979, Landslides and related features of the Franklin, WV
> quadrangle: U.S. Geological Survey Open-File Report 80-194, scale
> 1:24,000. \[1 POLY (20), 1 POLY (5,20,52)\]
>
> 21\. \_\_\_1979, Landslides and related features of the Glady, WV
> quadrangle: U.S. Geological Survey Open-File Report 80-194, scale
> 1:24,000. \[1 POLY (21)\]
>
> 23\. \_\_\_1979, Landslides and related features of the Hopeville, WV
> quadrangle: U.S. Geological Survey Open-File Report 80-194, scale
> 1:24,000. \[1 POLY (23), 1 POLY (5,23,52)\]
>
> 26\. \_\_\_1979, Landslides and related features of the Lost City, WV
> quadrangle: U.S. Geological Survey Open-File Report 80-194, scale
> 1:24,000. \[1 POLY (26)\]
>
> 27\. \_\_\_1979, Landslides and related features of the Lost River
> State Park, WV quadrangle: U.S. Geological Survey Open-File Report
> 80-194, scale 1:24,000. \[1 POLY (27)\]
>
> 28\. \_\_\_1979, Landslides and related features of the Harman, WV
> quadrangle: U.S. Geological Survey Open-File Report 80-194, scale
> 1:24,000. \[1 POLY (28)\]
>
> 31\. \_\_\_1979, Landslides and related features of the Milan, WV
> quadrangle: U.S. Geological Survey Open-File Report 80-194, scale
> 1:24,000. \[1 POLY (31)\]
>
> 32\. \_\_\_1979, Landslides and related features of the Mill Creek, WV
> quadrangle: U.S. Geological Survey Open-File Report 80-194, scale
> 1:24,000. \[1 POLY (32)\]
>
> 34\. \_\_\_1979, Landslides and related features of the Moatstown, WV
> quadrangle: U.S. Geological Survey Open-File Report 80-194, scale
> 1:24,000. \[1 POLY (34)\]
>
> 35\. \_\_\_1979, Landslides and related features of the Mozer, WV
> quadrangle: U.S. Geological Survey Open-File Report 80-194, scale
> 1:24,000. \[1 POLY (35)\]
>
> 38\. \_\_\_1979, Landslides and related features of the Onego, WV
> quadrangle: U.S. Geological Survey Open-File Report 80-194, scale
> 1:24,000. \[1 POLY (38),1 POLY (5,38,52)\]
>
> 40\. \_\_\_1979, Landslides and related features of the Palo Alto, WV
> quadrangle: U.S. Geological Survey Open-File Report 80-194, scale
> 1:24,000. \[1 POLY (40), 1 POLY (2,40)\]
>
> 41\. \_\_\_1979, Landslides and related features of the Petersburg
> West, WV quadrangle: U.S. Geological Survey Open-File Report 80-194,
> scale 1:24,000. \[1 POLY (41)\]
>
> 42\. \_\_\_1979, Landslides and related features of the Snyder Knob,
> WV quadrangle: U.S. Geological Survey Open-File Report 80-194, scale
> 1:24,000. \[1 POLY (42)\]
>
> 43\. \_\_\_1979, Landslides and related features of the Spruce Knob,
> WV quadrangle: U.S. Geological Survey Open-File Report 80-194, scale
> 1:24,000. \[1 POLY (43),1 POLY (5,43,52)\]
>
> 44\. \_\_\_1979, Landslides and related features of the Thornwood, WV
> quadrangle: U.S. Geological Survey Open-File Report 80-194, scale
> 1:24,000. \[1 POLY (44)\]
>
> 46\. \_\_\_1979, Landslides and related features of the Upper Tract,
> WV quadrangle: U.S. Geological Survey Open-File Report 80-194, scale
> 1:24,000. \[1 POLY (46), 1 POLY (5,46,52)\]
>
> 51\. \_\_\_1979, Landslides and related features of the Upper Tract,
> WV quadrangle: U.S. Geological Survey Open-File Report 80-194, scale
