APPENDIX A 
Representative Project Photographs  May 2005 Monitoring Trip Report 
Management & Control of Tamarisk and Other Invasive Vegetation at Backcountry Seeps, 

Springs and Tributaries in Grand Canyon National Park 
Text Box: APPENDIX A Representative Project Photographs  May 2005 Monitoring Trip Report Management & Control of Tamarisk and Other Invasive Vegetation at Backcountry Seeps, Springs and Tributaries in Grand Canyon National Park
Picture 1. The hard working crew Picture 2. Transportation to work sites 

Picture 3. Hydrology team at work Picture 4. Documenting plants close up 

Picture 5. Crystal Transect 1A start view 2, showing Picture 6. Bright Angel Creek Transect 1A start, dense tamarisk near creek. view 2, showing tamarisk and native plants. 
Appendix A-1 
APPENDIX A 
Representative Project Photographs  May 2005 Monitoring Trip Report 
Management & Control of Tamarisk and Other Invasive Vegetation at Backcountry Seeps, 
Springs and Tributaries in Grand Canyon National Park 

Picture 7. Transect through native vegetation. Picture 8. Botanists collecting plant specimens, Crystal Creek transect area. 

Picture 9. Collecting point intercept data, Picture 10. Sonchus oleraceus bouquet at Upper Carbon transect. 36.5 Mile project area. 
Appendix A-2 
APPENDIX A 
Representative Project Photographs  May 2005 Monitoring Trip Report 
Management & Control of Tamarisk and Other Invasive Vegetation at Backcountry Seeps, 
Springs and Tributaries in Grand Canyon National Park 


Appendix A-3 
Appendix B - Monitoring Transect Data 
Canyon/Park Bright Angel Creek River mile: 88 R
Transect Name: Bright Angel Creek Transect 1 Type: Tamarisk area
Date: 6/7/2005 Weather: Clear, sunny, breezy
Start point: End point:
Easting 403720 Easting 403709
Northing 3999437 Northing 3999427
GPS accuracy (m) 11.7 GPS accuracy (m) 16.3
Bearing: 196 Elevation (m): 967
Aspect (0-360): 230 Slope (degrees): 2
Transect description: Transect is located 12km (7.5 miles) from Phantom Ranch heading north on N. Kaibab trail.
Geological layer: Vishnu schist metomorphic complex.  Note also limestone in surface rock category.

Habitat type: Riparian
Dominant species: Salix exigua Nutt., Isocoma acradenia (Greene) Greene, Tamarix ramosissima Ledeb.
Associated species: Datura wrightii Regel, Bromus tectorum L., Gnaphalium chilense, Stephanomeria pauciflora (Torr.) A.

Nels., Silene antirrhina L., Maurandella antirrhiniflora (Humb. & Bonpl. ex Willd.) Rothm., Poa bigelovii
Vasey & Scribn., Erigeron lobatus A. Nels., Aristida purpurea Nutt., Artemisia ludoviciana Nutt., Sonchus asper (L.) Hill,
Bernardia incana Morton, Brickellia longifolia S. Wats., Cryptantha spp., Bromus rubens L., Bromus diandrus Roth, Acacia
greggii Gray, Vulpia microstachys, Bebbia juncea (Benth.) Greene var. aspera Greene, Sporobolus cryptandrus (Torr.) Gray,
Porophyllum gracile Benth., Cynodon dactylon (L.) Pers., Ephedra fasciculata A. Nels., Baccharis salicifolia (Ruiz & Pavn)
Pers.

Surface water within 25 m? Surface water type: stream Surface rocks: cobbles sandstone Landform: Drainage channel Light exposure: open partial-shade Soil type: sand Soil moisture: dry 
Point Intercept Transect (50m) % Cover Bare Soil 10 Boulder 3 Coarse woody debris 26 Cobble 10 Gravel 16 Litter (duff) 75 Stone 3 Woody debris structure 4 Aristida purpurea Nutt. 2 Baccharis salicifolia (Ruiz & Pavn) Pers. 3 Brickellia longifolia S. Wats. 4 Bromus rubens L. 58 Bromus tectorum L. 9 Cynodon dactylon (L.) Pers. 7 Isocoma acradenia (Greene) Greene 5 Maurandella antirrhiniflora (Humb. & Bonpl. ex Willd.) Rothm. 2 Porophyllum gracile Benth. 3 Salix exigua Nutt. 5 Sporobolus cryptandrus (Torr.) Gray 1 Stephanomeria pauciflora (Torr.) A. Nels. 1 Tamarix ramosissima Ledeb. 32 Vulpia octoflora 5 
Daubenmire Scale Cover Data from 50m Transect 
Ground Cover Category  Meters  Cover Scale  
Bare Soil  15  1 <1%  
Bare Soil  25  1 <1%  
Bare Soil  35  1 <1%  
Bare Soil  45  1 <1%  
Coarse woody debris  5  2 1-5%  
Coarse woody debris  15  3 5-10%  
Coarse woody debris  25  5 25-50%  

Coarse woody debris  35  2 1-5%  
Coarse woody debris  45  3 5-10%  
Cobble  5  1 <1%  
Cobble  15  2 1-5%  
Cobble  25  4 10-25%  
Cobble  35  4 10-25%  
Cobble  45  3 5-10%  
Gravel  5  1 <1%  
Gravel  15  2 1-5%  
Gravel  25  3 5-10%  
Gravel  35  3 5-10%  
Gravel  45  2 1-5%  
Litter (duff)  5  7 75-100%  
Litter (duff)  15  7 75-100%  
Litter (duff)  25  6 50-75%  
Litter (duff)  35  5 25-50%  
Litter (duff)  45  6 50-75%  
Sand  5  3 5-10%  
Sand  15  2 1-5%  
Sand  25  3 5-10%  
Sand  35  3 5-10%  
Sand  45  1 <1%  
Stone  5  2 1-5%  
Stone  15  3 5-10%  
Stone  25  4 10-25%  
Stone  35  4 10-25%  
Stone  45  3 5-10%  
Woody debris structure  35  1 <1%  
Woody debris structure  45  2 1-5%  
Species Name  Meters  Tree Age  Cover Scale  
Acacia greggii Gray  5  M Mature  1 <1%  
Aristida purpurea Nutt.  45  1 <1%  
Artemisia ludoviciana Nutt.  45  2 1-5%  
Baccharis salicifolia (Ruiz & Pavn) Pers.  5  2 1-5%  
Baccharis salicifolia (Ruiz & Pavn) Pers.  15  2 1-5%  
Baccharis salicifolia (Ruiz & Pavn) Pers.  25  3 5-10%  
Bebbia juncea (Benth.) Greene var. aspera Greene  25  2 1-5%  
Bebbia juncea (Benth.) Greene var. aspera Greene  45  2 1-5%  
Bernardia incana Morton  15  2 1-5%  
Bernardia incana Morton  35  2 1-5%  
Bernardia incana Morton  45  2 1-5%  
Brickellia longifolia S. Wats.  5  4 10-25%  
Brickellia longifolia S. Wats.  15  4 10-25%  
Brickellia longifolia S. Wats.  35  2 1-5%  
Brickellia longifolia S. Wats.  45  3 5-10%  
Bromus diandrus Roth  5  5 25-50%  
Bromus diandrus Roth  25  1 <1%  
Bromus rubens L.  5  5 25-50%  
Bromus rubens L.  15  6 50-75%  
Bromus rubens L.  25  4 10-25%  
Bromus rubens L.  35  3 5-10%  

Bromus rubens L.  45  5 25-50%  
Bromus tectorum L.  5  2 1-5%  
Bromus tectorum L.  15  1 <1%  
Bromus tectorum L.  45  1 <1%  
Cryptantha spp.  5  1 <1%  
Cryptantha spp.  35  1 <1%  
Cryptobiotic soil  5  3 5-10%  
Cryptobiotic soil  15  1 <1%  
Cryptobiotic soil  25  2 1-5%  
Cryptobiotic soil  35  3 5-10%  
Cryptobiotic soil  45  2 1-5%  
Cynodon dactylon (L.) Pers.  15  2 1-5%  
Cynodon dactylon (L.) Pers.  25  3 5-10%  
Cynodon dactylon (L.) Pers.  45  3 5-10%  
Datura wrightii Regel  25  2 1-5%  
Datura wrightii Regel  35  1 <1%  
Datura wrightii Regel  45  1 <1%  
Erigeron lobatus A. Nels.  45  1 <1%  
Gnaphalium chilense  25  1 <1%  
Isocoma acradenia (Greene) Greene  15  1 <1%  
Isocoma acradenia (Greene) Greene  45  3 5-10%  
Maurandella antirrhiniflora (Humb. & Bonpl. ex Willd.) Rothm.  35  3 5-10%  
Maurandella antirrhiniflora (Humb. & Bonpl. ex Willd.) Rothm.  45  1 <1%  
Poa bigelovii Vasey & Scribn.  35  1 <1%  
Porophyllum gracile Benth.  15  1 <1%  
Porophyllum gracile Benth.  25  2 1-5%  
Porophyllum gracile Benth.  35  2 1-5%  
Porophyllum gracile Benth.  45  1 <1%  
Salix exigua Nutt.  15  5 25-50%  
Salix exigua Nutt.  25  5 25-50%  
Salix exigua Nutt.  35  4 10-25%  
Salix exigua Nutt.  45  3 5-10%  
Silene antirrhina L.  35  1 <1%  
Sonchus asper (L.) Hill  45  1 <1%  
Sporobolus cryptandrus (Torr.) Gray  5  2 1-5%  
Stephanomeria pauciflora (Torr.) A. Nels.  25  1 <1%  
Stephanomeria pauciflora (Torr.) A. Nels.  35  2 1-5%  
Stephanomeria pauciflora (Torr.) A. Nels.  45  2 1-5%  
Tamarix ramosissima Ledeb.  5  5 25-50%  
Tamarix ramosissima Ledeb.  15  6 50-75%  
Tamarix ramosissima Ledeb.  25  4 10-25%  
Tamarix ramosissima Ledeb.  45  4 10-25%  
Vulpia microstachys  5  1 <1%  

Vegetation Structure Data 
Species Name  Meters  # of Hits  Height  
Sporobolus cryptandrus (Torr.) Gray  5  7  0-1.0  
Tamarix ramosissima Ledeb.  5  2  0-1.0  
Tamarix ramosissima Ledeb.  5  10  1-2  
Bromus rubens L.  15  9  0-1.0  
Tamarix ramosissima Ledeb.  15  3  1-2  
Tamarix ramosissima Ledeb.  15  15  2-3  
Salix exigua Nutt.  25  2  0-1.0  
Bromus rubens L.  45  3  0-1.0  
Isocoma acradenia (Greene) Greene  45  3  0-1.0  
Tamarix ramosissima Ledeb.  45  1  1-2  
Tamarix ramosissima Ledeb.  45  18  0-1.0  

Soil Data 
Meters  Probe depth (cm)  Reading 1  Reading 2  Reading 3  Average Reading  
5  9  0  0  0  0.00  
15  4  0  0  0.03  0.01  
25  3  0.03  0  0  0.01  
35  4  0  0  0  0.00  
45  4  0.01  0  0.01  0.01  

Canyon/Park  Bright Angel Creek  River mile:  88 R  
Transect Name:  Bright Angel Creek Transect 2  Type:  Tamarisk area  
Date:  6/7/2005  Weather:  Sunny, no clouds, VERY hot!  
Start point:  End point:  
Easting  404343  Easting  404302  
Northing  4000313  Northing  4000280  
GPS accuracy (m)  6.2  GPS accuracy (m)  7.7  
Bearing:  230  Elevation (m):  1025  
Aspect (0-360):  210  Slope (degrees):  4  

Transect description:	In a side drainage on creek left of Bright Angel Creek, near the trail, 6.5km (~4miles) up from Phantom Ranch. About 2.5km (~1.5 miles) downcreek from Ribbon Falls. Further up canyon on creek left is small, shallow canyon coming in. 
Geological layer: Granite and schist Habitat type: Riparian Great Basin desert scrub Dominant species: Bromus rubens L., Tamarix ramosissima Ledeb., Artemisia dracunculus L., Acacia greggii Gray, Fallugia 
paradoxa (D. Don) Endl. ex Torr., Isocoma acradenia (Greene) Greene 
Associated species:	Brickellia longifolia S. Wats., Bromus tectorum L., Cryptobiotic soil, Erodium cicutarium (L.) L'Hr. ex Ait., Bothriochloa barbinodis (Lag.) Herter, Aristida adscensionis L., Vitis arizonica Engelm., Tridens muticus (Torr.) Nash, Argemone spp., Rhus trilobata Nutt. var. simplicifolia (Greene) Barkl., Gutierrezia sarothrae (Pursh) Britt. & Rusby, Achnatherum speciosum (Trin. & Rupr.) Barkworth, Aristida purpurea Nutt., Stephanomeria pauciflora (Torr.) A. Nels., Opuntia phaeacantha Engelm., Cynodon dactylon (L.) Pers., Datura wrightii Regel, Vulpia microstachys, Bromus diandrus Roth, Poa bigelovii Vasey & Scribn., Plantago patagonica Jacq., Astragalus nuttallianus DC., Poa fendleriana (Steud.) Vasey, Salix exigua Nutt., Sporobolus contractus A.S. Hitchc., Sporobolus cryptandrus (Torr.) Gray, Muhlenbergia porteri Scribn. ex Beal, Opuntia basilaris Engelm. & Bigelow, Mirabilis bigelovii Gray, Lepidium lasiocarpum Nutt. var. lasiocarpum, Yucca baccata Torr. 
Surface water within 25 m? Surface water type: stream Surface rocks: sandstone limestone Landform: Drainage channel Light exposure: open Soil type: sand Soil moisture: dry 
Point Intercept Transect (50m)	% Cover 
Bare Soil	18 
Coarse woody debris	36 
Gravel	3 
Litter (duff)	73 
Stone	4 
Woody debris structure	7 
Acacia greggii Gray	1 
Achnatherum hymenoides (Roemer & J.A. Schultes) Barkworth 1 
Achnatherum speciosum (Trin. & Rupr.) Barkworth	1 
Artemisia dracunculus L.	21 
Brickellia longifolia S. Wats.	11 
Bromus diandrus Roth	5 
Bromus rubens L.	51 
Cryptantha spp.	1 
Erodium cicutarium (L.) L'Hr. ex Ait.	1 
Fallugia paradoxa (D. Don) Endl. ex Torr.	11 
Isocoma acradenia (Greene) Greene	1 
Salix exigua Nutt.	3 
Tamarix ramosissima Ledeb.	27 
Vulpia microstachys	9 
Daubenmire Scale Cover Data from 50m Transect 
Ground Cover Category  Meters  Cover Scale  
Bare Soil  5  1 <1%  
Bare Soil  15  1 <1%  
Bare Soil  25  1 <1%  
Boulder  25  1 <1%  
Boulder  35  2 1-5%  
Boulder  45  2 1-5%  
Coarse woody debris  15  2 1-5%  

Coarse woody debris  25  2 1-5%  
Coarse woody debris  35  2 1-5%  
Cobble  5  1 <1%  
Cobble  15  3 5-10%  
Cobble  25  2 1-5%  
Cobble  35  2 1-5%  
Cobble  45  1 <1%  
Gravel  15  2 1-5%  
Gravel  25  2 1-5%  
Gravel  35  1 <1%  
Litter (duff)  5  6 50-75%  
Litter (duff)  15  5 25-50%  
Litter (duff)  25  5 25-50%  
Litter (duff)  35  7 75-100%  
Litter (duff)  45  7 75-100%  
Sand  5  1 <1%  
Sand  15  2 1-5%  
Sand  25  2 1-5%  
Sand  35  2 1-5%  
Sand  45  1 <1%  
Stone  15  2 1-5%  
Stone  25  3 5-10%  
Stone  35  2 1-5%  
Stone  45  1 <1%  
Woody debris structure  15  1 <1%  
Woody debris structure  45  2 1-5%  
Species Name  Meters  Tree Age  Cover Scale  
Acacia greggii Gray  15  2 1-5%  
Acacia greggii Gray  25  1 <1%  
Achnatherum speciosum (Trin. & Rupr.) Barkworth  15  1 <1%  
Aristida adscensionis L.  15  1 <1%  
Aristida purpurea Nutt.  15  2 1-5%  
Aristida purpurea Nutt.  25  1 <1%  
Aristida purpurea Nutt.  35  1 <1%  
Artemisia dracunculus L.  5  3 5-10%  
Artemisia dracunculus L.  15  2 1-5%  
Artemisia dracunculus L.  25  2 1-5%  
Artemisia dracunculus L.  35  2 1-5%  
Artemisia ludoviciana Nutt.  15  2 1-5%  
Astragalus nuttallianus DC.  15  1 <1%  
Astragalus nuttallianus DC.  25  1 <1%  
Bothriochloa barbinodis (Lag.) Herter  15  1 <1%  
Brickellia longifolia S. Wats.  5  1 <1%  
Brickellia longifolia S. Wats.  15  4 10-25%  
Brickellia longifolia S. Wats.  25  4 10-25%  
Brickellia longifolia S. Wats.  35  4 10-25%  
Brickellia longifolia S. Wats.  45  5 25-50%  
Bromus diandrus Roth  25  1 <1%  
Bromus diandrus Roth  35  3 5-10%  
Bromus diandrus Roth  45  3 5-10%  

Bromus rubens L.  5  3 5-10%  
Bromus rubens L.  15  3 5-10%  
Bromus rubens L.  25  3 5-10%  
Bromus rubens L.  35  5 25-50%  
Bromus rubens L.  45  5 25-50%  
Bromus tectorum L.  15  1 <1%  
Bromus tectorum L.  25  1 <1%  
Bromus tectorum L.  35  3 5-10%  
Cryptantha spp.  35  1 <1%  
Cryptobiotic soil  15  6 50-75%  
Cryptobiotic soil  25  6 50-75%  
Cryptobiotic soil  35  3 5-10%  
Cynodon dactylon (L.) Pers.  15  2 1-5%  
Cynodon dactylon (L.) Pers.  25  3 5-10%  
Erodium cicutarium (L.) L'Hr. ex Ait.  15  2 1-5%  
Fallugia paradoxa (D. Don) Endl. ex Torr.  5  6 50-75%  
Fallugia paradoxa (D. Don) Endl. ex Torr.  25  1 <1%  
Fallugia paradoxa (D. Don) Endl. ex Torr.  35  3 5-10%  
Fallugia paradoxa (D. Don) Endl. ex Torr.  45  3 5-10%  
Gutierrezia sarothrae (Pursh) Britt. & Rusby  15  1 <1%  
Isocoma acradenia (Greene) Greene  5  2 1-5%  
Isocoma acradenia (Greene) Greene  15  1 <1%  
Isocoma acradenia (Greene) Greene  25  2 1-5%  
Isocoma acradenia (Greene) Greene  35  1 <1%  
Isocoma acradenia (Greene) Greene  45  2 1-5%  
Lepidium lasiocarpum Nutt. var. lasiocarpum  25  1 <1%  
Lepidium lasiocarpum Nutt. var. lasiocarpum  35  1 <1%  
Mirabilis bigelovii Gray  15  2 1-5%  
Mirabilis bigelovii Gray  25  1 <1%  
Muhlenbergia porteri Scribn. ex Beal  5  1 <1%  
Muhlenbergia porteri Scribn. ex Beal  35  1 <1%  
Opuntia basilaris Engelm. & Bigelow  15  1 <1%  
Opuntia phaeacantha Engelm.  15  2 1-5%  
Plantago patagonica Jacq.  5  1 <1%  
Plantago patagonica Jacq.  15  1 <1%  
Plantago patagonica Jacq.  25  2 1-5%  
Plantago patagonica Jacq.  35  1 <1%  
Poa bigelovii Vasey & Scribn.  5  1 <1%  
Poa fendleriana (Steud.) Vasey  15  1 <1%  
Salix exigua Nutt.  45  4 10-25%  
Sporobolus contractus A.S. Hitchc.  45  1 <1%  
Sporobolus cryptandrus (Torr.) Gray  5  1 <1%  
Sporobolus cryptandrus (Torr.) Gray  15  2 1-5%  
Sporobolus cryptandrus (Torr.) Gray  25  2 1-5%  
Sporobolus cryptandrus (Torr.) Gray  35  1 <1%  
Stephanomeria pauciflora (Torr.) A. Nels.  15  2 1-5%  
Stephanomeria pauciflora (Torr.) A. Nels.  25  2 1-5%  
Stephanomeria pauciflora (Torr.) A. Nels.  35  1 <1%  
Tamarix ramosissima Ledeb.  5  4 10-25%  
Tamarix ramosissima Ledeb.  35  4 10-25%  
Tamarix ramosissima Ledeb.  45  6 50-75%  
Tridens muticus (Torr.) Nash  15  1 <1%  
Tridens muticus (Torr.) Nash  25  1 <1%  
Vitis arizonica Engelm.  25  1 <1%  
Vulpia microstachys  5  2 1-5%  
Vulpia microstachys  15  2 1-5%  
Vulpia microstachys  25  1 <1%  

Vulpia microstachys 
35 
2 1-5% 
Vegetation Structure Data 
Species Name  Meters  # of Hits  Height  
Artemisia dracunculus L.  5  3  0-1.0  
Bromus rubens L.  5  2  0-1.0  
Artemisia dracunculus L.  15  4  0-1.0  
Bromus rubens L.  15  4  0-1.0  
Bromus rubens L.  25  2  0-1.0  
Artemisia dracunculus L.  35  5  1-2  
Artemisia dracunculus L.  35  9  0-1.0  
Bromus rubens L.  45  5  0-1.0  
Tamarix ramosissima Ledeb.  45  3  1-2  
Tamarix ramosissima Ledeb.  45  5  2-3  
Tamarix ramosissima Ledeb.  45  5  0-1.0  

Soil Data 
Meters  Probe depth (cm)  Reading 1  Reading 2  Reading 3  Average Reading  
5  8  0  0  0  0.00  
15  4  0.01  0  0  0.00  
25  8  0  0  0  0.00  
35  8  0  0  0  0.00  
45  4  0.07  0.03  0.04  0.05  

Canyon/Park  Bright Angel Creek  River mile:  88 R  
Transect Name:  Bright Angel Creek Transect 2  Type:  Reference  
Date:  6/7/2005  Weather:  Hot, sunny, breezy  
Start point:  End point:  
Easting  404413  Easting  404369  
Northing  4000348  Northing  4000328  
GPS accuracy (m)  5  GPS accuracy (m)  5.3  
Bearing:  220  Elevation (m):  1033  
Aspect (0-360):  210  Slope (degrees):  5  

Transect description:	Transect start is 7.25km (4.5 miles and 2.5 hours of steady hiking) from Phantom Ranch, where canyon opens up and you start going up hills almost to Ribbon Falls. 
Geological layer: Vishnu schist Habitat type: Riparian Great Basin desert scrub Dominant species: Isocoma acradenia (Greene) Greene, Bromus rubens L., Acacia greggii Gray Associated species: Quercus turbinella Greene, Phlox longifolia Nutt., Ephedra fasciculata A. Nels., Encelia farinosa Gray ex 
Torr., Bebbia juncea (Benth.) Greene var. aspera Greene, Mirabilis bigelovii Gray, Aristida purpurea Nutt., Porophyllum gracile Benth., Erodium cicutarium (L.) L'Hr. ex Ait., Pleuraphis jamesii Torr., Sphaeralcea grossulariifolia (Hook. & Arn.) Rydb., Vulpia microstachys, Sporobolus contractus A.S. Hitchc., Brickellia longifolia S. Wats., Astragalus nuttallianus DC., Sporobolus cryptandrus (Torr.) Gray, Poa bigelovii Vasey & Scribn., Plantago patagonica Jacq., Gutierrezia sarothrae (Pursh) Britt. & Rusby, Yucca baccata Torr., Opuntia phaeacantha Engelm., Echinocereus engelmannii (Parry ex Engelm.) Lem., Fallugia paradoxa (D. Don) Endl. ex Torr., Argemone munita Dur. & Hilg., Agave utahensis Engelm., Achnatherum hymenoides (Roemer & J.A. Schultes) Barkworth, Elymus elymoides (Raf.) Swezey, Artemisia ludoviciana Nutt., Opuntia basilaris Engelm. & Bigelow, Heterotheca villosa (Pursh) Shinners, Stephanomeria pauciflora (Torr.) A. Nels., Bouteloua eriopoda (Torr.) Torr., Thymophylla pentachaeta (DC.) Small, Bothriochloa barbinodis (Lag.) Herter, Descurainia pinnata (Walt.) Britt., Cryptobiotic soil, Achnatherum speciosum (Trin. & Rupr.) Barkworth, Ericameria nauseosa (Pallas ex Pursh) Nesom & Baird, Lepidium lasiocarpum Nutt. var. lasiocarpum 
Surface water within 25 m? Surface water type: stream Surface rocks: schist granite Landform: Drainage channel Light exposure: open Soil type: sand Soil moisture: dry 
Point Intercept Transect (50m) % Cover Bare Soil 34 Boulder 15 Coarse woody debris 18 Cobble 15 Gravel 12 Litter (duff) 26 Stone 6 Woody debris structure 4 Acacia greggii Gray 7 Achnatherum speciosum (Trin. & Rupr.) Barkworth 3 Agave utahensis Engelm. 1 Bromus rubens L. 18 Fallugia paradoxa (D. Don) Endl. ex Torr. 3 Gutierrezia sarothrae (Pursh) Britt. & Rusby 1 Heterotheca villosa (Pursh) Shinners 2 Isocoma acradenia (Greene) Greene 19 Salix exigua Nutt. 1 Sporobolus cryptandrus (Torr.) Gray 2 Vulpia microstachys 5 
Daubenmire Scale Cover Data from 50m Transect 
Ground Cover Category  Meters  Cover Scale  
Bare Soil  5  1 <1%  
Bare Soil  15  1 <1%  
Bare Soil  35  1 <1%  
Bare Soil  45  1 <1%  
Bedrock  5  3 5-10%  
Bedrock  15  1 <1%  
Boulder  5  3 5-10%  

Boulder  15  3 5-10%  
Boulder  25  4 10-25%  
Boulder  35  3 5-10%  
Boulder  45  4 10-25%  
Coarse woody debris  5  1 <1%  
Coarse woody debris  15  2 1-5%  
Coarse woody debris  25  2 1-5%  
Coarse woody debris  35  1 <1%  
Coarse woody debris  45  2 1-5%  
Cobble  5  4 10-25%  
Cobble  15  2 1-5%  
Cobble  25  2 1-5%  
Cobble  35  2 1-5%  
Cobble  45  2 1-5%  
Gravel  5  5 25-50%  
Gravel  15  4 10-25%  
Gravel  25  2 1-5%  
Gravel  35  3 5-10%  
Gravel  45  2 1-5%  
Litter (duff)  5  2 1-5%  
Litter (duff)  15  4 10-25%  
Litter (duff)  25  3 5-10%  
Litter (duff)  35  3 5-10%  
Litter (duff)  45  3 5-10%  
Sand  5  1 <1%  
Sand  15  2 1-5%  
Sand  25  1 <1%  
Sand  35  1 <1%  
Sand  45  2 1-5%  
Stone  5  4 10-25%  
Stone  15  3 5-10%  
Stone  25  4 10-25%  
Stone  35  4 10-25%  
Stone  45  2 1-5%  
Woody debris structure  5  1 <1%  
Woody debris structure  15  2 1-5%  
Species Name  Meters  Tree Age  Cover Scale  
Acacia greggii Gray  5  3 5-10%  
Acacia greggii Gray  25  2 1-5%  
Acacia greggii Gray  35  3 5-10%  
Acacia greggii Gray  45  3 5-10%  
Achnatherum hymenoides (Roemer & J.A. Schultes) Barkworth  45  1 <1%  
Achnatherum speciosum (Trin. & Rupr.) Barkworth  5  2 1-5%  
Achnatherum speciosum (Trin. & Rupr.) Barkworth  25  1 <1%  
Achnatherum speciosum (Trin. & Rupr.) Barkworth  35  1 <1%  
Achnatherum speciosum (Trin. & Rupr.) Barkworth  45  2 1-5%  
Agave utahensis Engelm.  35  1 <1%  
Agave utahensis Engelm.  45  2 1-5%  
Aristida purpurea Nutt.  5  2 1-5%  
Aristida purpurea Nutt.  15  2 1-5%  

Aristida purpurea Nutt.  25  2 1-5%  
Aristida purpurea Nutt.  35  1 <1%  
Artemisia ludoviciana Nutt.  35  1 <1%  
Astragalus nuttallianus DC.  5  1 <1%  
Astragalus nuttallianus DC.  15  1 <1%  
Astragalus nuttallianus DC.  25  1 <1%  
Astragalus nuttallianus DC.  35  1 <1%  
Astragalus nuttallianus DC.  45  1 <1%  
Bebbia juncea (Benth.) Greene var. aspera Greene  25  1 <1%  
Bothriochloa barbinodis (Lag.) Herter  5  2 1-5%  
Bothriochloa barbinodis (Lag.) Herter  15  2 1-5%  
Bothriochloa barbinodis (Lag.) Herter  35  1 <1%  
Bouteloua eriopoda (Torr.) Torr.  25  1 <1%  
Brickellia longifolia S. Wats.  35  1 <1%  
Bromus rubens L.  5  2 1-5%  
Bromus rubens L.  15  1 <1%  
Bromus rubens L.  25  2 1-5%  
Bromus rubens L.  35  2 1-5%  
Bromus rubens L.  45  4 10-25%  
Cryptantha spp.  15  1 <1%  
Cryptantha spp.  25  1 <1%  
Cryptantha spp.  45  1 <1%  
Cryptobiotic soil  5  1 <1%  
Cryptobiotic soil  15  1 <1%  
Cryptobiotic soil  25  5 25-50%  
Cryptobiotic soil  35  4 10-25%  
Cryptobiotic soil  45  5 25-50%  
Descurainia pinnata (Walt.) Britt.  5  1 <1%  
Descurainia pinnata (Walt.) Britt.  45  1 <1%  
Echinocereus engelmannii (Parry ex Engelm.) Lem.  45  1 <1%  
Elymus elymoides (Raf.) Swezey  45  1 <1%  
Encelia farinosa Gray ex Torr.  15  2 1-5%  
Ephedra fasciculata A. Nels.  45  1 <1%  
Ericameria nauseosa (Pallas ex Pursh) Nesom & Baird  5  2 1-5%  
Erodium cicutarium (L.) L'Hr. ex Ait.  45  1 <1%  
Fallugia paradoxa (D. Don) Endl. ex Torr.  25  3 5-10%  
Fallugia paradoxa (D. Don) Endl. ex Torr.  35  3 5-10%  
Gutierrezia sarothrae (Pursh) Britt. & Rusby  25  2 1-5%  
Heterotheca villosa (Pursh) Shinners  15  3 5-10%  
Heterotheca villosa (Pursh) Shinners  25  2 1-5%  
Heterotheca villosa (Pursh) Shinners  35  2 1-5%  
Isocoma acradenia (Greene) Greene  5  4 10-25%  
Isocoma acradenia (Greene) Greene  15  4 10-25%  
Isocoma acradenia (Greene) Greene  25  4 10-25%  
Isocoma acradenia (Greene) Greene  35  4 10-25%  
Isocoma acradenia (Greene) Greene  45  5 25-50%  
Lepidium lasiocarpum Nutt. var. lasiocarpum  5  1 <1%  
Lepidium lasiocarpum Nutt. var. lasiocarpum  15  1 <1%  
Lepidium lasiocarpum Nutt. var. lasiocarpum  25  1 <1%  
Lepidium lasiocarpum Nutt. var. lasiocarpum  45  1 <1%  
Mirabilis bigelovii Gray  5  1 <1%  
Mirabilis bigelovii Gray  45  1 <1%  
Opuntia basilaris Engelm. & Bigelow  5  1 <1%  
Opuntia basilaris Engelm. & Bigelow  35  1 <1%  
Opuntia basilaris Engelm. & Bigelow  45  1 <1%  
Opuntia phaeacantha Engelm.  25  1 <1%  
Phlox longifolia Nutt.  25  1 <1%  

Plantago patagonica Jacq.  25  1 <1%  
Plantago patagonica Jacq.  35  1 <1%  
Pleuraphis jamesii Torr.  35  1 <1%  
Poa bigelovii Vasey & Scribn.  5  1 <1%  
Poa bigelovii Vasey & Scribn.  35  1 <1%  
Poa bigelovii Vasey & Scribn.  45  1 <1%  
Porophyllum gracile Benth.  5  1 <1%  
Porophyllum gracile Benth.  35  1 <1%  
Quercus turbinella Greene  15  3 5-10%  
Sphaeralcea grossulariifolia (Hook. & Arn.) Rydb.  45  2 1-5%  
Sporobolus cryptandrus (Torr.) Gray  5  1 <1%  
Sporobolus cryptandrus (Torr.) Gray  15  1 <1%  
Sporobolus cryptandrus (Torr.) Gray  25  1 <1%  
Sporobolus cryptandrus (Torr.) Gray  35  1 <1%  
Sporobolus cryptandrus (Torr.) Gray  45  1 <1%  
Stephanomeria pauciflora (Torr.) A. Nels.  5  1 <1%  
Stephanomeria pauciflora (Torr.) A. Nels.  25  1 <1%  
Stephanomeria pauciflora (Torr.) A. Nels.  35  1 <1%  
Stephanomeria pauciflora (Torr.) A. Nels.  45  1 <1%  
Thymophylla pentachaeta (DC.) Small  35  1 <1%  
Vulpia microstachys  5  1 <1%  
Vulpia microstachys  15  1 <1%  
Vulpia microstachys  25  2 1-5%  
Vulpia microstachys  35  2 1-5%  
Vulpia microstachys  45  2 1-5%  
Yucca baccata Torr.  15  2 1-5%  

Vegetation Structure Data 
Species Name  Meters  # of Hits  Height  
Vulpia microstachys  25  1  0-1.0  
Fallugia paradoxa (D. Don) Endl. ex Torr.  35  9  0-1.0  

Soil Data 
Meters  Probe depth (cm)  Reading 1  Reading 2  Reading 3  Average Reading  
5  6  0.01  0  0  0.00  
15  7  0  0  0  0.00  
25  5  0  0  0  0.00  
35  3  0  0  0  0.00  
45  5  0  0  0  0.00  

Canyon/Park  Carbon Canyon  River mile: 64.7 R  
Transect Name:  Carbon Canyon Transect 4  Type: Tamarisk area  
Date:  5/8/2005  Weather: Blue skies, sunny upper 70-80F  
Start point:  End point:  
Easting  424733  Easting 424704  
Northing  4001731  Northing 4001692  
GPS accuracy (m)  5  GPS accuracy (m) 8  
Bearing:  208  Elevation (m): 988  
Aspect (0-360):  130  Slope (degrees): 6  

Transect description:	Transect is on creek right, starting at reddish sandstone boulder.  Remaining along creek right, ending near where creek bends ~110degrees.  Down creek from forked zone in Carbon drainage. 
Geological layer:	Supergroup 
Habitat type:	Riparian Great Basin desert scrub 
Dominant species:	Bromus rubens L., Tamarix ramosissima Ledeb., Prosopis glandulosa Torr. 
Associated species:	Stanleya pinnata (Pursh) Britt., Calycoseris parryi Gray, Plantago patagonica Jacq., Descurainia pinnata (Walt.) Britt., Gilia scopulorum M.E. Jones, Acacia greggii Gray, Erodium cicutarium (L.) L'Hr. ex Ait., Lepidium spp., Isocoma acradenia (Greene) Greene, Artemisia ludoviciana Nutt., Cirsium neomexicanum Gray, Sphaeralcea grossulariifolia (Hook. & Arn.) Rydb., Psorothamnus fremontii (Torr. ex Gray) Barneby var. fremontii, Atriplex canescens (Pursh) Nutt., Aster species, Phacelia crenulata Torr. ex S. Wats., Gutierrezia sarothrae (Pursh) Britt. & Rusby, Mirabilis bigelovii Gray, Chaenactis stevioides Hook. & Arn., Encelia frutescens (Gray) Gray var. resinosa M.E. Jones ex Blake, Layia glandulosa (Hook.) Hook. & Arn., Sphaeralcea spp. 
Surface water within 25 m? Surface water type: stream Surface rocks: sandstone shale 
Landform: Side slope Lower slope  Light exposure: open  
Soil type: sandy loam  Soil moisture:  moist  
Point Intercept Transect (50m)  % Cover  
Boulder  2  
Cobble  5  
Gravel  8  
Litter (duff)  71  
Sand  55  
Stone  3  
Acacia greggii Gray  5  
Artemisia ludoviciana Nutt.  1  
Astragalus spp.  1  
Bromus rubens L.  24  
Descurainia pinnata (Walt.) Britt.  8  
Erodium cicutarium (L.) L'Hr. ex Ait.  23  
Prosopis glandulosa Torr.  14  
Stanleya pinnata (Pursh) Britt.  1  
Tamarix ramosissima Ledeb.  37  

Daubenmire Scale Cover Data from 50m Transect 
Ground Cover Category  Meters  Cover Scale  
Boulder  5  1 <1%  
Boulder  15  2 1-5%  
Coarse woody debris  5  1 <1%  
Coarse woody debris  15  3 5-10%  
Coarse woody debris  25  3 5-10%  
Coarse woody debris  35  3 5-10%  
Cobble  5  3 5-10%  
Cobble  45  2 1-5%  
Litter (duff)  5  3 5-10%  
Litter (duff)  15  3 5-10%  
Litter (duff)  35  6 50-75%  
Sand  5  7 75-100%  
Sand  15  6 50-75%  

Sand  25  6 50-75%  
Sand  35  4 10-25%  
Sand  45  6 50-75%  
Stone  15  3 5-10%  
Stone  25  1 <1%  
Stone  45  1 <1%  
Species Name  Meters  Tree Age  Cover Scale  
Acacia greggii Gray  25  3 5-10%  
Acacia greggii Gray  35  1 <1%  
Acacia greggii Gray  45  2 1-5%  
Artemisia ludoviciana Nutt.  35  1 <1%  
Astragalus spp.  45  1 <1%  
Atriplex canescens (Pursh) Nutt.  35  3 5-10%  
Atriplex canescens (Pursh) Nutt.  45  3 5-10%  
Brickellia microphylla (Nutt.) Gray var. scabra Gray  45  1 <1%  
Bromus rubens L.  5  4 10-25%  
Bromus rubens L.  15  5 25-50%  
Bromus rubens L.  25  4 10-25%  
Bromus rubens L.  35  4 10-25%  
Bromus rubens L.  45  2 1-5%  
Calibrachoa parviflora (Juss.) D'Arcy  25  1 <1%  
Calibrachoa parviflora (Juss.) D'Arcy  35  1 <1%  
Calibrachoa parviflora (Juss.) D'Arcy  45  1 <1%  
Chaenactis stevioides Hook. & Arn.  45  1 <1%  
Cirsium neomexicanum Gray  45  1 <1%  
Descurainia pinnata (Walt.) Britt.  5  1 <1%  
Descurainia pinnata (Walt.) Britt.  15  1 <1%  
Descurainia pinnata (Walt.) Britt.  25  2 1-5%  
Descurainia pinnata (Walt.) Britt.  35  2 1-5%  
Descurainia pinnata (Walt.) Britt.  45  2 1-5%  
Encelia spp.  45  1 <1%  
Erodium cicutarium (L.) L'Hr. ex Ait.  5  3 5-10%  
Erodium cicutarium (L.) L'Hr. ex Ait.  15  1 <1%  
Erodium cicutarium (L.) L'Hr. ex Ait.  25  2 1-5%  
Erodium cicutarium (L.) L'Hr. ex Ait.  35  1 <1%  
Erodium cicutarium (L.) L'Hr. ex Ait.  45  2 1-5%  
Gilia scopulorum M.E. Jones  45  1 <1%  
Gutierrezia sarothrae (Pursh) Britt. & Rusby  25  1 <1%  
Gutierrezia sarothrae (Pursh) Britt. & Rusby  45  1 <1%  
Isocoma acradenia (Greene) Greene  25  1 <1%  
Layia glandulosa (Hook.) Hook. & Arn.  25  1 <1%  
Mirabilis bigelovii Gray  15  1 <1%  
Phacelia crenulata Torr. ex S. Wats.  45  1 <1%  
Plantago patagonica Jacq.  45  1 <1%  
Prosopis glandulosa Torr.  5  5 25-50%  
Prosopis glandulosa Torr.  15  4 10-25%  
Psorothamnus fremontii (Torr. ex Gray) Barneby var. fremontii  45  1 <1%  
Sphaeralcea grossulariifolia (Hook. & Arn.) Rydb.  5  1 <1%  
Sphaeralcea grossulariifolia (Hook. & Arn.) Rydb.  15  1 <1%  
Sphaeralcea grossulariifolia (Hook. & Arn.) Rydb.  25  1 <1%  
Sphaeralcea grossulariifolia (Hook. & Arn.) Rydb.  45  2 1-5%  
Stanleya pinnata (Pursh) Britt.  45  1 <1%  
Tamarix ramosissima Ledeb.  15  6 50-75%  
Tamarix ramosissima Ledeb.  35  6 50-75%  

Vegetation Structure Data 
Species Name  Meters  # of Hits  Height  
Bromus rubens L.  5  8  0-1.0  
Erodium cicutarium (L.) L'Hr. ex Ait.  5  4  0-1.0  
Tamarix ramosissima Ledeb.  15  2  2-3  
Tamarix ramosissima Ledeb.  15  4  1-2  
Descurainia pinnata (Walt.) Britt.  25  3  0-1.0  
Bromus rubens L.  35  3  0-1.0  
Tamarix ramosissima Ledeb.  35  2  3-4  
Tamarix ramosissima Ledeb.  35  7  2-3  
Tamarix ramosissima Ledeb.  35  13  1-2  
Tamarix ramosissima Ledeb.  35  13  0-1.0  
Bromus rubens L.  45  6  0-1.0  

Soil Data 
Meters  Probe depth (cm)  Reading 1  Reading 2  Reading 3  Average Reading  
5  7.6  0.09  0.09  0.14  0.11  
15  3.8  0.2  0.19  0.22  0.20  
25  15.2  0.39  0.39  0.39  0.39  
35  5.1  5  0.04  0.06  1.70  
45  15.2  0.2  0.18  0.17  0.18  

Canyon/Park  Carbon Canyon  River mile:  64.7 R  
Transect Name:  Carbon Canyon Transect 4  Type:  Reference  
Date:  5/8/2005  Weather:  Blue sky, breezy  
Start point:  End point:  
Easting  424724  Easting  424731  
Northing  4001642  Northing  4001596  
GPS accuracy (m)  2  GPS accuracy (m)  4  
Bearing:  169  Elevation (m):  898  
Aspect (0-360):  83  Slope (degrees):  19  

Transect description:	About 1km above where trail forks to Lava Chuar.  Also down canyon from where three forks converge.  Transect is on creek right 50m downcanyon from T4A. 
Geological layer: Supergroup
Habitat type: Riparian Great Basin desert scrub
Dominant species: Atriplex canescens (Pursh) Nutt., Prosopis glandulosa Torr., Bromus rubens L.
Associated species: Sphaeralcea grossulariifolia (Hook. & Arn.) Rydb., Artemisia ludoviciana Nutt., Stanleya pinnata (Pursh)