> 1:24,000. \[1 POLY (51)\]
>
> 9\. \_\_\_1980, Landslides and related features of the Beverly East,
> WV quadrangle: U.S. Geological Survey Open-File Report 80-194, scale
> 1:24,000. \[1 POLY (9)\]
>
> 11\. \_\_\_1980, Landslides and related features of the Beverly West,
> WV quadrangle: U.S. Geological Survey Open-File Report 80-194, scale
> 1:24,000. \[1 POLY (11)\]
>
> 12\. \_\_\_1980, Landslides and related features of the Bowden, WV
> quadrangle: U.S. Geological Survey Open-File Report 80-194, scale
> 1:24,000. \[1 POLY (12)\]
>
> 14\. \_\_\_1980, Landslides and related features of the Cass, WV
> quadrangle: U.S. Geological Survey Open-File Report 80-194, scale
> 1:24,000. \[1 POLY (14)\]
>
> 25\. \_\_\_1980, Landslides and related features of the Laneville, WV
> quadrangle: U.S. Geological Survey Open-File Report 80-194, scale
> 1:24,000. \[1 POLY (25)\]
>
> 33\. \_\_\_1980, Landslides and related features of the Minnehaha
> Springs, WV quadrangle: U.S. Geological Survey Open-File Report
> 80-194, scale 1:24,000. \[1 POLY (33)\]
>
> 39\. \_\_\_1980, Landslides and related features of the Paddy Knob, WV
> quadrangle: U.S. Geological Survey Open-File Report 80-194, scale
> 1:24,000. \[1 POLY (39)\]
>
> 48\. \_\_\_1980, Landslides and related features of the Whitmer, WV
> quadrangle: U.S. Geological Survey Open-File Report 80-194, scale
> 1:24,000. \[1 POLY (48)\]
>
> **Wyoming**
>
> 1\. Bailey, R G., 1971, Landslide hazards related to land use planning
> in Teton National Forest, northwest Wyoming: U.S. Forest Service,
> Intermountain Region, 131 p.
>
> 3\. Holland, T.W., and Everitt, M.C., 1974, The Shell Canyon
> landslides, a geological engineering case history, *in* Voight, B.,
> and Voight, M.A., eds., Rock mechanics, the American Northwest:
> Pennsylvania State University, University Park, PA, p. 37-44. \[1 PT
> (3,7)\]
>
> 4\. Jensen, J.M., 1983, The upper Gros Ventre landslide of Wyoming; A
> dendronology of landslide events and the possible mechanics of
> failure: Geological Society of America, Abstracts with Programs, v.
> 15, no. 5, p. 387. \[1 PT (4,5,6,8)\]
>
> 5\. Keefer, W.R., and Love, J.D., 1956, Landslides along the Gros
> Ventre River, Teton County, Wyoming: Wyoming Geological Association,
> 11th Annual Field Conference Guidebook, p. 24-28. \[1 PT (4,5,6,8)\]
>
> 6\. Lawrence, D.B., and Lawrence, E.G., 1958, Historic landslides of
> the Gros Ventre Valley, Wyoming: Mazama, v. 40, no. 13, p. 42-52. \[1
> PT (4,5,6,8)\]
>
> 9\. Meyer, G.A., and Wells, S.G., 1997, Fire-related sedimentation
> events on alluvial fans, Yellowstone National Park, U.S.A.: Journal of
> Sedimentary Research, Section A.: Sedimentary Petrology and Process,
> v. 67, no. 5, p. 776-791. \[1 PT (9)\]
>
> 8\. Palmquist, R.C., Cloud, T.A., Jensen, J., 1981, Landslide history,
> middle reach of Gros Ventre River Valley, Wyoming: National Geographic
> Research, v. 1, no. 1, p. 152-153. \[1 PT (4,5,6,8)\]
>
> 7\. Schuster, R.L. and Everitt, M.C., 1968, Slope stability problems
> in Shell Canyon, Wyoming \[abs.\]: Geological Society of America
> Abstracts for 1967, Special Paper 115, p. 444-445. \[1 PT (3,7)\]