Britt., Phacelia crenulata Torr. ex S. Wats., Descurainia pinnata (Walt.) Britt., Lycium spp., Schismus spp.,
Erodium cicutarium (L.) L'Hr. ex Ait., Chaenactis stevioides Hook. & Arn., Psorothamnus fremontii (Torr. ex Gray) Barneby
var. attenuatus Barneby, Isocoma acradenia (Greene) Greene, Acacia greggii Gray, Gutierrezia sarothrae (Pursh) Britt. & Rusby,
Pleuraphis jamesii Torr., Gilia stellata Heller

  Surface water within 25 m? Surface water type: stream Surface rocks: sandstone shale Landform: Lower slope Light exposure: partial-shade Soil type: sandy loam Soil moisture: dry 
Point Intercept Transect (50m) % Cover Coarse woody debris 2 Litter (duff) 85 Sand 33 Acacia greggii Gray 10 Atriplex canescens (Pursh) Nutt. 15 Brickellia spp. 2 Bromus rubens L. 34 Descurainia pinnata (Walt.) Britt. 42 Erodium cicutarium (L.) L'Hr. ex Ait. 6 Gutierrezia sarothrae (Pursh) Britt. & Rusby 2 Lepidium perfoliatum L. 1 Lycium spp. 4 Prosopis glandulosa Torr. 32 Psorothamnus fremontii (Torr. ex Gray) Barneby var. attenuatus 1 Barneby Schismus spp. 9 Sphaeralcea grossulariifolia (Hook. & Arn.) Rydb. 3 Stanleya pinnata (Pursh) Britt. 4 
Daubenmire Scale Cover Data from 50m Transect 
Ground Cover Category  Meters  Cover Scale  
Cobble  5  1 <1%  
Cobble  15  1 <1%  
Gravel  5  1 <1%  
Gravel  15  2 1-5%  
Litter (duff)  5  5 25-50%  
Litter (duff)  15  5 25-50%  
Sand  5  5 25-50%  
Sand  15  5 25-50%  
Woody debris structure  5  1 <1%  
Woody debris structure  15  1 <1%  
Species Name  Meters  Tree Age  Cover Scale  
Acacia greggii Gray  15  3 5-10%  
Acacia greggii Gray  45  1 <1%  

Artemisia ludoviciana Nutt.  5  1 <1%  
Atriplex canescens (Pursh) Nutt.  5  3 5-10%  
Atriplex canescens (Pursh) Nutt.  15  3 5-10%  
Atriplex canescens (Pursh) Nutt.  25  2 1-5%  
Atriplex canescens (Pursh) Nutt.  35  2 1-5%  
Atriplex canescens (Pursh) Nutt.  45  3 5-10%  
Bromus rubens L.  5  4 10-25%  
Bromus rubens L.  15  4 10-25%  
Bromus rubens L.  25  5 25-50%  
Bromus rubens L.  35  4 10-25%  
Bromus rubens L.  45  4 10-25%  
Chaenactis stevioides Hook. & Arn.  15  1 <1%  
Chaenactis stevioides Hook. & Arn.  45  1 <1%  
Descurainia pinnata (Walt.) Britt.  5  1 <1%  
Descurainia pinnata (Walt.) Britt.  15  2 1-5%  
Descurainia pinnata (Walt.) Britt.  25  3 5-10%  
Descurainia pinnata (Walt.) Britt.  35  2 1-5%  
Descurainia pinnata (Walt.) Britt.  45  2 1-5%  
Erodium cicutarium (L.) L'Hr. ex Ait.  35  1 <1%  
Erodium cicutarium (L.) L'Hr. ex Ait.  45  1 <1%  
Gilia stellata Heller  45  1 <1%  
Gutierrezia sarothrae (Pursh) Britt. & Rusby  25  1 <1%  
Isocoma acradenia (Greene) Greene  15  1 <1%  
Lepidium spp.  5  1 <1%  
Lepidium spp.  15  1 <1%  
Lepidium spp.  25  1 <1%  
Lepidium spp.  35  1 <1%  
Lepidium spp.  45  1 <1%  
Lycium spp.  35  1 <1%  
Phacelia crenulata Torr. ex S. Wats.  15  1 <1%  
Phacelia crenulata Torr. ex S. Wats.  25  1 <1%  
Phacelia crenulata Torr. ex S. Wats.  35  1 <1%  
Pleuraphis jamesii Torr.  25  1 <1%  
Prosopis glandulosa Torr.  25  7 75-100%  
Prosopis glandulosa Torr.  35  4 10-25%  
Prosopis glandulosa Torr.  45  5 25-50%  
Psorothamnus fremontii (Torr. ex Gray) Barneby var. attenuatus Barneby  15  1 <1%  
Psorothamnus fremontii (Torr. ex Gray) Barneby var. attenuatus Barneby  45  1 <1%  
Schismus spp.  5  1 <1%  
Schismus spp.  25  1 <1%  
Schismus spp.  35  1 <1%  
Schismus spp.  45  1 <1%  
Sphaeralcea grossulariifolia (Hook. & Arn.) Rydb.  15  2 1-5%  
Sphaeralcea grossulariifolia (Hook. & Arn.) Rydb.  35  2 1-5%  
Sphaeralcea grossulariifolia (Hook. & Arn.) Rydb.  45  2 1-5%  
Stanleya pinnata (Pursh) Britt.  5  1 <1%  
Stanleya pinnata (Pursh) Britt.  25  1 <1%  
Suaeda moquinii (Torr.) Greene  5  3 5-10%  

Vegetation Structure Data 
Species Name  Meters  # of Hits  Height  
Atriplex canescens (Pursh) Nutt.  15  8  0-1.0  
Descurainia pinnata (Walt.) Britt.  15  6  0-1.0  
Gutierrezia spp.  25  7  0-1.0  
Prosopis glandulosa Torr.  25  3  0-1.0  
Prosopis glandulosa Torr.  25  5  3-4  
Prosopis glandulosa Torr.  25  7  2-3  
Prosopis glandulosa Torr.  25  9  1-2  
Prosopis glandulosa Torr.  25  12  4-5  
Bromus rubens L.  35  2  0-1.0  
Descurainia pinnata (Walt.) Britt.  35  6  0-1.0  
Prosopis glandulosa Torr.  35  3  2-3  
Sphaeralcea grossulariifolia (Hook. & Arn.) Rydb.  35  1  0-1.0  
Bromus rubens L.  45  1  0-1.0  
Descurainia pinnata (Walt.) Britt.  45  5  0-1.0  
Prosopis glandulosa Torr.  45  9  1-2  
Prosopis glandulosa Torr.  45  15  0-1.0  

Soil Data 
Meters  Probe depth (cm)  Reading 1  Reading 2  Reading 3  Average Reading  
5  15  0.13  0.19  0.21  0.18  
15  15  0.07  0.02  0.08  0.06  
25  10  0.24  0.22  0.2  0.22  
35  11  0.16  0.09  0.16  0.14  
45  11  0.08  0.1  0.09  0.09  

Canyon/Park Carbon Canyon River mile: 64.7 R 
Transect Name: Carbon Canyon Transect 5 Type: Tamarisk area 
Date: 5/9/2005 Weather: Sunny, partly cloudy, breezy, hot 
Start point: End point: 
Easting 424783 Easting 424792 
Northing 4002075 Northing 4002036 
GPS accuracy (m) 6 GPS accuracy (m) 6 
Bearing: 170 Elevation (m): 1026 
Aspect (0-360): 235 Slope (degrees): 6 
Transect description: Near the confluence of east and west branches of carbon, about 100 meters up east branch. 
Geological layer: Supergroup 
Habitat type: Riparian Great Basin desert scrub 
Dominant species: Prosopis glandulosa Torr., Tamarix ramosissima Ledeb., Bromus rubens L. 
Associated species: Erodium cicutarium (L.) L'Hr. ex Ait., Descurainia pinnata (Walt.) Britt., Dasyochloa pulchella (Kunth) 
Willd. ex Rydb., Acacia greggii Gray, Cryptantha maritima (Greene) Greene, Artemisia ludoviciana Nutt., 
Stanleya pinnata (Pursh) Britt., Camissonia walkeri (A. Nels.) Raven, Sphaeralcea grossulariifolia (Hook. & Arn.) Rydb., 
Bromus tectorum L., Plantago patagonica Jacq., Gutierrezia sarothrae (Pursh) Britt. & Rusby, Isocoma acradenia (Greene) 
Greene, Sporobolus cryptandrus (Torr.) Gray, Draba cuneifolia Nutt. ex Torr. & Gray, Linanthus bigelovii (Gray) Greene, 
Thymophylla pentachaeta (DC.) Small, Lepidium spp., Stephanomeria pauciflora (Torr.) A. Nels., Gilia stellata Heller, Vulpia 
octoflora, Phacelia crenulata Torr. ex S. Wats., Atriplex canescens (Pursh) Nutt., Silene antirrhina L., Tiquilia latior (I.M. 
Johnston) A. Richards., Encelia frutescens (Gray) Gray var. resinosa M.E. Jones ex Blake 
Surface water within 25 m? Surface water type: stream Surface rocks: sandstone shale 
Landform: Lower slope Light exposure: open 
Soil type: sandy loam Soil moisture: moist 
Point Intercept Transect (50m) % Cover 
Bare Soil 37 
Boulder 4 
Cobble 2 
Gravel 16 
Litter (duff) 52 
Sand 18 
Stone 13 
Artemisia ludoviciana Nutt. 1 
Bromus rubens L. 7 
Isocoma acradenia (Greene) Greene 2 
Lepidium spp. 1 
Plantago patagonica Jacq. 1 
Prosopis glandulosa Torr. 7 
Stanleya pinnata (Pursh) Britt. 2 
Tamarix ramosissima Ledeb. 58 
Daubenmire Scale Cover Data from 50m Transect 
Ground Cover Category  Meters  Cover Scale  
Bare Soil  15  1 <1%  
Bare Soil  25  1 <1%  
Bare Soil  35  1 <1%  
Boulder  5  3 5-10%  
Boulder  15  3 5-10%  
Cobble  5  3 5-10%  
Cobble  15  2 1-5%  
Cobble  25  3 5-10%  
Cobble  35  1 <1%  
Gravel  5  5 25-50%  
Gravel  15  3 5-10%  
Gravel  25  6 50-75%  
Gravel  35  1 <1%  

Litter (duff)  5  2 1-5%  
Litter (duff)  15  2 1-5%  
Litter (duff)  25  4 10-25%  
Litter (duff)  35  4 10-25%  
Sand  5  5 25-50%  
Sand  15  5 25-50%  
Sand  25  4 10-25%  
Sand  35  2 1-5%  
Stone  5  3 5-10%  
Stone  15  3 5-10%  
Stone  25  4 10-25%  
Stone  35  1 <1%  
Woody debris structure  5  2 1-5%  
Woody debris structure  15  2 1-5%  
Woody debris structure  25  2 1-5%  
Woody debris structure  35  2 1-5%  
Species Name  Meters  Tree Age  Cover Scale  
Acacia greggii Gray  45  1 <1%  
Artemisia ludoviciana Nutt.  5  1 <1%  
Atriplex canescens (Pursh) Nutt.  45  1 <1%  
Bromus rubens L.  5  1 <1%  
Bromus rubens L.  15  2 1-5%  
Bromus rubens L.  25  3 5-10%  
Bromus rubens L.  35  2 1-5%  
Bromus rubens L.  45  3 5-10%  
Bromus tectorum L.  25  1 <1%  
Camissonia walkeri (A. Nels.) Raven  45  1 <1%  
Cryptantha maritima (Greene) Greene  15  1 <1%  
Cryptantha maritima (Greene) Greene  35  1 <1%  
Cryptantha maritima (Greene) Greene  45  1 <1%  
Dasyochloa pulchella (Kunth) Willd. ex Rydb.  5  1 <1%  
Descurainia pinnata (Walt.) Britt.  15  1 <1%  
Descurainia pinnata (Walt.) Britt.  25  1 <1%  
Descurainia pinnata (Walt.) Britt.  35  1 <1%  
Descurainia pinnata (Walt.) Britt.  45  1 <1%  
Draba cuneifolia Nutt. ex Torr. & Gray  15  1 <1%  
Draba cuneifolia Nutt. ex Torr. & Gray  45  1 <1%  
Encelia frutescens (Gray) Gray var. resinosa M.E. Jones ex Blake  5  1 <1%  
Encelia frutescens (Gray) Gray var. resinosa M.E. Jones ex Blake  15  1 <1%  
Encelia spp.  5  1 <1%  
Encelia spp.  15  1 <1%  
Erodium cicutarium (L.) L'Hr. ex Ait.  15  1 <1%  
Gutierrezia sarothrae (Pursh) Britt. & Rusby  15  1 <1%  
Isocoma acradenia (Greene) Greene  5  2 1-5%  
Isocoma acradenia (Greene) Greene  15  3 5-10%  
Lepidium spp.  15  1 <1%  
Lepidium spp.  25  1 <1%  
Lepidium spp.  35  1 <1%  
Lepidium spp.  45  1 <1%  
Linanthus bigelovii (Gray) Greene  15  1 <1%  
Phacelia crenulata Torr. ex S. Wats.  45  1 <1%  
Plantago patagonica Jacq.  5  1 <1%  
Plantago patagonica Jacq.  15  1 <1%  

Plantago patagonica Jacq.  25  1 <1%  
Plantago patagonica Jacq.  35  1 <1%  
Plantago patagonica Jacq.  45  1 <1%  
Prosopis glandulosa Torr.  15  5 25-50%  
Prosopis glandulosa Torr.  25  4 10-25%  
Silene antirrhina L.  45  1 <1%  
Sphaeralcea grossulariifolia (Hook. & Arn.) Rydb.  5  1 <1%  
Sporobolus cryptandrus (Torr.) Gray  15  1 <1%  
Stanleya pinnata (Pursh) Britt.  15  2 1-5%  
Stanleya pinnata (Pursh) Britt.  25  1 <1%  
Stanleya pinnata (Pursh) Britt.  35  1 <1%  
Stanleya pinnata (Pursh) Britt.  45  2 1-5%  
Stephanomeria pauciflora (Torr.) A. Nels.  25  1 <1%  
Tamarix ramosissima Ledeb.  5  4 10-25%  
Tamarix ramosissima Ledeb.  25  6 50-75%  
Tamarix ramosissima Ledeb.  35  6 50-75%  
Tamarix ramosissima Ledeb.  45  5 25-50%  
Thymophylla pentachaeta (DC.) Small  5  1 <1%  
Tiquilia latior (I.M. Johnston) A. Richards.  5  1 <1%  

Vegetation Structure Data 
Species Name  Meters  # of Hits  Height  
Prosopis glandulosa Torr.  15  2  1-2  
Prosopis glandulosa Torr.  15  5  0-1.0  
Tamarix ramosissima Ledeb.  25  6  2-3  
Tamarix ramosissima Ledeb.  35  4  3-4  
Tamarix ramosissima Ledeb.  35  6  0-1.0  
Tamarix ramosissima Ledeb.  35  7  1-2  
Tamarix ramosissima Ledeb.  35  15  2-3  
Tamarix ramosissima Ledeb.  45  2  3-4  
Tamarix ramosissima Ledeb.  45  7  1-2  
Tamarix ramosissima Ledeb.  45  7  2-3  
Tamarix ramosissima Ledeb.  45  7  0-1.0  

Soil Data 
Meters  Probe depth (cm)  Reading 1  Reading 2  Reading 3  Average Reading  
5  8  0.22  0.26  0.22  0.23  
15  15  0.59  0.64  0.65  0.63  
25  15  0.78  0.82  0.8  0.80  
35  15  0.13  0.15  0.15  0.14  
45  15  0.41  0.62  0.53  0.52  

Canyon/Park  Carbon Canyon  River mile: 64.7 R  
Transect Name:  Carbon Canyon Transect 5  Type: Reference  
Date:  5/9/2005  Weather: Windy, sunny/partly cloudy, hot  
Start point:  End point:  
Easting  424809  Easting  0  
Northing  4002120  Northing  0  
GPS accuracy (m)  GPS accuracy (m)  
Bearing:  205  Elevation (m):  1030  
Aspect (0-360):  280  Slope (degrees):  4 

  Transect description:	Start point is about 50m up canyon from start point of 5A.  ~0.5m from base of ACAGRE on a pile of three huge boulders.  Start is on the 5x4m boulder just across creek from 2 stromatalites.  On creek left ~4m from center of channel.  End of 5B just farther stream left (5m) than start of 5A - they almost overlap. 
Geological layer: Supergroup
Habitat type: Riparian Great Basin desert scrub
Dominant species: Prosopis glandulosa Torr., Atriplex canescens (Pursh) Nutt., Bromus rubens L.
Associated species: Stephanomeria exigua Nutt., Stanleya pinnata (Pursh) Britt., Camissonia walkeri (A. Nels.) Raven,

Sphaeralcea grossulariifolia (Hook. & Arn.) Rydb., Thymophylla pentachaeta (DC.) Small, Erodium cicutarium (L.) L'Hr. ex Ait., Sporobolus cryptandrus (Torr.) Gray, Descurainia pinnata (Walt.) Britt., Vulpia octoflora, Gutierrezia sarothrae (Pursh) Britt. & Rusby, Cirsium neomexicanum Gray, Erigeron spp., Draba cuneifolia Nutt. ex Torr. & Gray, Artemisia ludoviciana Nutt., Mammillaria spp., Achnatherum hymenoides (Roemer & J.A. Schultes) Barkworth, Moss spp., Dasyochloa pulchella (Kunth) Willd. ex Rydb., Silene antirrhina L., Hesperostipa spp., Lycium spp., Atriplex canescens (Pursh) Nutt., Lappula redowski, Muhlenbergia asperifolia (Nees & Meyen ex Trin.) Parodi, Eucrypta micrantha (Torr.) Heller, Cryptantha pterocarya (Torr.) Greene, Encelia frutescens (Gray) Gray var. resinosa M.E. Jones ex Blake, Cryptantha spp., Aristida spp., Camissonia spp., Linanthus bigelovii (Gray) Greene, Plantago patagonica Jacq., Lepidium spp., Acacia greggii Gray, Isocoma acradenia (Greene) Greene, Schismus spp., Encelia farinosa Gray ex Torr., Cryptantha barbigera (Gray) Greene 
Surface water within 25 m?  Surface water type: stream  Surface rocks: sandstone  other  
Landform: Lower slope  Light exposure: open  
Soil type: sandy loam  Soil moisture: dry  
Point Intercept Transect (50m)  % Cover  
Bare Soil  19  
Boulder  8  
Cobble  3  
Gravel  14  
Litter (duff)  53  
Sand  19  
Stone  12  
Acacia greggii Gray  4  
Atriplex canescens (Pursh) Nutt.  1  
Bromus rubens L.  17  
Cryptantha barbigera (Gray) Greene  1  
Descurainia pinnata (Walt.) Britt.  5  
Hesperostipa spp.  1  
Isocoma acradenia (Greene) Greene  5  
Lepidium spp.  1  
Moss  1  
Plantago patagonica Jacq.  1  
Prosopis glandulosa Torr.  30  
Schismus spp.  1  

Sphaeralcea grossulariifolia (Hook. & Arn.) Rydb. 2
Stanleya pinnata (Pursh) Britt. 5

Daubenmire Scale Cover Data from 50m Transect 
Ground Cover Category  Meters  Cover Scale  
Boulder  5  2 1-5%  
Boulder  15  3 5-10%  
Boulder  25  2 1-5%  
Boulder  35  2 1-5%  
Boulder  45  3 5-10%  
Coarse woody debris  5  2 1-5%  
Coarse woody debris  15  2 1-5%  

Coarse woody debris  25  1 <1%  
Coarse woody debris  35  2 1-5%  
Coarse woody debris  45  2 1-5%  
Cobble  5  3 5-10%  
Cobble  15  2 1-5%  
Cobble  25  1 <1%  
Cobble  35  2 1-5%  
Cobble  45  4 10-25%  
Gravel  5  4 10-25%  
Gravel  15  4 10-25%  
Gravel  25  4 10-25%  
Gravel  35  3 5-10%  
Gravel  45  5 25-50%  
Litter (duff)  5  2 1-5%  
Litter (duff)  15  4 10-25%  
Litter (duff)  25  5 25-50%  
Litter (duff)  35  5 25-50%  
Litter (duff)  45  2 1-5%  
Sand  5  5 25-50%  
Sand  15  4 10-25%  
Sand  25  4 10-25%  
Sand  35  5 25-50%  
Sand  45  3 5-10%  
Stone  5  2 1-5%  
Stone  15  3 5-10%  
Stone  25  1 <1%  
Stone  35  3 5-10%  
Stone  45  4 10-25%  
Species Name  Meters  Tree Age  Cover Scale  
Acacia greggii Gray  5  3 5-10%  
Acacia greggii Gray  45  2 1-5%  
Achnatherum hymenoides (Roemer & J.A. Schultes) Barkworth  35  1 <1%  
Aristida spp.  5  1 <1%  
Aristida spp.  15  1 <1%  
Aristida spp.  45  1 <1%  
Artemisia ludoviciana Nutt.  5  1 <1%  
Artemisia ludoviciana Nutt.  35  1 <1%  
Astragalus spp.  5  1 <1%  
Atriplex canescens (Pursh) Nutt.  5  1 <1%  
Atriplex canescens (Pursh) Nutt.  15  2 1-5%  
Atriplex canescens (Pursh) Nutt.  25  1 <1%  
Atriplex canescens (Pursh) Nutt.  35  1 <1%  
Atriplex canescens (Pursh) Nutt.  45  1 <1%  
Bromus rubens L.  5  1 <1%  
Bromus rubens L.  15  1 <1%  
Bromus rubens L.  25  5 25-50%  
Bromus rubens L.  35  5 25-50%  
Bromus rubens L.  45  2 1-5%  
Camissonia walkeri (A. Nels.) Raven  15  1 <1%  
Cirsium neomexicanum Gray  15  1 <1%  
Cryptantha barbigera (Gray) Greene  25  1 <1%  

Cryptantha maritima (Greene) Greene  35  1 <1%  
Cryptantha pterocarya (Torr.) Greene  15  1 <1%  
Cryptantha spp.  5  1 <1%  
Cryptantha spp.  25  1 <1%  
Cryptantha spp.  45  1 <1%  
Dasyochloa pulchella (Kunth) Willd. ex Rydb.  45  1 <1%  
Descurainia pinnata (Walt.) Britt.  5  1 <1%  
Descurainia pinnata (Walt.) Britt.  15  2 1-5%  
Descurainia pinnata (Walt.) Britt.  25  3 5-10%  
Descurainia pinnata (Walt.) Britt.  35  4 10-25%  
Draba cuneifolia Nutt. ex Torr. & Gray  35  1 <1%  
Encelia spp.  5  1 <1%  
Encelia spp.  45  2 1-5%  
Erigeron spp.  5  1 <1%  
Erigeron spp.  15  1 <1%  
Erodium cicutarium (L.) L'Hr. ex Ait.  5  1 <1%  
Erodium cicutarium (L.) L'Hr. ex Ait.  15  1 <1%  
Erodium cicutarium (L.) L'Hr. ex Ait.  25  1 <1%  
Erodium cicutarium (L.) L'Hr. ex Ait.  45  1 <1%  
Gutierrezia sarothrae (Pursh) Britt. & Rusby  5  1 <1%  
Gutierrezia sarothrae (Pursh) Britt. & Rusby  15  1 <1%  
Gutierrezia sarothrae (Pursh) Britt. & Rusby  35  1 <1%  
Gutierrezia sarothrae (Pursh) Britt. & Rusby  45  2 1-5%  
Hesperostipa spp.  5  1 <1%  
Hesperostipa spp.  45  1 <1%  
Isocoma acradenia (Greene) Greene  5  4 10-25%  
Isocoma acradenia (Greene) Greene  15  1 <1%  
Isocoma acradenia (Greene) Greene  25  1 <1%  
Isocoma acradenia (Greene) Greene  35  1 <1%  
Isocoma acradenia (Greene) Greene  45  3 5-10%  
Lappula redowski  25  1 <1%  
Lappula redowski  35  1 <1%  
Lepidium spp.  5  1 <1%  
Lepidium spp.  15  1 <1%  
Lepidium spp.  25  1 <1%  
Lepidium spp.  35  1 <1%  
Lepidium spp.  45  1 <1%  
Linanthus bigelovii (Gray) Greene  5  1 <1%  
Linanthus bigelovii (Gray) Greene  15  1 <1%  
Linanthus bigelovii (Gray) Greene  35  1 <1%  
Lycium spp.  45  1 <1%  
Mammillaria spp.  45  1 <1%  
Mirabilis bigelovii Gray  45  1 <1%  
Plantago patagonica Jacq.  5  1 <1%  
Plantago patagonica Jacq.  15  1 <1%  
Plantago patagonica Jacq.  35  1 <1%  
Plantago patagonica Jacq.  45  2 1-5%  
Prosopis glandulosa Torr.  15  M Mature  3 5-10%  
Prosopis glandulosa Torr.  25  M Mature  5 25-50%  
Prosopis glandulosa Torr.  35  M Mature  5 25-50%  
Silene antirrhina L.  35  1 <1%  
Silene antirrhina L.  45  1 <1%  
Sphaeralcea grossulariifolia (Hook. & Arn.) Rydb.  5  1 <1%  
Sphaeralcea grossulariifolia (Hook. & Arn.) Rydb.  45  2 1-5%  
Sporobolus cryptandrus (Torr.) Gray  5  1 <1%  
Stanleya pinnata (Pursh) Britt.  25  2 1-5%  
Stanleya pinnata (Pursh) Britt.  35  1 <1%  

Stephanomeria exigua Nutt.  15  1 <1%  
Thymophylla pentachaeta (DC.) Small  45  1 <1%  
Vulpia octoflora  5  1 <1%  
Vulpia octoflora  15  1 <1%  
Vulpia octoflora  25  1 <1%  
Vulpia octoflora  35  1 <1%  
Vulpia octoflora  45  1 <1%  

Vegetation Structure Data 
Species Name  Meters  # of Hits  Height  
Acacia greggii Gray  5  2  0-1.0  
Prosopis glandulosa Torr.  25  1  1-2  
Prosopis glandulosa Torr.  25  2  0-1.0  
Bromus rubens L.  35  5  0-1.0  
Descurainia pinnata (Walt.) Britt.  35  1  0-1.0  
Prosopis glandulosa Torr.  35  1  2-3  
Prosopis glandulosa Torr.  35  2  0-1.0  
Prosopis glandulosa Torr.  35  3  1-2  
Bromus rubens L.  45  2  0-1.0  
Isocoma acradenia (Greene) Greene  45  4  0-1.0  
Vulpia octoflora  45  3  0-1.0  

Soil Data 
Meters  Probe depth (cm)  Reading 1  Reading 2  Reading 3  Average Reading  
5  0.01  0  0  0  0.00  
15  5  0.15  0.16  0.15  0.15  
25  15  0.35  0.18  0.2  0.24  
35  13  0.03  0.03  0.04  0.03  
45  11  0.03  0.02  0.02  0.02  

Canyon/Park  Crystal Canyon  River mile:  99 R  
Transect Name:  Crystal Creek Transect 1  Type:  Tamarisk area  
Date:  5/12/2005  Weather:  Warm, sunny 10% clouds  
Start point:  End point:  
Easting  388641  Easting  388631  
Northing  3999939  Northing  3999925  
GPS accuracy (m)  10  GPS accuracy (m)  10  
Bearing:  0  Elevation (m):  897  
Aspect (0-360):  96  Slope (degrees):  3  
Transect description:  Up canyon ~200m from T1B at end of 125m stretch.  
Geological layer:  Schist  
Habitat type:  Riparian  Mojave desert scrub  

Dominant species: Isocoma acradenia (Greene) Greene, Tamarix ramosissima Ledeb. Associated species: Encelia farinosa Gray ex Torr., Cryptantha barbigera (Gray) Greene, Bromus rubens L., Erodium cicutarium (L.) L'Hr. ex Ait., Plantago patagonica Jacq., Vulpia microstachys, Galium aparine L., Lepidium lasiocarpum Nutt. var. lasiocarpum, Pectocarya recurvata I.M. Johnston, Poa bigelovii Vasey & Scribn., Sporobolus cryptandrus (Torr.) Gray, Mirabilis bigelovii Gray, Muhlenbergia asperifolia (Nees & Meyen ex Trin.) Parodi, Eragrostis cilianensis (All.) Vign. ex Janchen, Stylocline micropoides Gray, Pseudognaphalium chilense, Cryptantha maritima (Greene) Greene, Iva acerosa (Nutt.) R.C. Jackson, Cryptobiotic soil, Acacia greggii Gray, Typha latifolia L., Baccharis emoryi Gray, Mammillaria grahamii Engelm. var. grahamii 
Surface water within 25 m? Surface water type: stream Surface rocks: other Landform: Drainage channel Light exposure: open Soil type: sand Soil moisture: moist 
Point Intercept Transect (50m) % Cover Boulder 19 Cobble 5 Gravel 6 Litter (duff) 25 Sand 67 Stone 11 Isocoma acradenia (Greene) Greene 13 Muhlenbergia asperifolia (Nees & Meyen ex Trin.) Parodi 2 Plantago patagonica Jacq. 1 Tamarix ramosissima Ledeb. 32 
Daubenmire Scale Cover Data from 50m Transect 
Ground Cover Category  Meters  Cover Scale  
Bedrock  5  1 <1%  
Bedrock  15  0 <0%  
Bedrock  25  0 <0%  
Bedrock  35  0 <0%  
Bedrock  45  0 <0%  
Boulder  5  2 1-5%  
Boulder  15  2 1-5%  
Boulder  25  3 5-10%  
Boulder  35  3 5-10%  
Boulder  45  3 5-10%  
Coarse woody debris  15  3 5-10%  
Coarse woody debris  25  1 <1%  
Coarse woody debris  35  2 1-5%  
Coarse woody debris  45  1 <1%  
Cobble  5  2 1-5%  
Cobble  15  2 1-5%  
Cobble  25  2 1-5%  
Cobble  35  2 1-5%  

Cobble  45  3 5-10%  
Gravel  5  2 1-5%  
Gravel  15  2 1-5%  
Gravel  25  3 5-10%  
Gravel  35  4 10-25%  
Gravel  45  3 5-10%  
Litter (duff)  5  3 5-10%  
Litter (duff)  15  3 5-10%  
Litter (duff)  25  3 5-10%  
Litter (duff)  35  4 10-25%  
Litter (duff)  45  2 1-5%  
Sand  5  5 25-50%  
Sand  15  6 50-75%  
Sand  25  5 25-50%  
Sand  35  4 10-25%  
Sand  45  4 10-25%  
Stone  5  5 25-50%  
Stone  15  3 5-10%  
Stone  25  4 10-25%  
Stone  35  4 10-25%  
Stone  45  3 5-10%  
Species Name  Meters  Tree Age  Cover Scale  
Acacia greggii Gray  5  M Mature  2 1-5%  
Baccharis emoryi Gray  45  3 5-10%  
Bromus rubens L.  5  1 <1%  
Bromus rubens L.  15  1 <1%  
Bromus rubens L.  25  1 <1%  
Bromus rubens L.  35  2 1-5%  
Bromus rubens L.  45  1 <1%  
Cryptantha barbigera (Gray) Greene  15  1 <1%  
Cryptantha barbigera (Gray) Greene  35  1 <1%  
Cryptantha barbigera (Gray) Greene  45  1 <1%  
Cryptantha maritima (Greene) Greene  5  1 <1%  
Cryptantha maritima (Greene) Greene  25  1 <1%  
Cryptantha maritima (Greene) Greene  35  1 <1%  
Cryptobiotic soil  15  1 <1%  
Cryptobiotic soil  25  1 <1%  
Cryptobiotic soil  35  1 <1%  
Cryptobiotic soil  45  1 <1%  
Encelia farinosa Gray ex Torr.  5  1 <1%  
Encelia farinosa Gray ex Torr.  15  0 <0%  
Encelia farinosa Gray ex Torr.  25  1 <1%  
Encelia farinosa Gray ex Torr.  35  1 <1%  
Encelia farinosa Gray ex Torr.  45  0 <0%  
Eragrostis cilianensis (All.) Vign. ex Janchen  35  1 <1%  
Eragrostis cilianensis (All.) Vign. ex Janchen  45  1 <1%  
Erodium cicutarium (L.) L'Hr. ex Ait.  25  1 <1%  
Isocoma acradenia (Greene) Greene  5  3 5-10%  
Isocoma acradenia (Greene) Greene  15  4 10-25%  
Isocoma acradenia (Greene) Greene  25  4 10-25%  
Isocoma acradenia (Greene) Greene  35  5 25-50%  
Isocoma acradenia (Greene) Greene  45  3 5-10%  

Lepidium lasiocarpum Nutt. var. lasiocarpum  5  1 <1%  
Lepidium lasiocarpum Nutt. var. lasiocarpum  15  1 <1%  
Lepidium lasiocarpum Nutt. var. lasiocarpum  25  1 <1%  
Lepidium lasiocarpum Nutt. var. lasiocarpum  35  1 <1%  
Lepidium lasiocarpum Nutt. var. lasiocarpum  45  1 <1%  
Mammillaria grahamii Engelm. var. grahamii  35  1 <1%  
Mirabilis bigelovii Gray  35  1 <1%  
Muhlenbergia asperifolia (Nees & Meyen ex Trin.) Parodi  5  1 <1%  
Muhlenbergia asperifolia (Nees & Meyen ex Trin.) Parodi  15  1 <1%  
Muhlenbergia asperifolia (Nees & Meyen ex Trin.) Parodi  25  1 <1%  
Muhlenbergia asperifolia (Nees & Meyen ex Trin.) Parodi  35  2 1-5%  
Muhlenbergia asperifolia (Nees & Meyen ex Trin.) Parodi  45  3 5-10%  
Pectocarya recurvata I.M. Johnston  25  1 <1%  
Plantago patagonica Jacq.  5  1 <1%  
Plantago patagonica Jacq.  15  1 <1%  
Plantago patagonica Jacq.  25  1 <1%  
Plantago patagonica Jacq.  35  1 <1%  
Plantago patagonica Jacq.  45  1 <1%  
Poa bigelovii Vasey & Scribn.  45  1 <1%  
Pseudognaphalium chilense  5  1 <1%  
Pseudognaphalium chilense  15  1 <1%  
Pseudognaphalium chilense  25  1 <1%  
Sporobolus cryptandrus (Torr.) Gray  35  1 <1%  
Sporobolus cryptandrus (Torr.) Gray  45  1 <1%  
Stylocline micropoides Gray  35  1 <1%  
Stylocline micropoides Gray  45  1 <1%  
Tamarix ramosissima Ledeb.  5  P Sapling  2 1-5%  
Tamarix ramosissima Ledeb.  15  P Sapling  3 5-10%  
Tamarix ramosissima Ledeb.  25  P Sapling  3 5-10%  
Tamarix ramosissima Ledeb.  35  P Sapling  4 10-25%  
Tamarix ramosissima Ledeb.  45  P Sapling  2 1-5%  
Typha latifolia L.  15  1 <1%  
Vulpia microstachys  5  1 <1%  
Vulpia microstachys  15  1 <1%  
Vulpia microstachys  25  1 <1%  
Vulpia microstachys  35  1 <1%  
Vulpia microstachys  45  1 <1%  

Vegetation Structure Data 
Species Name  Meters  # of Hits  Height  
Tamarix ramosissima Ledeb.  35  2  0-1.0  
Tamarix ramosissima Ledeb.  35  3  1-2  

Soil Data 
Meters  Probe depth (cm)  Reading 1  Reading 2  Reading 3  Average Reading  
5  3  0.07  0.09  0.11  0.09  
15  15  0  0  0  0.00  
25  15  0  0.02  0.02  0.01  
35  15  0  0  0  0.00  
45  4  0.45  0.44  0.49  0.46  

Canyon/Park  Crystal Canyon  River mile:  99 R  
Transect Name:  Crystal Creek Transect 1  Type:  Reference  
Date:  5/12/2005  Weather:  Clear sky, light wind, 83F  
Start point:  End point:  
Easting  388641  Easting  388631  
Northing  3999939  Northing  3999925  
GPS accuracy (m)  10  GPS accuracy (m)  10  
Bearing:  219  Elevation (m):  897  
Aspect (0-360):  142  Slope (degrees):  6  

Transect description: Transect is ~650m up canyon from river, just as canyon narrows and becomes less densely vegetated.
Geological layer:
Habitat type: Riparian Mojave desert scrub
Dominant species: Tamarix ramosissima Ledeb., Encelia farinosa Gray ex Torr., Pluchea sericea (Nutt.) Coville
Associated species: Thymophylla pentachaeta (DC.) Small, Cryptantha spp., Plantago patagonica Jacq., Vulpia microstachys,

Bebbia juncea (Benth.) Greene var. aspera Greene, Muhlenbergia asperifolia (Nees & Meyen ex Trin.)
Parodi, Bromus rubens L.,  Poa bigelovii Vasey & Scribn., Typha latifolia L., Moss spp., Descurainia pinnata (Walt.) Britt.,
Stylocline micropoides Gray, Baccharis emoryi Gray, Porophyllum gracile Benth., Artemisia ludoviciana Nutt., Aristida
purpurea Nutt., Ephedra fasciculata A. Nels., Ayenia filiformis, Dasyochloa pulchella (Kunth) Willd. ex Rydb., Eragrostis
cilianensis (All.) Vign. ex Janchen, Opuntia basilaris Engelm. & Bigelow var. longiareolata (Clover & Jotter) L. Benson,
Mammillaria grahamii Engelm. var. grahamii, Pseudognaphalium chilense, Salix exigua Nutt., Mirabilis bigelovii Gray,
Eriogonum inflatum Torr. & Frm., Silene antirrhina L., Cryptantha barbigera (Gray) Greene

Surface water within 25 m? Surface water type: stream Surface rocks: schist Landform: Drainage channel Side slope Light exposure: open Soil type: sandy loam Soil moisture: dry 
Point Intercept Transect (50m) % Cover Boulder 2 Cobble 21 Gravel 12 Litter (duff) 27 Sand 44 Stone 12 Bromus rubens L. 4 Cryptantha barbigera (Gray) Greene 2 Cryptobiotic soil 2 Encelia farinosa Gray ex Torr. 6 Ephedra fasciculata A. Nels. 3 Pluchea sericea (Nutt.) Coville 30 Tamarix ramosissima Ledeb. 11 Vulpia microstachys 4 
Daubenmire Scale Cover Data from 50m Transect 
Ground Cover Category  Meters  Cover Scale  
Bare Soil  5  1 <1%  
Bare Soil  15  2 1-5%  
Bare Soil  25  1 <1%  
Bare Soil  35  1 <1%  
Bare Soil  45  1 <1%  
Bedrock  5  3 5-10%  
Bedrock  15  5 25-50%  
Bedrock  25  3 5-10%  
Bedrock  35  3 5-10%  
Bedrock  45  4 10-25%  
Boulder  5  3 5-10%  
Boulder  15  1 <1%  
Boulder  25  2 1-5%  
Boulder  35  2 1-5%  

Boulder  45  3 5-10%  
Coarse woody debris  5  1 <1%  
Coarse woody debris  15  1 <1%  
Coarse woody debris  25  2 1-5%  
Coarse woody debris  35  2 1-5%  
Coarse woody debris  45  2 1-5%  
Cobble  5  3 5-10%  
Cobble  15  2 1-5%  
Cobble  25  3 5-10%  
Cobble  35  4 10-25%  
Cobble  45  3 5-10%  
Gravel  5  3 5-10%  
Gravel  15  2 1-5%  
Gravel  25  3 5-10%  
Gravel  35  2 1-5%  
Gravel  45  2 1-5%  
Litter (duff)  5  3 5-10%  
Litter (duff)  15  3 5-10%  
Litter (duff)  25  4 10-25%  
Litter (duff)  35  3 5-10%  
Litter (duff)  45  4 10-25%  
Sand  5  2 1-5%  
Sand  15  3 5-10%  
Sand  25  4 10-25%  
Sand  35  4 10-25%  
Sand  45  4 10-25%  
Stone  5  3 5-10%  
Stone  15  4 10-25%  
Stone  25  2 1-5%  
Stone  35  3 5-10%  
Stone  45  4 10-25%  
Woody debris structure  35  1 <1%  
Woody debris structure  45  1 <1%  
Species Name  Meters  Tree Age  Cover Scale  
Aristida purpurea Nutt.  5  2 1-5%  
Aristida purpurea Nutt.  15  2 1-5%  
Artemisia ludoviciana Nutt.  15  5 25-50%  
Ayenia filiformis Ayenia filiformis  5  1 <1%  
Baccharis emoryi Gray  5  S Seedling  1 <1%  
Baccharis emoryi Gray  15  S Seedling  1 <1%  
Baccharis emoryi Gray  25  S Seedling  1 <1%  
Bebbia juncea (Benth.) Greene var. aspera Greene  35  1 <1%  
Bromus rubens L.  5  1 <1%  
Bromus rubens L.  15  1 <1%  
Bromus rubens L.  25  1 <1%  
Cryptantha barbigera (Gray) Greene  5  1 <1%  
Cryptobiotic soil  5  1 <1%  
Cryptobiotic soil  15  2 1-5%  
Dasyochloa pulchella (Kunth) Willd. ex Rydb.  5  1 <1%  

Descurainia pinnata (Walt.) Britt.  5  1 <1%  
Encelia farinosa Gray ex Torr.  5  S Seedling  4 10-25%  
Encelia farinosa Gray ex Torr.  15  S Seedling  1 <1%  
Encelia farinosa Gray ex Torr.  25  S Seedling  1 <1%  
Ephedra fasciculata A. Nels.  5  2 1-5%  
Eragrostis cilianensis (All.) Vign. ex Janchen  15  1 <1%  
Eriogonum inflatum Torr. & Frm.  5  1 <1%  
Mammillaria grahamii Engelm. var. grahamii  5  1 <1%  
Mammillaria grahamii Engelm. var. grahamii  35  1 <1%  
Mirabilis bigelovii Gray  5  1 <1%  
Muhlenbergia asperifolia (Nees & Meyen ex Trin.) Parodi  15  1 <1%  
Opuntia basilaris Engelm. & Bigelow var. longiareolata (Clover & Jotter) L. Benson  5  1 <1%  
Plantago patagonica Jacq.  5  1 <1%  
Pluchea sericea (Nutt.) Coville  15  M Mature  5 25-50%  
Pluchea sericea (Nutt.) Coville  25  M Mature  4 10-25%  
Pluchea sericea (Nutt.) Coville  35  M Mature  4 10-25%  
Pluchea sericea (Nutt.) Coville  45  M Mature  4 10-25%  
Poa bigelovii Vasey & Scribn.  5  1 <1%  
Porophyllum gracile Benth.  5  2 1-5%  
Pseudognaphalium chilense  5  1 <1%  
Pseudognaphalium chilense  25  1 <1%  
Salix exigua Nutt.  45  1 <1%  
Silene antirrhina L.  5  1 <1%  
Stylocline micropoides Gray  5  1 <1%  
Stylocline micropoides Gray  15  1 <1%  
Tamarix ramosissima Ledeb.  5  P Sapling  2 1-5%  
Tamarix ramosissima Ledeb.  15  P Sapling  3 5-10%  
Tamarix ramosissima Ledeb.  25  P Sapling  4 10-25%  
Tamarix ramosissima Ledeb.  35  P Sapling  4 10-25%  
Tamarix ramosissima Ledeb.  45  S Seedling  4 10-25%  
Thymophylla pentachaeta (DC.) Small  5  1 <1%  
Thymophylla pentachaeta (DC.) Small  15  1 <1%  
Typha latifolia L.  45  1 <1%  
Vulpia microstachys  5  3 5-10%  
Vulpia microstachys  15  2 1-5%  
Vulpia microstachys  25  2 1-5%  

Vegetation Structure Data Soil Data 
Species Name  Meters  # of Hits  Height  
Encelia farinosa Gray ex Torr.  5  2  0-1.0  
Vulpia microstachys  5  1  0-1.0  
Tamarix ramosissima Ledeb.  25  2  0-1.0  
Pluchea sericea (Nutt.) Coville  35  1  2-3  
Pluchea sericea (Nutt.) Coville  35  2  1-2  
Tamarix ramosissima Ledeb.  35  2  1-2  
Tamarix ramosissima Ledeb.  35  5  0-1.0  

Meters  Probe depth (cm)  Reading 1  Reading 2  Reading 3  Average Reading  
5  11  0.04  0.03  0.08  0.05  
15  7  0.16  0.19  0.22  0.19  
25  4  0.06  0.08  0.08  0.07  
35  13  0.6  0.59  0.63  0.61  
45  6  0.67  0.08  0.1  0.28  

Canyon/Park  Crystal Canyon  River mile: 99 R  
Transect Name:  Crystal Creek Transect 2  Type: Tamarisk area  
Date:  5/13/2005  Weather: <15% clouds, stable, low breeze  
Start point:  End point:  
Easting  388463  Easting  388444  
Northing  3999677  Northing  3999631  
GPS accuracy (m)  5  GPS accuracy (m)  7  
Bearing:  206  Elevation (m):  
Aspect (0-360):  280  Slope (degrees):  5  

Transect description: 	Transect runs parallel to perennial creek and is perched on 2m high alluvial terrace about 2m from bankfull.  About 200m upstream of where Crystal Creek leaves cliff-sloped gorge and forms alluvial fan; about 500+m upstream from mouth of crystal creek. 
Geological layer:	Canyon walls are vishnu schist with occasional granite outcrop. 
Habitat type: Riparian Dominant species: Tamarix ramosissima Ledeb., Bromus rubens L., Salix exigua Nutt., Baccharis emoryi Gray Associated species: Cryptantha maritima (Greene) Greene, Machaeranthera pinnatifida (Hook.) Shinners, Baccharis salicifolia 
(Ruiz & Pavn) Pers., Eragrostis cilianensis (All.) Vign. ex Janchen, Camissonia chamaenerioides (Gray)
Raven, Plantago patagonica Jacq., Parietaria hespera Hinton, Thymophylla pentachaeta (DC.) Small, Iva acerosa (Nutt.) R.C.
Jackson, Sporobolus cryptandrus (Torr.) Gray, Cryptobiotic soil, Phragmites australis (Cav.) Trin. ex Steud., Trixis californica
Kellogg, Encelia farinosa Gray ex Torr., Acacia greggii Gray, Muhlenbergia asperifolia (Nees & Meyen ex Trin.) Parodi, Vulpia
microstachys, Cryptantha spp., Isocoma acradenia (Greene) Greene, Aristida spp.

Surface water within 25 m? Surface water type: stream Surface rocks: sandstone schist Landform: Terrace Light exposure: partial-shade Soil type: sandy loam Soil moisture: dry 
Point Intercept Transect (50m) % Cover Boulder 1 Cobble 4 Gravel 3 Litter (duff) 89 Sand 16 Stone 2 Baccharis salicifolia (Ruiz & Pavn) Pers. 63 Salix exigua Nutt. 17 Sporobolus cryptandrus (Torr.) Gray 1 Tamarix ramosissima Ledeb. 51 
Daubenmire Scale Cover Data from 50m Transect 
Ground Cover Category  Meters  Cover Scale  
Boulder  5  3 5-10%  
Boulder  15  2 1-5%  
Boulder  25  1 <1%  
Boulder  35  3 5-10%  
Boulder  45  1 <1%  
Coarse woody debris  5  1 <1%  
Coarse woody debris  15  2 1-5%  
Coarse woody debris  25  3 5-10%  
Coarse woody debris  35  2 1-5%  
Coarse woody debris  45  2 1-5%  
Cobble  5  3 5-10%  
Cobble  15  2 1-5%  
Cobble  25  2 1-5%  
Cobble  35  2 1-5%  
Cobble  45  2 1-5%  

Gravel  5  5 25-50%  
Gravel  15  2 1-5%  
Gravel  25  1 <1%  
Gravel  35  1 <1%  
Gravel  45  2 1-5%  
Litter (duff)  5  3 5-10%  
Litter (duff)  15  6 50-75%  
Litter (duff)  25  7 75-100%  
Litter (duff)  35  6 50-75%  
Litter (duff)  45  6 50-75%  
Sand  5  5 25-50%  
Sand  15  1 <1%  
Sand  25  2 1-5%  
Sand  35  1 <1%  
Sand  45  2 1-5%  
Stone  5  3 5-10%  
Stone  15  2 1-5%  
Stone  25  2 1-5%  
Stone  35  2 1-5%  
Stone  45  2 1-5%  
Woody debris structure  15  1 <1%  
Woody debris structure  35  1 <1%  
Species Name  Meters  Tree Age  Cover Scale  
Baccharis salicifolia (Ruiz & Pavn) Pers.  5  4 10-25%  
Baccharis salicifolia (Ruiz & Pavn) Pers.  15  5 25-50%  
Baccharis salicifolia (Ruiz & Pavn) Pers.  25  4 10-25%  
Baccharis salicifolia (Ruiz & Pavn) Pers.  35  1 <1%  
Baccharis salicifolia (Ruiz & Pavn) Pers.  45  5 25-50%  
Bromus rubens L.  5  1 <1%  
Bromus rubens L.  15  2 1-5%  
Bromus rubens L.  25  2 1-5%  
Bromus rubens L.  35  1 <1%  
Bromus rubens L.  45  2 1-5%  
Cryptantha maritima (Greene) Greene  45  1 <1%  
Cryptobiotic soil  5  3 5-10%  
Cryptobiotic soil  15  1 <1%  
Cryptobiotic soil  25  1 <1%  
Encelia farinosa Gray ex Torr.  15  S Seedling  1 <1%  
Eragrostis cilianensis (All.) Vign. ex Janchen  45  1 <1%  
Machaeranthera pinnatifida (Hook.) Shinners  15  1 <1%  
Muhlenbergia asperifolia (Nees & Meyen ex Trin.) Parodi  5  2 1-5%  
Muhlenbergia asperifolia (Nees & Meyen ex Trin.) Parodi  25  1 <1%  
Muhlenbergia spp.  45  1 <1%  
Salix exigua Nutt.  5  2 1-5%  
Salix exigua Nutt.  15  5 25-50%  
Salix exigua Nutt.  25  4 10-25%  
Salix exigua Nutt.  35  2 1-5%  
Salix exigua Nutt.  45  S Seedling  1 <1%  
Sporobolus cryptandrus (Torr.) Gray  5  1 <1%  
Sporobolus cryptandrus (Torr.) Gray  15  1 <1%  
Tamarix ramosissima Ledeb.  5  P Sapling  2 1-5%  
Tamarix ramosissima Ledeb.  15  P Sapling  4 10-25%  

Tamarix ramosissima Ledeb.  25  P Sapling  4 10-25%  
Tamarix ramosissima Ledeb.  35  P Sapling  6 50-75%  
Tamarix ramosissima Ledeb.  45  P Sapling  4 10-25%  
Trixis californica Kellogg  15  6 50-75%  
Trixis californica Kellogg  25  2 1-5%  
Vulpia microstachys  15  1 <1%  
Vulpia microstachys  45  1 <1%  

Vegetation Structure Data 
Species Name  Meters  # of Hits  Height  
Baccharis salicifolia (Ruiz & Pavn) Pers.  5  1  0-1.0  
Tamarix ramosissima Ledeb.  5  3  0-1.0  
Salix exigua Nutt.  15  2  0-1.0  
Salix exigua Nutt.  15  3  1-2  
Tamarix ramosissima Ledeb.  15  1  0-1.0  
Tamarix ramosissima Ledeb.  15  2  1-2  
Salix exigua Nutt.  25  2  1-2  
Salix exigua Nutt.  25  3  2-3  
Tamarix ramosissima Ledeb.  25  3  0-1.0  
Tamarix ramosissima Ledeb.  35  1  0-1.0  
Tamarix ramosissima Ledeb.  35  10  1-2  
Tamarix ramosissima Ledeb.  35  30  4-5  
Tamarix ramosissima Ledeb.  35  37  2-3  
Tamarix ramosissima Ledeb.  35  45  2-3  
Baccharis salicifolia (Ruiz & Pavn) Pers.  45  5  0-1.0  
Tamarix ramosissima Ledeb.  45  2  0-1.0  
Tamarix ramosissima Ledeb.  45  8  2-3  
Tamarix ramosissima Ledeb.  45  23  1-2  

Soil Data 
Probe depth (cm)  Reading 1  Reading 2  Reading 3  Average Reading  
6  0  0  0  0.00  
6  0.03  0.04  0.5  0.19  
15  0.12  0.12  0.01  0.08  
6  0.03  0.04  0.04  0.04  
11  0.01  0.01  0.01  0.01  

Canyon/Park  Crystal Canyon  River mile: 99 R  
Transect Name:  Crystal Creek Transect 2  Type: Reference  
Date:  5/13/2005  Weather: No clouds, clear sky, getting warmer, to 80F  
Start point:  End point:  
Easting  388512  Easting  388486  
Northing  3999751  Northing  3999714  
GPS accuracy (m)  6  GPS accuracy (m)  6  
Bearing:  206  Elevation (m):  
Aspect (0-360):  271  Slope (degrees):  5  

Transect description: About 600m from mouth of creek & about 130m above where creek makes a sharp turn around a rocky delta. Geological layer: Schist Habitat type: Riparian Dominant species: Baccharis emoryi Gray Associated species: Vulpia microstachys, Bromus rubens L., Eucrypta micrantha (Torr.) Heller, Typha latifolia L., Linanthus 
bigelovii (Gray) Greene, Tamarix ramosissima Ledeb., Acacia greggii Gray, Chaenactis stevioides Hook. &
Arn., Stylocline micropoides Gray, Draba cuneifolia Nutt. ex Torr. & Gray, Galium aparine L., Chamaesyce fendleri (Torr. &
Gray) Small, Gilia spp., Cryptobiotic soil, Cryptantha spp., Mammillaria grahamii Engelm. var. grahamii, Muhlenbergia
asperifolia (Nees & Meyen ex Trin.) Parodi, Equisetum ferrissii Clute (pro sp.), Camissonia walkeri (A. Nels.) Raven,
Astragalus spp., Lepidium lasiocarpum Nutt. var. lasiocarpum, Bebbia juncea (Benth.) Greene var. aspera Greene, Porophyllum
gracile Benth., Encelia farinosa Gray ex Torr., Gutierrezia sarothrae (Pursh) Britt. & Rusby, Aristida purpurea Nutt., Cryptantha
barbigera (Gray) Greene, Cynodon dactylon (L.) Pers., Iva acerosa (Nutt.) R.C. Jackson, Isocoma acradenia (Greene) Greene,
Rafinesquia neomexicana Gray, Chorizanthe spp., Pseudognaphalium chilense, Cryptantha pterocarya (Torr.) Greene, Salix
exigua Nutt.

Surface water within 25 m? Surface water type: stream Surface rocks: cobbles Landform: Drainage channel Light exposure: open Soil type: sand Soil moisture: moist 
Point Intercept Transect (50m) % Cover Bedrock 1 Boulder 3 Cobble 15 Gravel 16 Litter (duff) 74 Sand 53 Stone 14 Woody debris structure 10 Baccharis emoryi Gray 82 Cryptobiotic soil 4 Draba cuneifolia Nutt. ex Torr. & Gray 1 Isocoma acradenia (Greene) Greene 2 Plantago patagonica Jacq. 1 Salix exigua Nutt. 1 Tamarix ramosissima Ledeb. 15 Vulpia microstachys 1 
Daubenmire Scale Cover Data from 50m Transect 
Ground Cover Category  Meters  Cover Scale  
Bedrock  5  2 1-5%  
Boulder  5  2 1-5%  
Boulder  15  2 1-5%  
Boulder  25  3 5-10%  
Boulder  35  3 5-10%  
Boulder  45  3 5-10%  
Cobble  5  3 5-10%  
Cobble  15  4 10-25%  
Cobble  25  4 10-25%  
Cobble  35  4 10-25%  
Cobble  45  4 10-25%  
Gravel  5  5 25-50%  

Gravel  15  2 1-5%  
Gravel  25  2 1-5%  
Gravel  35  3 5-10%  
Gravel  45  4 10-25%  
Litter (duff)  5  4 10-25%  
Litter (duff)  15  5 25-50%  
Litter (duff)  25  6 50-75%  
Litter (duff)  35  5 25-50%  
Litter (duff)  45  4 10-25%  
Sand  5  5 25-50%  
Sand  15  5 25-50%  
Sand  25  4 10-25%  
Sand  35  4 10-25%  
Sand  45  3 5-10%  
Stone  5  4 10-25%  
Stone  15  3 5-10%  
Stone  25  5 25-50%  
Stone  35  4 10-25%  
Stone  45  4 10-25%  
Woody debris structure  5  2 1-5%  
Woody debris structure  15  3 5-10%  
Woody debris structure  25  3 5-10%  
Woody debris structure  35  3 5-10%  
Woody debris structure  45  3 5-10%  
Species Name  Meters  Tree Age  Cover Scale  
Acacia greggii Gray  5  M Mature  1 <1%  
Acacia greggii Gray  35  M Mature  1 <1%  
Aristida purpurea Nutt.  25  1 <1%  
Aristida purpurea Nutt.  35  1 <1%  
Aristida purpurea Nutt.  45  1 <1%  
Astragalus spp.  35  5 25-50%  
Baccharis emoryi Gray  5  M Mature  4 10-25%  
Baccharis emoryi Gray  15  M Mature  5 25-50%  
Baccharis emoryi Gray  25  M Mature  6 50-75%  
Baccharis emoryi Gray  35  M Mature  6 50-75%  
Baccharis emoryi Gray  45  M Mature  4 10-25%  
Bromus rubens L.  5  1 <1%  
Bromus rubens L.  15  1 <1%  
Bromus rubens L.  35  1 <1%  
Bromus rubens L.  45  1 <1%  
Camissonia walkeri (A. Nels.) Raven  25  1 <1%  
Chaenactis stevioides Hook. & Arn.  45  1 <1%  
Chamaesyce fendleri (Torr. & Gray) Small  5  1 <1%  
Chorizanthe spp.  45  1 <1%  
Cryptantha barbigera (Gray) Greene  5  1 <1%  
Cryptantha barbigera (Gray) Greene  15  2 1-5%  
Cryptantha barbigera (Gray) Greene  45  1 <1%  
Cryptantha maritima (Greene) Greene  5  1 <1%  
Cryptantha maritima (Greene) Greene  15  1 <1%  
Cryptantha pterocarya (Torr.) Greene  15  1 <1%  
Cryptantha pterocarya (Torr.) Greene  35  1 <1%  
Cryptantha spp.  5  1 <1%  

Cryptantha spp.  15  1 <1%  
Cryptantha spp.  25  1 <1%  
Cryptantha spp.  35  1 <1%  
Cryptantha spp.  45  1 <1%  
Cryptobiotic soil  5  3 5-10%  
Cryptobiotic soil  15  3 5-10%  
Cryptobiotic soil  25  4 10-25%  
Cryptobiotic soil  35  3 5-10%  
Cryptobiotic soil  45  4 10-25%  
Draba cuneifolia Nutt. ex Torr. & Gray  5  1 <1%  
Encelia farinosa Gray ex Torr.  5  1 <1%  
Encelia farinosa Gray ex Torr.  25  1 <1%  
Equisetum ferrissii Clute (pro sp.)  25  1 <1%  
Eucrypta micrantha (Torr.) Heller  5  1 <1%  
Galium aparine L.  5  1 <1%  
Galium aparine L.  15  1 <1%  
Gilia spp.  5  1 <1%  
Gilia spp.  15  1 <1%  
Gutierrezia sarothrae (Pursh) Britt. & Rusby  35  1 <1%  
Isocoma acradenia (Greene) Greene  5  5 25-50%  
Isocoma acradenia (Greene) Greene  15  1 <1%  
Isocoma acradenia (Greene) Greene  25  1 <1%  
Isocoma acradenia (Greene) Greene  35  1 <1%  
Isocoma acradenia (Greene) Greene  45  1 <1%  
Iva acerosa (Nutt.) R.C. Jackson  15  2 1-5%  
Iva acerosa (Nutt.) R.C. Jackson  25  1 <1%  
Linanthus bigelovii (Gray) Greene  5  1 <1%  
Mammillaria grahamii Engelm. var. grahamii  5  1 <1%  
Muhlenbergia asperifolia (Nees & Meyen ex Trin.) Parodi  15  3 5-10%  
Muhlenbergia asperifolia (Nees & Meyen ex Trin.) Parodi  25  3 5-10%  
Muhlenbergia asperifolia (Nees & Meyen ex Trin.) Parodi  35  2 1-5%  
Muhlenbergia asperifolia (Nees & Meyen ex Trin.) Parodi  45  1 <1%  
Pluchea sericea (Nutt.) Coville  45  1 <1%  
Salix exigua Nutt.  15  2 1-5%  
Salix exigua Nutt.  25  2 1-5%  
Salix exigua Nutt.  35  2 1-5%  
Sporobolus cryptandrus (Torr.) Gray  35  1 <1%  
Sporobolus cryptandrus (Torr.) Gray  45  1 <1%  
Stylocline micropoides Gray  5  1 <1%  
Stylocline micropoides Gray  15  1 <1%  
Stylocline micropoides Gray  45  1 <1%  
Tamarix ramosissima Ledeb.  5  M Mature  3 5-10%  
Tamarix ramosissima Ledeb.  15  M Mature  4 10-25%  
Tamarix ramosissima Ledeb.  25  M Mature  3 5-10%  
Tamarix ramosissima Ledeb.  35  M Mature  2 1-5%  
Tamarix ramosissima Ledeb.  45  M Mature  4 10-25%  
Typha latifolia L.  15  1 <1%  
Typha latifolia L.  25  1 <1%  
Vulpia microstachys  5  2 1-5%  
Vulpia microstachys  15  1 <1%  
Vulpia microstachys  25  1 <1%  
Vulpia microstachys  35  1 <1%  

Vegetation Structure Data 
Species Name  Meters  # of Hits  Height  
Baccharis emoryi Gray  5  2  1-2  
Baccharis emoryi Gray  5  8  0-1.0  
Tamarix ramosissima Ledeb.  15  1  0-1.0  
Baccharis emoryi Gray  25  3  0-1.0  
Baccharis emoryi Gray  35  2  1-2  
Baccharis emoryi Gray  35  5  0-1.0  
Tamarix ramosissima Ledeb.  45  5  0-1.0  

Soil Data
Crews did not collect soil data for this transect.

Canyon/Park  Nankoweap Creek (lower)  River mile:  52.1 R  
Transect Name:  Nankoweap Creek Transect 1  Type:  Tamarisk area  
Date:  10/1/2004  Weather:  Stormy weather, clouds and overcast  
Start point:  End point:  
Easting  422461  Easting  422487  
Northing  4017798  Northing  4017829  
GPS accuracy (m)  6.4  GPS accuracy (m)  8  
Bearing:  41  Elevation (m):  
Aspect (0-360):  Slope (degrees):  

Transect description:	Transect top starts 704 m from where trail drops into drainage. Start point is upstream with end downstream. Start point is on red sandstone boulder almost flush with ground; also 15m upstream from the photopoint boulder.  Put small white dot on start rock, covered with another sandstone boulder.  End has no rock but is at the trunk of the cottonwood tree. Transect lines up with large round boulder on the near slope.  Across the river there is a vertical cave or chimney in the wall toward the top of the Muav that is also in line.  From 41m mark on transect toward start point, lines up with large black boulder 3/4 up. 
Geological layer: Muav limestone
Habitat type: Riparian Great Basin desert scrub
Dominant species: Stephanomeria pauciflora (Torr.) A. Nels., Brickellia longifolia S. Wats., Tamarix ramosissima Ledeb.
Associated species: Muhlenbergia asperifolia (Nees & Meyen ex Trin.) Parodi, Bromus rubens L., Gutierrezia sarothrae (Pursh)

Britt. & Rusby, Populus fremontii S. Wats., Sphaeralcea ambigua Gray, Aristida purpurea Nutt., Baccharis emoryi Gray, Erodium cicutarium (L.) L'Hr. ex Ait., Ephedra spp., Sporobolus flexuosus (Thurb. ex Vasey) Rydb. 
Surface water within 25 m? Surface water type: Surface rocks: cobbles Landform: Drainage channel Interfluve Light exposure: open Soil type: sand Soil moisture: dry 
Point Intercept Transect (50m) % Cover Bare Soil 55 Cobble 19 Litter (duff) 25 Aristida purpurea Nutt. 2 Brickellia longifolia S. Wats. 13 Bromus rubens L. 2 Gutierrezia sarothrae (Pursh) Britt. & Rusby 4 Populus fremontii S. Wats. 5 Stephanomeria pauciflora (Torr.) A. Nels. 6 Tamarix ramosissima Ledeb. 19 
Daubenmire Scale Cover Data from 50m Transect 
Crews did not collect ground cover data for this transect. 
Species Name  Meters  Tree Age  Cover Scale  
Aristida purpurea Nutt.  5  1 <1%  
Aristida purpurea Nutt.  15  1 <1%  
Aristida purpurea Nutt.  25  2 1-5%  
Aristida purpurea Nutt.  35  1 <1%  
Baccharis emoryi Gray  5  2 1-5%  
Baccharis emoryi Gray  35  2 1-5%  
Brickellia longifolia S. Wats.  5  2 1-5%  
Brickellia longifolia S. Wats.  15  2 1-5%  
Brickellia longifolia S. Wats.  25  3 5-10%  
Brickellia longifolia S. Wats.  35  3 5-10%  
Brickellia longifolia S. Wats.  45  3 5-10%  
Bromus rubens L.  5  3 5-10%  
Bromus rubens L.  45  1 <1%  
Ephedra spp.  25  2 1-5%  
Erodium cicutarium (L.) L'Hr. ex Ait.  5  1 <1%  
Erodium cicutarium (L.) L'Hr. ex Ait.  35  1 <1%  
Gutierrezia sarothrae (Pursh) Britt. & Rusby  25  2 1-5%  

Gutierrezia sarothrae (Pursh) Britt. & Rusby  35  2 1-5%  
Muhlenbergia asperifolia (Nees & Meyen ex Trin.) Parodi  25  2 1-5%  
Populus fremontii S. Wats.  35  2 1-5%  
Sphaeralcea ambigua Gray  5  1 <1%  
Sporobolus flexuosus (Thurb. ex Vasey) Rydb.  25  1 <1%  
Sporobolus flexuosus (Thurb. ex Vasey) Rydb.  35  1 <1%  
Sporobolus flexuosus (Thurb. ex Vasey) Rydb.  45  2 1-5%  
Stephanomeria pauciflora (Torr.) A. Nels.  5  4 10-25%  
Stephanomeria pauciflora (Torr.) A. Nels.  15  2 1-5%  
Stephanomeria pauciflora (Torr.) A. Nels.  25  2 1-5%  
Stephanomeria pauciflora (Torr.) A. Nels.  35  2 1-5%  
Tamarix ramosissima Ledeb.  5  M Mature  5 25-50%  
Tamarix ramosissima Ledeb.  15  P Sapling  2 1-5%  

Vegetation Structure Data 
Species Name  Meters  # of Hits  Height  
Tamarix ramosissima Ledeb.  5  1  1-2  
Tamarix ramosissima Ledeb.  5  6  0-1.0  
Aristida purpurea Nutt.  15  1  0-1.0  
Stephanomeria pauciflora (Torr.) A. Nels.  15  3  0-1.0  
Gutierrezia sarothrae (Pursh) Britt. & Rusby  25  1  0-1.0  

Soil Data
Crews did not collect soil data for this transect.

Canyon/Park  Nankoweap Creek (lower)  River mile:  52.1 R  
Transect Name:  Nankoweap Creek Transect 1  Type:  Reference  
Date:  10/2/2004  Weather:  Stormy weather, clouds and overcast  
Start point:  End point:  
Easting  422441  Easting  422481  
Northing  4017839  Northing  4017869  
GPS accuracy (m)  8  GPS accuracy (m)  8  
Bearing:  50  Elevation (m):  
Aspect (0-360):  Slope (degrees):  

Transect description: 	Top and bottom are at driftwood logs.  Transect 1B is located 25m left of and parallel to 1A at about the same level canyon slope.  Top is on limestone boulder at a high point next to an ancient driftwood pile. A large ACENEG  is located to the left of the transect at 15m mark.  Start boulder has a dimple in the top (see photo).  Bottom is a red sandstone boulder next to a log 30cm x 1.5m.  Top and bottom are marked with red veg knob. 
Geological layer: Muav limestone / Bright Angel Shale Habitat type: Riparian Great Basin desert scrub Dominant species: Thymophylla pentachaeta (DC.) Small, Gutierrezia sarothrae (Pursh) Britt. & Rusby, Encelia farinosa Gray 
ex Torr., Stephanomeria pauciflora (Torr.) A. Nels. 
Associated species:	Dasyochloa pulchella (Kunth) Willd. ex Rydb., Ephedra nevadensis S. Wats., Brickellia longifolia S. Wats., Tiquilia latior (I.M. Johnston) A. Richards., Muhlenbergia porteri Scribn. ex Beal, Acacia greggii Gray, Bouteloua eriopoda (Torr.) Torr., Erodium cicutarium (L.) L'Hr. ex Ait., Eriogonum inflatum Torr. & Frm., Bromus rubens L., Sporobolus flexuosus (Thurb. ex Vasey) Rydb., Sphaeralcea ambigua Gray, Aristida spp., Machaeranthera pinnatifida (Hook.) Shinners, Opuntia basilaris Engelm. & Bigelow, Opuntia erinacea Engelm. & Bigelow ex Engelm. 
Surface water within 25 m? Surface water type: Surface rocks: sandstone limestone Landform: Drainage channel Interfluve Light exposure: open Soil type: sand Soil moisture: dry 
Point Intercept Transect (50m) % Cover Bare Soil 24 Cobble 52 Litter (duff) 12 Woody debris structure 1 Acacia greggii Gray 2 Aristida purpurea Nutt. 1 Aristida spp. 2 Bouteloua eriopoda (Torr.) Torr. 5 Bromus rubens L. 8 Cryptobiotic soil 10 Encelia farinosa Gray ex Torr. 1 Gutierrezia sarothrae (Pursh) Britt. & Rusby 2 Stephanomeria pauciflora (Torr.) A. Nels. 4 Thymophylla pentachaeta (DC.) Small 2 
Daubenmire Scale Cover Data from 50m Transect 
Crews did not collect ground cover data for this transect. 
Species Name  Meters  Tree Age  Cover Scale  
Acacia greggii Gray  15  M Mature  3 5-10%  
Acacia greggii Gray  25  P Sapling  1 <1%  
Aristida spp.  5  2 1-5%  
Aristida spp.  15  2 1-5%  
Aristida spp.  35  1 <1%  
Aristida spp.  45  2 1-5%  
Bouteloua eriopoda (Torr.) Torr.  5  2 1-5%  
Bouteloua eriopoda (Torr.) Torr.  15  1 <1%  
Bouteloua eriopoda (Torr.) Torr.  25  2 1-5%  
Bouteloua eriopoda (Torr.) Torr.  35  1 <1%  
Brickellia longifolia S. Wats.  35  1 <1%  
Bromus rubens L.  15  1 <1%  
Bromus rubens L.  25  2 1-5%  

Bromus rubens L.  35  2 1-5%  
Bromus rubens L.  45  1 <1%  
Encelia farinosa Gray ex Torr.  5  1 <1%  
Encelia farinosa Gray ex Torr.  15  1 <1%  
Encelia farinosa Gray ex Torr.  25  2 1-5%  
Encelia farinosa Gray ex Torr.  35  1 <1%  
Encelia farinosa Gray ex Torr.  45  2 1-5%  
Ephedra nevadensis S. Wats.  25  2 1-5%  
Eriogonum inflatum Torr. & Frm.  15  2 1-5%  
Eriogonum inflatum Torr. & Frm.  45  1 <1%  
Erioneuron pulchellum  25  1 <1%  
Erioneuron pulchellum  45  1 <1%  
Erodium cicutarium (L.) L'Hr. ex Ait.  25  1 <1%  
Gutierrezia sarothrae (Pursh) Britt. & Rusby  5  2 1-5%  
Gutierrezia sarothrae (Pursh) Britt. & Rusby  15  3 5-10%  
Gutierrezia sarothrae (Pursh) Britt. & Rusby  25  2 1-5%  
Gutierrezia sarothrae (Pursh) Britt. & Rusby  35  2 1-5%  
Gutierrezia sarothrae (Pursh) Britt. & Rusby  45  1 <1%  
Machaeranthera pinnatifida (Hook.) Shinners  25  2 1-5%  
Muhlenbergia porteri Scribn. ex Beal  15  1 <1%  
Opuntia basilaris Engelm. & Bigelow  25  1 <1%  
Opuntia basilaris Engelm. & Bigelow  35  1 <1%  
Opuntia basilaris Engelm. & Bigelow  45  1 <1%  
Opuntia erinacea Engelm. & Bigelow ex Engelm.  25  2 1-5%  
Opuntia erinacea Engelm. & Bigelow ex Engelm.  45  2 1-5%  
Sphaeralcea ambigua Gray  25  1 <1%  
Sphaeralcea ambigua Gray  45  1 <1%  
Sporobolus flexuosus (Thurb. ex Vasey) Rydb.  5  1 <1%  
Sporobolus flexuosus (Thurb. ex Vasey) Rydb.  15  1 <1%  
Sporobolus flexuosus (Thurb. ex Vasey) Rydb.  25  1 <1%  
Sporobolus flexuosus (Thurb. ex Vasey) Rydb.  35  2 1-5%  
Sporobolus flexuosus (Thurb. ex Vasey) Rydb.  45  1 <1%  
Stephanomeria pauciflora (Torr.) A. Nels.  5  2 1-5%  
Stephanomeria pauciflora (Torr.) A. Nels.  15  2 1-5%  
Stephanomeria pauciflora (Torr.) A. Nels.  25  3 5-10%  
Stephanomeria pauciflora (Torr.) A. Nels.  35  3 5-10%  
Stephanomeria pauciflora (Torr.) A. Nels.  45  2 1-5%  
Thymophylla pentachaeta (DC.) Small  5  2 1-5%  
Thymophylla pentachaeta (DC.) Small  15  2 1-5%  
Thymophylla pentachaeta (DC.) Small  25  2 1-5%  
Thymophylla pentachaeta (DC.) Small  35  2 1-5%  
Thymophylla pentachaeta (DC.) Small  45  2 1-5%  
Tiquilia latior (I.M. Johnston) A. Richards.  5  2 1-5%  
Tiquilia latior (I.M. Johnston) A. Richards.  25  1 <1%  
Tiquilia latior (I.M. Johnston) A. Richards.  35  3 5-10%  
Tiquilia latior (I.M. Johnston) A. Richards.  45  2 1-5%  

Vegetation Structure Data 
Species Name  Meters  # of Hits  Height  
Stephanomeria pauciflora (Torr.) A. Nels.  15  3  0-1.0  
Bouteloua eriopoda (Torr.) Torr.  25  1  0-1.0  
Bromus rubens L.  25  1  0-1.0  

Soil Data Crews did not collect soil data for this transect. 
Appendix B -43 
Canyon/Park  Nankoweap Creek (lower) River mile:  52.1 R  
Transect Name:  Nankoweap Creek Transect 2 Type:  Tamarisk area  
Date:  10/2/2004  Weather:  Stormy weather, clouds and overcast  
Start point:  End point:  
Easting  421235  Easting  421228  
Northing  4016988  Northing  4017042  
GPS accuracy (m)  15  GPS accuracy (m)  6  
Bearing:  340  Elevation (m):  
Aspect (0-360):  Slope (degrees):  

Transect description:	Runs down right side of wash along muav wall.  Top of transect is at base of ACENEG in the Muav wall on a red sandstone boulder 50x50cm. Painted a red veg knob on boulder and covered it with a Muav slab 15x15cm.  Transect runs close to edge of wall toward a big stripey boulder half way up the talus slope opposite.  Transect ends in wash ~5m from Muav ledges/wall on right, and ~1.5m left of 5" dbh cottonwood. 
Geological layer: Muav limestone Habitat type: Riparian Great Basin desert scrub Dominant species: Tamarix ramosissima Ledeb., Artemisia ludoviciana Nutt., Acacia greggii Gray Associated species: Sporobolus flexuosus (Thurb. ex Vasey) Rydb., Echinocereus spp., Baccharis emoryi Gray, Erodium 
cicutarium (L.) L'Hr. ex Ait., Ephedra spp., Gutierrezia sarothrae (Pursh) Britt. & Rusby, Ephedra
nevadensis S. Wats., Bromus rubens L., Aristida purpurea Nutt., Baccharis sergiloides Gray, Encelia frutescens (Gray) Gray,
Brickellia longifolia S. Wats.

Surface water within 25 m? Surface water type: stream Surface rocks: sandstone Landform: Drainage channel Interfluve Light exposure: open Soil type: sand Soil moisture: dry 
Point Intercept Transect (50m) % Cover Bare Soil 36 Cobble 42 Litter (duff) 14 Woody debris structure 7 Acacia greggii Gray 4 Artemisia ludoviciana Nutt. 3 Baccharis emoryi Gray 6 Brickellia longifolia S. Wats. 1 Bromus rubens L. 11 Cryptobiotic soil 1 Erodium cicutarium (L.) L'Hr. ex Ait. 1 Tamarix ramosissima Ledeb. 16 
Daubenmire Scale Cover Data from 50m Transect 
Crews did not collect ground cover data for this transect. 
Species Name  Meters  Tree Age  Cover Scale  
Acacia greggii Gray  5  P Sapling  2 1-5%  
Acacia greggii Gray  15  P Sapling  2 1-5%  
Acacia greggii Gray  35  S Seedling  1 <1%  
Aristida purpurea Nutt.  5  2 1-5%  
Aristida purpurea Nutt.  35  1 <1%  
Artemisia ludoviciana Nutt.  5  2 1-5%  
Artemisia ludoviciana Nutt.  15  2 1-5%  
Artemisia ludoviciana Nutt.  25  2 1-5%  
Artemisia ludoviciana Nutt.  35  3 5-10%  
Baccharis emoryi Gray  45  3 5-10%  
Baccharis sergiloides Gray  45  2 1-5%  
Brickellia longifolia S. Wats.  35  2 1-5%  
Bromus rubens L.  5  3 5-10%  
Bromus rubens L.  15  2 1-5%  
Bromus rubens L.  25  2 1-5%  
Bromus rubens L.  35  2 1-5%  

Bromus rubens L.  45  2 1-5%  
Echinocereus spp.  5  2 1-5%  
Encelia frutescens (Gray) Gray  35  1 <1%  
Ephedra nevadensis S. Wats.  5  2 1-5%  
Ephedra spp.  25  2 1-5%  
Ephedra spp.  35  2 1-5%  
Erigeron speciosus (Lindl.) DC. var. macranthus (Nutt.) Cronq.  25  1 <1%  
Erodium cicutarium (L.) L'Hr. ex Ait.  5  1 <1%  
Erodium cicutarium (L.) L'Hr. ex Ait.  25  2 1-5%  
Gutierrezia sarothrae (Pursh) Britt. & Rusby  5  2 1-5%  
Gutierrezia sarothrae (Pursh) Britt. & Rusby  25  2 1-5%  
Gutierrezia sarothrae (Pursh) Britt. & Rusby  35  3 5-10%  
Sporobolus flexuosus (Thurb. ex Vasey) Rydb.  5  1 <1%  
Sporobolus flexuosus (Thurb. ex Vasey) Rydb.  35  1 <1%  
Tamarix ramosissima Ledeb.  5  M Mature  2 1-5%  
Tamarix ramosissima Ledeb.  15  M Mature  5 25-50%  
Tamarix ramosissima Ledeb.  25  P Sapling  2 1-5%  
Tamarix ramosissima Ledeb.  35  M Mature  4 10-25%  
Tamarix ramosissima Ledeb.  45  M Mature  4 10-25%  

Vegetation Structure Data 
Species Name  Meters  # of Hits  Height  
Tamarix ramosissima Ledeb.  5  2  1-2  
Tamarix ramosissima Ledeb.  5  4  0-1.0  
Tamarix ramosissima Ledeb.  15  1  0-1.0  
Tamarix ramosissima Ledeb.  15  3  1-2  
Bromus rubens L.  35  1  0-1.0  
Baccharis emoryi Gray  45  1  0-1.0  
Baccharis emoryi Gray  45  2  1-2  
Tamarix ramosissima Ledeb.  45  1  2-3  

Soil Data
Crews did not collect soil data for this transect.

Canyon/Park  Nankoweap Creek (lower)  River mile:  52.1 R  
Transect Name:  Nankoweap Creek Transect 2  Type:  Reference  
Date:  10/2/2004  Weather:  Stormy weather, clouds and overcast  
Start point:  End point:  
Easting  421237  Easting  421245  
Northing  4017009  Northing  4016973  
GPS accuracy (m)  7  GPS accuracy (m)  7  
Bearing:  350  Elevation (m):  
Aspect (0-360):  Slope (degrees):  

Transect description: 	Transect ends at top of 2A, ~5m over toward wash. Transect top is a large cottonwood tree in the drainage, 350 degree bearing from tree to bottom, no mark at top.  Transect bottom is at the same level as the top of 2A, but over ~5m in a brush pile.  End point has a red veg knob on a smallish (10x20cm) limestone boulder almost flush with ground.  Covered with larger 30x30cm boulder, right below downstream end of brush/debris pile. 
Geological layer: Muav limestone Habitat type: Riparian Great Basin desert scrub Dominant species: Stephanomeria pauciflora (Torr.) A. Nels., Populus tremuloides Michx. Associated species: Gutierrezia sarothrae (Pursh) Britt. & Rusby, Machaeranthera pinnatifida (Hook.) Shinners, Acacia greggii 
Gray, Stanleya pinnata (Pursh) Britt., Datura wrightii Regel, Eriogonum inflatum Torr. & Frm., Artemisia ludoviciana Nutt., Brickellia longifolia S. Wats., Mentzelia albicaulis (Dougl. ex Hook.) Dougl. ex Torr. & Gray, Sphaeralcea ambigua Gray, Opuntia erinacea Engelm. & Bigelow ex Engelm., Bromus rubens L., Encelia frutescens (Gray) Gray, Sporobolus flexuosus (Thurb. ex Vasey) Rydb., Tiquilia latior (I.M. Johnston) A. Richards., Achnatherum hymenoides (Roemer & J.A. Schultes) Barkworth, Erodium cicutarium (L.) L'Hr. ex Ait. 
Surface water within 25 m? Surface water type: Surface rocks: limestone Landform: Drainage channel Interfluve Light exposure: open Soil type: sandy loam Soil moisture: dry 
Point Intercept Transect (50m) % Cover Bare Soil 40 Cobble 48 Litter (duff) 4 Woody debris structure 9 Achnatherum hymenoides (Roemer & J.A. Schultes) Barkworth 2 Aristida purpurea Nutt. 1 Bromus rubens L. 2 Encelia frutescens (Gray) Gray 1 Erodium cicutarium (L.) L'Hr. ex Ait. 3 Gutierrezia sarothrae (Pursh) Britt. & Rusby 1 Populus tremuloides Michx. 7 Stanleya pinnata (Pursh) Britt. 1 
Daubenmire Scale Cover Data from 50m Transect 
Crews did not collect ground cover data for this transect. 
Species Name  Meters  Tree Age  Cover Scale  
Acacia greggii Gray  15  P Sapling  1 <1%  
Achnatherum hymenoides (Roemer & J.A. Schultes) Barkworth  45  2 1-5%  
Artemisia ludoviciana Nutt.  5  1 <1%  
Artemisia ludoviciana Nutt.  45  2 1-5%  
Brickellia longifolia S. Wats.  15  2 1-5%  
Bromus rubens L.  5  1 <1%  
Bromus rubens L.  25  2 1-5%  
Bromus rubens L.  35  2 1-5%  
Bromus rubens L.  45  2 1-5%  
Datura wrightii Regel  25  1 <1%  
Datura wrightii Regel  45  2 1-5%  
Encelia frutescens (Gray) Gray  45  2 1-5%  
Eriogonum inflatum Torr. & Frm.  35  2 1-5%  
Erodium cicutarium (L.) L'Hr. ex Ait.  25  1 <1%  

Erodium cicutarium (L.) L'Hr. ex Ait.  35  3 5-10%  
Erodium cicutarium (L.) L'Hr. ex Ait.  45  1 <1%  
Gutierrezia sarothrae (Pursh) Britt. & Rusby  25  2 1-5%  
Machaeranthera pinnatifida (Hook.) Shinners  15  1 <1%  
Mentzelia albicaulis (Dougl. ex Hook.) Dougl. ex Torr. & Gray  25  1 <1%  
Mentzelia albicaulis (Dougl. ex Hook.) Dougl. ex Torr. & Gray  35  2 1-5%  
Sphaeralcea ambigua Gray  35  1 <1%  
Sporobolus flexuosus (Thurb. ex Vasey) Rydb.  45  1 <1%  
Stephanomeria pauciflora (Torr.) A. Nels.  5  1 <1%  
Stephanomeria pauciflora (Torr.) A. Nels.  15  2 1-5%  
Stephanomeria pauciflora (Torr.) A. Nels.  25  2 1-5%  
Stephanomeria pauciflora (Torr.) A. Nels.  45  1 <1%  
Tiquilia latior (I.M. Johnston) A. Richards.  45  1 <1%  

Vegetation Structure Data No hits. Soil Data Crews did not collect soil data for this transect. 
Canyon/Park  Nankoweap Creek (middle)  River mile:  52.1 R  
Transect Name:  Nankoweap Creek Transect 3  Type:  Tamarisk area  
Date:  10/3/2004  Weather:  Clear, warm  
Start point:  End point:  
Easting  420988  Easting  420983  
Northing  4016603  Northing  4016652  
GPS accuracy (m)  20  GPS accuracy (m)  11  
Bearing:  350  Elevation (m):  
Aspect (0-360):  Slope (degrees):  

Transect description: Runs along left edge of wash.  Transect top is a large 1.5x1.5 m grey limestone boulder on the left edge of 
the wash. Ends right of a tan 2m x 2m boulder embedded in the wash. This is downstream from a large 
mesquite perched on the edge of the bank. 
Geological layer: Muav limestone Habitat type: Riparian Great Basin desert scrub Dominant species: Artemisia ludoviciana Nutt., Tamarix ramosissima Ledeb., Brickellia longifolia S. Wats. Associated species: Bromus rubens L., Stephanomeria pauciflora (Torr.) A. Nels., Aster species, Ephedra spp., Baccharis 
emoryi Gray, Purshia mexicana (D. Don) Henrickson, Achnatherum hymenoides (Roemer & J.A. Schultes)
Barkworth, Aristida spp., Gnaphalium chilense, Cercis orbiculata Greene, Gutierrezia sarothrae (Pursh) Britt. & Rusby,
Equisetum ferrissii Clute (pro sp.), Oenothera spp., Sporobolus flexuosus (Thurb. ex Vasey) Rydb., Machaeranthera spp.,
Populus fremontii S. Wats., Chrysothamnus spp., Opuntia erinacea Engelm. & Bigelow ex Engelm.

Surface water within 25 m? Surface water type: Surface rocks: limestone Landform: Drainage channel Interfluve Light exposure: open partial-shade Soil type: sand Soil moisture: dry 
Point Intercept Transect (50m) % Cover 
1 Bare Soil 66 Cobble 23 Litter (duff) 42 Artemisia ludoviciana Nutt. 2 Aster species 54 Baccharis emoryi Gray 1 Brickellia longifolia S. Wats. 7 Bromus rubens L. 1 Equisetum ferrissii Clute (pro sp.) 2 Muhlenbergia asperifolia (Nees & Meyen ex Trin.) Parodi 1 Purshia spp. 2 Stephanomeria pauciflora (Torr.) A. Nels. 6 Tamarix ramosissima Ledeb. 15 
Daubenmire Scale Cover Data from 50m Transect 
Crews did not collect ground cover data for this transect. 
Species Name  Meters  Tree Age  Cover Scale  
Achnatherum hymenoides (Roemer & J.A. Schultes) Barkworth  5  1 <1%  
Achnatherum hymenoides (Roemer & J.A. Schultes) Barkworth  35  2 1-5%  
Achnatherum hymenoides (Roemer & J.A. Schultes) Barkworth  45  2 1-5%  
Aristida spp.  5  1 <1%  
Aristida spp.  15  2 1-5%  
Aristida spp.  25  1 <1%  
Artemisia ludoviciana Nutt.  5  2 1-5%  
Artemisia ludoviciana Nutt.  15  2 1-5%  
Artemisia ludoviciana Nutt.  25  2 1-5%  
Artemisia ludoviciana Nutt.  35  3 5-10%  
Aster species  5  4 10-25%  
Aster species  15  2 1-5%  
Aster species  25  3 5-10%  
Aster species  25  4 10-25%  
Aster species  35  2 1-5%  

Aster species  45  3 5-10%  
Aster species  45  4 10-25%  
Baccharis emoryi Gray  5  3 5-10%  
Baccharis emoryi Gray  15  3 5-10%  
Brickellia longifolia S. Wats.  5  2 1-5%  
Brickellia longifolia S. Wats.  15  3 5-10%  
Brickellia longifolia S. Wats.  25  2 1-5%  
Brickellia longifolia S. Wats.  35  3 5-10%  
Brickellia longifolia S. Wats.  45  3 5-10%  
Bromus rubens L.  5  3 5-10%  
Bromus rubens L.  15  2 1-5%  
Bromus rubens L.  35  2 1-5%  
Bromus rubens L.  45  2 1-5%  
Cercis orbiculata Greene  15  3 5-10%  
Chrysothamnus spp.  15  2 1-5%  
Ephedra spp.  5  2 1-5%  
Equisetum ferrissii Clute (pro sp.)  5  2 1-5%  
Gutierrezia sarothrae (Pursh) Britt. & Rusby  15  2 1-5%  
Gutierrezia sarothrae (Pursh) Britt. & Rusby  25  1 <1%  
Machaeranthera spp.  15  2 1-5%  
Oenothera spp.  5  1 <1%  
Populus fremontii S. Wats.  25  M Mature  4 10-25%  
Purshia mexicana (D. Don) Henrickson  5  M Mature  2 1-5%  
Purshia mexicana (D. Don) Henrickson  15  S Seedling  1 <1%  
Sporobolus flexuosus (Thurb. ex Vasey) Rydb.  35  2 1-5%  
Stephanomeria pauciflora (Torr.) A. Nels.  15  2 1-5%  
Stephanomeria pauciflora (Torr.) A. Nels.  25  2 1-5%  
Stephanomeria pauciflora (Torr.) A. Nels.  35  2 1-5%  
Stephanomeria pauciflora (Torr.) A. Nels.  45  1 <1%  
Tamarix ramosissima Ledeb.  5  M Mature  4 10-25%  
Tamarix ramosissima Ledeb.  25  M Mature  4 10-25%  

Vegetation Structure Data 
type  Species Name  Meters  # of Hits  Height  
Tamarisk area  Equisetum ferrissii Clute (pro sp.)  5  2  0-1.0  
Tamarisk area  Tamarix ramosissima Ledeb.  5  5  0-1.0  
Tamarisk area  Brickellia longifolia S. Wats.  15  5  0-1.0  
Tamarisk area  Aster species  45  1  0-1.0  

Soil Data
Crews did not collect soil data for this transect.

Canyon/Park  Nankoweap Creek (middle)  River mile:  52.1 R  
Transect Name:  Nankoweap Creek Transect 3  Type:  Reference  
Date:  10/3/2004  Weather:  Clear, warm  
Start point:  End point:  
Easting  420994  Easting  421039  
Northing  4016678  Northing  4016704  
GPS accuracy (m)  4.3  GPS accuracy (m)  5.5  
Bearing:  61  Elevation (m):  
Aspect (0-360):  Slope (degrees):  

Transect description:	Transect next to 2 house-sized limestone boulders.  Transect start near 2 large house size boulders closest to creekbed.  On NW side of creekbed (creek left). Start point on NW corner of 3x4m large flat gray limestone boulder tucked between white and red rocks.  End point ~2m from POPFRE 15m tall, 15cm dbh, near 1m red sandstone boulder. 
Geological layer: Muav limestone Habitat type: Riparian Great Basin desert scrub Dominant species: Brickellia longifolia S. Wats., Baccharis emoryi Gray, Artemisia ludoviciana Nutt. Associated species: Juniperus osteosperma (Torr.) Little, Stephanomeria pauciflora (Torr.) A. Nels., Sporobolus flexuosus 
(Thurb. ex Vasey) Rydb., Aster species, Artemisia ludoviciana Nutt., Bromus rubens L., Muhlenbergia asperifolia (Nees & Meyen ex Trin.) Parodi, Ephedra spp., Agave utahensis Engelm., Machaeranthera spp., Equisetum ferrissii Clute (pro sp.), Oenothera spp., Encelia frutescens (Gray) Gray, Aristida spp. 
Surface water within 25 m? Surface water type: Surface rocks: limestone sandstone Landform: Drainage channel Interfluve Light exposure: open partial-shade Soil type: sand Soil moisture: dry 
Point Intercept Transect (50m) % Cover Bare Soil 66 Cobble 51 Litter (duff) 22 Artemisia ludoviciana Nutt. 2 Baccharis emoryi Gray 5 Brickellia longifolia S. Wats. 14 Sporobolus flexuosus (Thurb. ex Vasey) Rydb. 1 Stephanomeria pauciflora (Torr.) A. Nels. 3 
Daubenmire Scale Cover Data from 50m Transect 
Crews did not collect ground cover data for this transect. 
Species Name  Meters  Tree Age  Cover Scale  
Agave utahensis Engelm.  15  1 <1%  
Aristida spp.  15  2 1-5%  
Aristida spp.  25  2 1-5%  
Aristida spp.  35  1 <1%  
Aristida spp.  45  1 <1%  
Artemisia ludoviciana Nutt.  25  3 5-10%  
Artemisia ludoviciana Nutt.  35  2 1-5%  
Artemisia ludoviciana Nutt.  45  1 <1%  
Aster species  35  2 1-5%  
Aster species  35  6 50-75%  
Baccharis emoryi Gray  5  2 1-5%  
Baccharis emoryi Gray  15  2 1-5%  
Baccharis emoryi Gray  25  3 5-10%  
Brickellia longifolia S. Wats.  5  3 5-10%  
Brickellia longifolia S. Wats.  15  3 5-10%  
Brickellia longifolia S. Wats.  25  3 5-10%  
Brickellia longifolia S. Wats.  35  3 5-10%  
Brickellia longifolia S. Wats.  45  4 10-25%  
Bromus rubens L.  25  1 <1%  
Bromus rubens L.  45  2 1-5%  

Echinocereus spp.  5  2 1-5%  
Encelia frutescens (Gray) Gray  45  1 <1%  
Ephedra spp.  5  1 <1%  
Equisetum ferrissii Clute (pro sp.)  5  1 <1%  
Erioneuron pulchellum  25  1 <1%  
Juniperus osteosperma (Torr.) Little  15  2 1-5%  
Machaeranthera spp.  15  2 1-5%  
Muhlenbergia asperifolia (Nees & Meyen ex Trin.) Parodi  5  2 1-5%  
Oenothera spp.  5  1 <1%  
Purshia spp.  5  3 5-10%  
Sporobolus flexuosus (Thurb. ex Vasey) Rydb.  35  2 1-5%  
Sporobolus flexuosus (Thurb. ex Vasey) Rydb.  45  2 1-5%  
Stephanomeria pauciflora (Torr.) A. Nels.  25  2 1-5%  
Stephanomeria pauciflora (Torr.) A. Nels.  35  2 1-5%  
Stephanomeria pauciflora (Torr.) A. Nels.  45  1 <1%  

Vegetation Structure Data 
Species Name  Meters  # of Hits  Height  
Brickellia longifolia S. Wats.  5  5  0-1.0  
Baccharis emoryi Gray  25  1  0-1.0  

Soil Data
Crews did not collect soil data for this transect.

Canyon/Park  South Canyon  River mile: 31.5 R  
Transect Name:  South Canyon Transect 1  Type: Tamarisk area  
Date:  5/6/2005  Weather: Dense cloud cover ~70F, raining  
Start point:  End point:  
Easting  421084  Easting  421130  
Northing  4039457  Northing  4039471  
GPS accuracy (m)  9  GPS accuracy (m)  5  
Bearing:  79  Elevation (m):  1029  
Aspect (0-360):  76  Slope (degrees):  5  

Transect description:	Start point is on boulder on creek left just below mouth of bedrock canyon (fork on creek left). Endpoint is down canyon. From camp, head up S. Canyon Trail. Transect 1A start point is at the mouth of fork of bedrock canyon on creek left ~0.6km from where trail drops into the drainage. 
Geological layer: Supai
Habitat type: Mojave desert scrub
Dominant species: Tamarix ramosissima Ledeb., Brickellia longifolia S. Wats., Stephanomeria pauciflora (Torr.) A. Nels.
Associated species: Atriplex canescens (Pursh) Nutt., Opuntia basilaris Engelm. & Bigelow, Amaranthus albus L.,

Chenopodium album L., Achnatherum hymenoides (Roemer & J.A. Schultes) Barkworth, Stanleya pinnata (Pursh) Britt., Mirabilis multiflora (Torr.) Gray, Cryptantha spp., Stephanomeria exigua Nutt., Aster species, Sphaeralcea spp., Descurainia pinnata (Walt.) Britt., Machaeranthera pinnatifida (Hook.) Shinners, Bromus rigidus, Mentzelia spp., Phacelia crenulata Torr. ex S. Wats., Gutierrezia spp., Nicotiana obtusifolia Mertens & Galeotti, Sisymbrium altissimum L., Thymophylla pentachaeta (DC.) Small, Ephedra spp., Salsola tragus L., Bromus tectorum L., Datura wrightii Regel, melilotus spp., Muhlenbergia asperifolia (Nees & Meyen ex Trin.) Parodi, Cryptantha angustifolia (Torr.) Greene, Plagiobothrys arizonicus (Gray) Greene ex Gray, Camissonia walkeri (A. Nels.) Raven, Aristida spp., Stephanomeria pauciflora (Torr.) A. Nels., Tiquilia latior (I.M. Johnston) A. Richards., Phacelia rotundifolia Torr. ex S. Wats., Sporobolus cryptandrus (Torr.) Gray, Erodium cicutarium (L.) L'Hr. ex Ait., Loeseliastrum schottii (Torr.) Timbrook, Lepidium perfoliatum L., Allionia spp., Dasyochloa pulchella (Kunth) Willd. ex Rydb., Sisymbrium irio L., Schismus spp., Lycium spp., Gilia spp. 
Surface water within 25 m? Surface water type: pothole Surface rocks: sandstone Landform: Side slope Light exposure: open Soil type: sand Soil moisture: moist 
Point Intercept Transect (50m) % Cover Boulder 20 Cobble 10 Gravel 11 Litter (duff) 20 Sand 38 Stone 11 Aristida spp. 1 Brickellia longifolia S. Wats. 11 Bromus rubens L. 6 Bromus tectorum L. 3 Encelia frutescens (Gray) Gray var. resinosa M.E. Jones ex Blake 1 Ephedra spp. 2 Gutierrezia spp. 1 Sphaeralcea spp. 2 Stephanomeria pauciflora (Torr.) A. Nels. 6 Tamarix ramosissima Ledeb. 18 
Daubenmire Scale Cover Data from 50m Transect 
Ground Cover Category  Meters  Cover Scale  
Boulder  5  6 50-75%  
Boulder  15  5 25-50%  
Boulder  25  5 25-50%  
Boulder  35  3 5-10%  
Boulder  45  5 25-50%  
Cobble  5  4 10-25%  
Cobble  15  4 10-25%  
Cobble  25  3 5-10%  
Cobble  35  4 10-25%  

Cobble  45  3 5-10%  
Gravel  15  4 10-25%  
Gravel  25  3 5-10%  
Gravel  35  3 5-10%  
Gravel  45  4 10-25%  
Sand  5  4 10-25%  
Sand  15  4 10-25%  
Sand  25  4 10-25%  
Sand  35  7 75-100%  
Sand  45  6 50-75%  
Stone  15  4 10-25%  
Stone  25  3 5-10%  
Stone  35  3 5-10%  
Stone  45  2 1-5%  
Species Name  Meters  Tree Age  Cover Scale  
Aristida spp.  15  1 <1%  
Aster species  35  1 <1%  
Astragalus spp.  35  1 <1%  
Atriplex canescens (Pursh) Nutt.  15  2 1-5%  
Atriplex canescens (Pursh) Nutt.  25  2 1-5%  
Atriplex canescens (Pursh) Nutt.  35  1 <1%  
Atriplex spp.  45  1 <1%  
Brickellia longifolia S. Wats.  5  2 1-5%  
Brickellia longifolia S. Wats.  15  2 1-5%  
Brickellia longifolia S. Wats.  25  2 1-5%  
Brickellia longifolia S. Wats.  45  2 1-5%  
Bromus rigidus  45  1 <1%  
Bromus rubens L.  5  1 <1%  
Bromus rubens L.  15  2 1-5%  
Bromus rubens L.  25  2 1-5%  
Bromus rubens L.  35  2 1-5%  
Bromus rubens L.  45  1 <1%  
Bromus tectorum L.  5  2 1-5%  
Bromus tectorum L.  15  2 1-5%  
Bromus tectorum L.  25  2 1-5%  
Bromus tectorum L.  35  1 <1%  
Bromus tectorum L.  45  1 <1%  
Camissonia walkeri (A. Nels.) Raven  15  1 <1%  
Camissonia walkeri (A. Nels.) Raven  25  1 <1%  
Camissonia walkeri (A. Nels.) Raven  35  1 <1%  
Camissonia walkeri (A. Nels.) Raven  45  1 <1%  
Chrysothamnus spp.  15  2 1-5%  
Chrysothamnus spp.  25  2 1-5%  
Cryptantha angustifolia (Torr.) Greene  25  1 <1%  
Cryptantha angustifolia (Torr.) Greene  35  1 <1%  
Cryptobiotic soil  15  1 <1%  
Cryptobiotic soil  25  1 <1%  
Cryptobiotic soil  35  1 <1%  
Dasyochloa pulchella (Kunth) Willd. ex Rydb.  15  1 <1%  
Datura wrightii Regel  5  1 <1%  
Descurainia pinnata (Walt.) Britt.  15  2 1-5%  
Encelia frutescens (Gray) Gray var. resinosa M.E. Jones ex Blake  15  2 1-5%  
Ephedra spp.  25  1 <1%  
Ephedra spp.  45  1 <1%  

Erigeron speciosus (Lindl.) DC. var. macranthus (Nutt.) Cronq.  35  1 <1%  
Erodium cicutarium (L.) L'Hr. ex Ait.  15  1 <1%  
Erodium cicutarium (L.) L'Hr. ex Ait.  35  2 1-5%  
Gilia spp.  45  1 <1%  
Gutierrezia spp.  5  2 1-5%  
Lepidium perfoliatum L.  15  2 1-5%  
Lepidium perfoliatum L.  25  2 1-5%  
Lepidium perfoliatum L.  35  1 <1%  
Lepidium perfoliatum L.  45  1 <1%  
Lithophragma tenellum Nutt.  5  3 5-10%  
Lithophragma tenellum Nutt.  15  4 10-25%  
Lithophragma tenellum Nutt.  25  4 10-25%  
Lithophragma tenellum Nutt.  35  4 10-25%  
Lithophragma tenellum Nutt.  45  3 5-10%  
Loeseliastrum schottii (Torr.) Timbrook  45  1 <1%  
Lycium spp.  15  1 <1%  
Lycium spp.  25  1 <1%  
melilotus spp.  25  1 <1%  
melilotus spp.  45  1 <1%  
Mentzelia spp.  35  1 <1%  
Muhlenbergia asperifolia (Nees & Meyen ex Trin.) Parodi  15  1 <1%  
Nicotiana obtusifolia Mertens & Galeotti  35  1 <1%  
Opuntia basilaris Engelm. & Bigelow  25  2 1-5%  
Phacelia crenulata Torr. ex S. Wats.  15  1 <1%  
Phacelia crenulata Torr. ex S. Wats.  25  1 <1%  
Phacelia crenulata Torr. ex S. Wats.  45  1 <1%  
Phacelia rotundifolia Torr. ex S. Wats.  5  1 <1%  
Plagiobothrys arizonicus (Gray) Greene ex Gray  15  1 <1%  
Plagiobothrys arizonicus (Gray) Greene ex Gray  25  1 <1%  
Plagiobothrys arizonicus (Gray) Greene ex Gray  45  1 <1%  
Salsola tragus L.  45  1 <1%  
Schismus spp.  15  2 1-5%  
Schismus spp.  25  1 <1%  
Schismus spp.  35  1 <1%  
Schismus spp.  45  1 <1%  
Sisymbrium altissimum L.  25  1 <1%  
Sisymbrium altissimum L.  35  1 <1%  
Sisymbrium irio L.  15  2 1-5%  
Sphaeralcea grossulariifolia (Hook. & Arn.) Rydb.  25  2 1-5%  
Sphaeralcea grossulariifolia (Hook. & Arn.) Rydb.  35  2 1-5%  
Sporobolus cryptandrus (Torr.) Gray  5  1 <1%  
Sporobolus cryptandrus (Torr.) Gray  35  2 1-5%  
Sporobolus cryptandrus (Torr.) Gray  45  2 1-5%  
Stephanomeria exigua Nutt.  25  1 <1%  
Stephanomeria pauciflora (Torr.) A. Nels.  5  1 <1%  
Stephanomeria pauciflora (Torr.) A. Nels.  15  2 1-5%  
Stephanomeria pauciflora (Torr.) A. Nels.  35  3 5-10%  
Stephanomeria pauciflora (Torr.) A. Nels.  45  2 1-5%  
Tamarix ramosissima Ledeb.  5  M Mature  5 25-50%  
Tamarix ramosissima Ledeb.  25  M Mature  5 25-50%  
Tamarix ramosissima Ledeb.  35  P Sapling  4 10-25%  
Tamarix ramosissima Ledeb.  45  P Sapling  2 1-5%  
Thymophylla pentachaeta (DC.) Small  25  1 <1%  
Thymophylla pentachaeta (DC.) Small  45  1 <1%  
Tiquilia latior (I.M. Johnston) A. Richards.  25  1 <1%  
Tiquilia latior (I.M. Johnston) A. Richards.  45  1 <1%  

Vegetation Structure Data 
Species Name  Meters  # of Hits  Height  
Tamarix ramosissima Ledeb.  5  4  0-1.0  
Tamarix ramosissima Ledeb.  25  6  0-1.0  
Bromus tectorum L.  35  1  0-1.0  
Tamarix ramosissima Ledeb.  35  3  0-1.0  

Soil Data 
Meters  Probe depth (cm)  Reading 1  Reading 2  Reading 3  Average Reading  
5  0  0  0  0  0.00  
15  0  0  0  0  0.00  
25  0  0  0  0  0.00  
35  0  0.03  0  0.01  0.01  
45  0  0  0  0  0.00  

Canyon/Park  South Canyon  River mile:  31.5 R  
Transect Name:  South Canyon Transect 1  Type:  Reference  
Date:  5/6/2005  Weather:  Rainy, with spots of sun, major cloud cover  
Start point:  End point:  
Easting  421031  Easting  421053  
Northing  4039417  Northing  4039450  
GPS accuracy (m)  11  GPS accuracy (m)  13  
Bearing:  31  Elevation (m):  1043  
Aspect (0-360):  130  Slope (degrees):  8  

Transect description:	Begins less than 100m above transect 1A in stream bed on creek left. Goes through nook in large boulders.  Follows along sediment deposit on creek left.  Start is on slanted 2x2m boulder. 
Geological layer: Supai Habitat type: Great Basin desert scrub Dominant species: Ephedra spp., Bromus rubens L. Associated species: Cryptantha spp., Schismus spp., Descurainia pinnata (Walt.) Britt., Allionia incarnata L., Dasyochloa 
pulchella (Kunth) Willd. ex Rydb., Sporobolus cryptandrus (Torr.) Gray, Tiquilia latior (I.M. Johnston) 
A. Richards., Aristida spp., Thamnosma montana Torr. & Frm., Phacelia crenulata Torr. ex S. Wats., Brickellia atractyloides Gray, Gutierrezia sarothrae (Pursh) Britt. & Rusby, Sisymbrium irio L., Atriplex canescens (Pursh) Nutt., Thymophylla pentachaeta (DC.) Small, Stephanomeria pauciflora (Torr.) A. Nels., Erodium cicutarium (L.) L'Hr. ex Ait., Sisymbrium altissimum L., Sphaeralcea spp., Machaeranthera pinnatifida (Hook.) Shinners, Cryptantha muricata (Hook. & Arn.) A. Nels. & 
J.F. Macbr. var. jonesii (Gray) I.M. Johnston, Ephedra spp., Camissonia walkeri (A. Nels.) Raven, Brickellia longifolia S. Wats., Cryptantha angustifolia (Torr.) Greene, Cryptobiotic soil, Opuntia basilaris Engelm. & Bigelow, Bromus tectorum L., Lappula redowski 
Surface water within 25 m? Surface water type: pothole Surface rocks: sandstone Landform: Lower slope Light exposure: open Soil type: sand Soil moisture: dry 
Point Intercept Transect (50m) % Cover Bedrock 12 Boulder 36 Cobble 6 Gravel 8 Litter (duff) 17 Sand 44 Atriplex canescens (Pursh) Nutt. 1 Bromus rubens L. 11 Bromus tectorum L. 2 Camissonia walkeri (A. Nels.) Raven 2 Cryptantha muricata (Hook. & Arn.) A. Nels. & J.F. Macbr. var. 1 jonesii (Gray) I.M. Johnston Ephedra spp. 8 Erodium cicutarium (L.) L'Hr. ex Ait. 1 Lepidium perfoliatum L. 1 Opuntia basilaris Engelm. & Bigelow 1 Sphaeralcea spp. 3 Stephanomeria pauciflora (Torr.) A. Nels. 1 Thymophylla pentachaeta (DC.) Small 1 
Daubenmire Scale Cover Data from 50m Transect 
Ground Cover Category  Meters  Cover Scale  
Bedrock  5  5 25-50%  
Bedrock  15  5 25-50%  
Bedrock  25  6 50-75%  
Bedrock  35  6 50-75%  
Boulder  5  4 10-25%  
Boulder  15  3 5-10%  
Boulder  35  3 5-10%  
Boulder  45  4 10-25%  
Cobble  5  4 10-25%  

Cobble  15  2 1-5%  
Cobble  25  3 5-10%  
Cobble  35  2 1-5%  
Cobble  45  2 1-5%  
Gravel  15  2 1-5%  
Gravel  25  2 1-5%  
Gravel  35  1 <1%  
Gravel  45  2 1-5%  
Litter (duff)  5  1 <1%  
Litter (duff)  15  2 1-5%  
Litter (duff)  25  1 <1%  
Litter (duff)  35  1 <1%  
Litter (duff)  45  2 1-5%  
Sand  5  2 1-5%  
Sand  15  2 1-5%  
Sand  25  3 5-10%  
Sand  35  2 1-5%  
Sand  45  4 10-25%  
Stone  15  2 1-5%  
Stone  25  2 1-5%  
Stone  35  2 1-5%  
Stone  45  2 1-5%  
Species Name  Meters  Tree Age  Cover Scale  
Allionia incarnata L.  35  1 <1%  
Aristida spp.  5  1 <1%  
Aristida spp.  45  1 <1%  
Atriplex canescens (Pursh) Nutt.  5  1 <1%  
Atriplex canescens (Pursh) Nutt.  15  1 <1%  
Atriplex canescens (Pursh) Nutt.  25  1 <1%  
Atriplex canescens (Pursh) Nutt.  35  1 <1%  
Atriplex canescens (Pursh) Nutt.  45  1 <1%  
Brickellia atractyloides Gray  45  1 <1%  
Brickellia longifolia S. Wats.  5  3 5-10%  
Brickellia longifolia S. Wats.  15  1 <1%  
Bromus rubens L.  5  1 <1%  
Bromus rubens L.  15  1 <1%  
Bromus rubens L.  25  2 1-5%  
Bromus rubens L.  35  1 <1%  
Bromus rubens L.  45  2 1-5%  
Bromus tectorum L.  5  1 <1%  
Bromus tectorum L.  15  1 <1%  
Bromus tectorum L.  35  1 <1%  
Bromus tectorum L.  45  1 <1%  
Camissonia walkeri (A. Nels.) Raven  15  1 <1%  
Cryptantha angustifolia (Torr.) Greene  45  1 <1%  
Cryptantha spp.  45  1 <1%  
Cryptobiotic soil  25  2 1-5%  
Cryptobiotic soil  35  1 <1%  
Cryptobiotic soil  45  2 1-5%  
Dasyochloa pulchella (Kunth) Willd. ex Rydb.  35  1 <1%  
Dasyochloa pulchella (Kunth) Willd. ex Rydb.  45  1 <1%  
Descurainia pinnata (Walt.) Britt.  15  1 <1%  

Descurainia pinnata (Walt.) Britt.  45  2 1-5%  
Ephedra spp.  15  1 <1%  
Ephedra spp.  25  1 <1%  
Ephedra spp.  35  2 1-5%  
Ephedra spp.  45  1 <1%  
Erodium cicutarium (L.) L'Hr. ex Ait.  45  1 <1%  
Gutierrezia sarothrae (Pursh) Britt. & Rusby  25  1 <1%  
Gutierrezia sarothrae (Pursh) Britt. & Rusby  35  1 <1%  
Lepidium spp.  25  1 <1%  
Lepidium spp.  35  1 <1%  
Machaeranthera pinnatifida (Hook.) Shinners  35  2 1-5%  
Machaeranthera pinnatifida (Hook.) Shinners  45  1 <1%  
Opuntia basilaris Engelm. & Bigelow  45  1 <1%  
Phacelia crenulata Torr. ex S. Wats.  25  1 <1%  
Phacelia crenulata Torr. ex S. Wats.  35  1 <1%  
Phacelia crenulata Torr. ex S. Wats.  45  1 <1%  
Sisymbrium irio L.  15  1 <1%  
Sphaeralcea spp.  5  1 <1%  
Sphaeralcea spp.  15  1 <1%  
Sphaeralcea spp.  45  2 1-5%  
Sporobolus cryptandrus (Torr.) Gray  15  1 <1%  
Sporobolus cryptandrus (Torr.) Gray  25  1 <1%  
Sporobolus cryptandrus (Torr.) Gray  35  1 <1%  
Sporobolus cryptandrus (Torr.) Gray  45  1 <1%  
Stephanomeria pauciflora (Torr.) A. Nels.  5  1 <1%  
Stephanomeria pauciflora (Torr.) A. Nels.  15  1 <1%  
Thamnosma montana Torr. & Frm.  5  2 1-5%  
Thymophylla pentachaeta (DC.) Small  25  1 <1%  
Thymophylla pentachaeta (DC.) Small  35  1 <1%  
Thymophylla pentachaeta (DC.) Small  45  2 1-5%  
Tiquilia latior (I.M. Johnston) A. Richards.  5  1 <1%  
Tiquilia latior (I.M. Johnston) A. Richards.  25  1 <1%  
Tiquilia latior (I.M. Johnston) A. Richards.  35  1 <1%  
Tiquilia latior (I.M. Johnston) A. Richards.  45  1 <1%  

Vegetation Structure Data 
type  Species Name  Meters  # of Hits  Height  
Reference  Stephanomeria pauciflora (Torr.) A. Nels.  5  7  0-1.0  
Reference  Bromus rubens L.  15  2  0-1.0  
Reference  Plagiobothrys arizonicus (Gray) Greene ex Gray  15  2  0-1.0  
Reference  Bromus rubens L.  45  1  0-1.0  
Reference  Ephedra spp.  45  1  0-1.0  

Soil Data 
Meters  Probe depth (cm)  Reading 1  Reading 2  Reading 3  Average Reading  
5  0  0  0  0  0.00  
15  0  0  0.01  0  0.00  
25  0  0  0  0  0.00  
35  0  0  0  0  0.00  
45  0  0  0  0  0.00  

Canyon/Park  South Canyon  River mile: 31.5 R  
Transect Name:  South Canyon Transect 2  Type: Tamarisk area  
Date:  5/6/2005  Weather: 75% clouds with rain intermittent, 65F  
Start point:  End point:  
Easting  419769  Easting  419811  
Northing  4038117  Northing  4038126  
GPS accuracy (m)  9  GPS accuracy (m)  5  
Bearing:  85  Elevation (m):  1203  
Aspect (0-360):  170  Slope (degrees):  12  

Transect description:	Less than 100m past 25m boulder on creek left.  Just opposite 8m tall sheer supai face - look for 4x7m pock-marked supai boulder. 
Geological layer:	Supai 
Habitat type:	Great Basin desert scrub 
Dominant species:	Fallugia paradoxa (D. Don) Endl. ex Torr., Stanleya pinnata (Pursh) Britt., Brickellia longifolia S. Wats., 
Tamarix ramosissima Ledeb. 
Associated species:	Bromus tectorum L., Sisymbrium altissimum L., Aristida spp., Stephanomeria pauciflora (Torr.) A. Nels., Gilia spp., Pectocarya recurvata I.M. Johnston, Streptanthella longirostris (S. Wats.) Rydb., Tiquilia latior (I.M. Johnston) A. Richards., Erigeron spp., Schismus spp., Elymus elymoides (Raf.) Swezey, Gilia polycladon, Gutierrezia spp., Salsola tragus L., Astragalus spp., Achnatherum hymenoides (Roemer & J.A. Schultes) Barkworth, Atriplex canescens (Pursh) Nutt., Hesperostipa comata (Trin. & Rupr.) Barkworth ssp. comata, Muhlenbergia asperifolia (Nees & Meyen ex Trin.) Parodi, Lupinus spp., Artemisia ludoviciana Nutt., Sphaeralcea grossulariifolia (Hook. & Arn.) Rydb., Oenothera cavernae Munz, Bromus rubens L., Erodium cicutarium (L.) L'Hr. ex Ait., Melilotus spp. 
Surface water within 25 m? Surface water type:	Surface rocks: sandstone 
Landform: Lower slope  Light exposure: open  
Soil type: sand  Soil moisture:  dry  
Point Intercept Transect (50m)  % Cover  
Bedrock  2  
Boulder  30  
Cobble  7  
Gravel  13  
Litter (duff)  16  
Sand  44  
Stone  7  
Brickellia longifolia S. Wats.  7  
Bromus rubens L.  1  
Bromus tectorum L.  15  
Sisymbrium altissimum L.  1  
Tamarix ramosissima Ledeb.  40  

Daubenmire Scale Cover Data from 50m Transect 
Ground Cover Category  Meters  Cover Scale  
Boulder  5  5 25-50%  
Boulder  15  2 1-5%  
Boulder  25  5 25-50%  
Boulder  35  3 5-10%  
Boulder  45  2 1-5%  
Cobble  15  3 5-10%  
Cobble  25  2 1-5%  
Cobble  35  4 10-25%  
Cobble  45  2 1-5%  
Gravel  5  1 <1%  
Gravel  15  2 1-5%  
Gravel  25  2 1-5%  
Gravel  35  4 10-25%  
Gravel  45  3 5-10%  
Litter (duff)  5  2 1-5%  

Litter (duff)  15  5 25-50%  
Litter (duff)  25  2 1-5%  
Litter (duff)  35  1 <1%  
Litter (duff)  45  2 1-5%  
Sand  5  4 10-25%  
Sand  15  3 5-10%  
Sand  25  6 50-75%  
Sand  35  5 25-50%  
Sand  45  4 10-25%  
Stone  5  2 1-5%  
Stone  15  4 10-25%  
Stone  25  1 <1%  
Stone  35  3 5-10%  
Stone  45  1 <1%  
Species Name  Meters  Tree Age  Cover Scale  
Achnatherum hymenoides (Roemer & J.A. Schultes) Barkworth  5  1 <1%  
Achnatherum hymenoides (Roemer & J.A. Schultes) Barkworth  25  1 <1%  
Achnatherum hymenoides (Roemer & J.A. Schultes) Barkworth  35  1 <1%  
Achnatherum hymenoides (Roemer & J.A. Schultes) Barkworth  45  1 <1%  
Artemisia ludoviciana Nutt.  45  1 <1%  
Astragalus spp.  35  1 <1%  
Atriplex canescens (Pursh) Nutt.  45  1 <1%  
Brickellia longifolia S. Wats.  5  4 10-25%  
Brickellia longifolia S. Wats.  15  1 <1%  
Brickellia longifolia S. Wats.  45  1 <1%  
Bromus rubens L.  5  1 <1%  
Bromus rubens L.  15  2 1-5%  
Bromus rubens L.  25  1 <1%  
Bromus rubens L.  35  1 <1%  
Bromus rubens L.  45  2 1-5%  
Bromus tectorum L.  5  2 1-5%  
Bromus tectorum L.  15  5 25-50%  
Bromus tectorum L.  25  2 1-5%  
Bromus tectorum L.  35  2 1-5%  
Bromus tectorum L.  45  4 10-25%  
Elymus elymoides (Raf.) Swezey  25  1 <1%  
Elymus elymoides (Raf.) Swezey  35  1 <1%  
Erigeron spp.  45  1 <1%  
Erodium cicutarium (L.) L'Hr. ex Ait.  15  1 <1%  
Erodium cicutarium (L.) L'Hr. ex Ait.  35  1 <1%  
Fallugia paradoxa (D. Don) Endl. ex Torr.  5  2 1-5%  
Fallugia paradoxa (D. Don) Endl. ex Torr.  25  3 5-10%  
Fallugia paradoxa (D. Don) Endl. ex Torr.  35  2 1-5%  
Gilia spp.  35  1 <1%  
Gutierrezia spp.  35  1 <1%  
Gutierrezia spp.  45  1 <1%  
Hesperostipa comata (Trin. & Rupr.) Barkworth ssp. comata  5  1 <1%  
Hesperostipa comata (Trin. & Rupr.) Barkworth ssp. comata  35  1 <1%  
Lupinus spp.  5  1 <1%  
Lupinus spp.  15  1 <1%  
Lupinus spp.  35  1 <1%  
melilotus spp.  15  1 <1%  
melilotus spp.  25  1 <1%  
melilotus spp.  35  1 <1%  

melilotus spp.  45  1 <1%  
Muhlenbergia asperifolia (Nees & Meyen ex Trin.) Parodi  5  1 <1%  
Oenothera cavernae Munz  35  1 <1%  
Pectocarya recurvata I.M. Johnston  5  1 <1%  
Salsola tragus L.  5  1 <1%  
Schismus spp.  45  1 <1%  
Sisymbrium altissimum L.  5  1 <1%  
Sisymbrium altissimum L.  15  1 <1%  
Sisymbrium altissimum L.  25  1 <1%  
Sisymbrium altissimum L.  45  1 <1%  
Sphaeralcea grossulariifolia (Hook. & Arn.) Rydb.  35  1 <1%  
Stanleya pinnata (Pursh) Britt.  25  2 1-5%  
Stanleya pinnata (Pursh) Britt.  35  2 1-5%  
Stanleya pinnata (Pursh) Britt.  45  1 <1%  
Stephanomeria pauciflora (Torr.) A. Nels.  35  2 1-5%  
Streptanthella longirostris (S. Wats.) Rydb.  35  1 <1%  
Tamarix ramosissima Ledeb.  15  M Mature  5 25-50%  
Tamarix ramosissima Ledeb.  25  M Mature  5 25-50%  
Tamarix ramosissima Ledeb.  35  P Sapling  1 <1%  
Tamarix ramosissima Ledeb.  45  P Sapling  5 25-50%  
Tiquilia latior (I.M. Johnston) A. Richards.  15  1 <1%  
Tiquilia latior (I.M. Johnston) A. Richards.  45  1 <1%  

Vegetation Structure Data 
Species Name  Meters  # of Hits  Height  
Brickellia longifolia S. Wats.  5  3  0-1.0  
Tamarix ramosissima Ledeb.  15  1  1-2  
Tamarix ramosissima Ledeb.  15  3  2-3  
Tamarix ramosissima Ledeb.  15  6  0-1.0  
Tamarix ramosissima Ledeb.  25  9  1-2  
Tamarix ramosissima Ledeb.  25  13  0-1.0  
Tamarix ramosissima Ledeb.  45  3  1-2  

Soil Data 
Meters  Probe depth (cm)  Reading 1  Reading 2  Reading 3  Average Reading  
5  0  0  0  0  0.00  
15  0  0  0.01  0  0.00  
25  0  0  0  0  0.00  
35  0  0  0  0  0.00  
45  8  0.63  0.64  0.65  0,64  

Canyon/Park  South Canyon  River mile:  31.5 R  
Transect Name:  South Canyon Transect 2  Type:  Reference  
Date:  5/6/2005  Weather:  Sunny, some clouds with intermittent rain  
Start point:  End point:  
Easting  419726  Easting  419766  
Northing  4038100  Northing  4038109  
GPS accuracy (m)  7  GPS accuracy (m)  6  
Bearing:  88  Elevation (m):  1164  
Aspect (0-360):  350  Slope (degrees):  5  

Transect description:	Transect is on creek right near T2A. Start point on NW side of 8x6m boulder within 1m of Ptelia directly on top of roundish smaller boulder.  End point heads toward Ptelia nestled among delivery truck sized boulders. 
Geological layer: Supai Habitat type: Great Basin desert scrub Dominant species: Bromus rubens L., Bromus tectorum L., Ephedra spp., Fallugia paradoxa (D. Don) Endl. ex Torr., Atriplex
 canescens (Pursh) Nutt. 
Associated species:	Cirsium neomexicanum Gray, Moss spp., Stanleya pinnata (Pursh) Britt., Descurainia pinnata (Walt.) Britt., Lappula redowski, 
Cryptantha spp., Mirabilis multiflora (Torr.) Gray, Brickellia longifolia S. Wats., Opuntia polyacantha, Tiquilia latior (I.M. 
Johnston) A. Richards., Sporobolus cryptandrus (Torr.) Gray, Sporobolus cryptandrus (Torr.) Gray 
Surface water within 25 m? Surface water type: seep Surface rocks: limestone Landform: Lower slope Light exposure: open partial-shade Soil type: sand Soil moisture: dry 
Point Intercept Transect (50m)	% Cover 
0 Boulder 21 Litter (duff) 60 Sand 76 Woody debris structure 1 Atriplex canescens (Pursh) Nutt. 13 Bromus rubens L. 28 Bromus tectorum L. 49 Descurainia pinnata (Walt.) Britt. 1 Ephedra spp. 5 Fallugia paradoxa (D. Don) Endl. ex Torr. 27 Lappula redowski 2 Mirabilis multiflora (Torr.) Gray 1 Stanleya pinnata (Pursh) Britt. 6 
Daubenmire Scale Cover Data from 50m Transect 
Ground Cover Category  Meters  Cover Scale  
Boulder  5  6 50-75%  
Boulder  15  6 50-75%  
Boulder  35  2 1-5%  
Boulder  45  2 1-5%  
Coarse woody debris  25  1 <1%  
Coarse woody debris  35  1 <1%  
Cobble  35  1 <1%  
Cobble  45  2 1-5%  
Gravel  35  1 <1%  
Gravel  45  2 1-5%  
Litter (duff)  5  2 1-5%  
Litter (duff)  15  2 1-5%  
Litter (duff)  25  1 <1%  
Litter (duff)  45  2 1-5%  
Sand  5  2 1-5%  
Sand  25  1 <1%  

Sand  35  2 1-5%  
Sand  45  3 5-10%  
Stone  5  1 <1%  
Stone  35  1 <1%  
Species Name  Meters  Tree Age  Cover Scale  
Aristida spp.  15  1 <1%  
Atriplex canescens (Pursh) Nutt.  25  4 10-25%  
Atriplex canescens (Pursh) Nutt.  35  3 5-10%  
Atriplex canescens (Pursh) Nutt.  45  1 <1%  
Brickellia longifolia S. Wats.  45  1 <1%  
Bromus rubens L.  5  3 5-10%  
Bromus rubens L.  15  2 1-5%  
Bromus rubens L.  25  3 5-10%  
Bromus rubens L.  35  3 5-10%  
Bromus rubens L.  45  2 1-5%  
Bromus tectorum L.  5  3 5-10%  
Bromus tectorum L.  15  2 1-5%  
Bromus tectorum L.  25  3 5-10%  
Bromus tectorum L.  35  3 5-10%  
Bromus tectorum L.  45  6 50-75%  
Cirsium neomexicanum Gray  25  1 <1%  
Cryptantha spp.  15  1 <1%  
Ephedra spp.  5  4 10-25%  
Ephedra spp.  35  2 1-5%  
Ephedra spp.  45  1 <1%  
Fallugia paradoxa (D. Don) Endl. ex Torr.  15  5 25-50%  
Fallugia paradoxa (D. Don) Endl. ex Torr.  25  5 25-50%  
Fallugia paradoxa (D. Don) Endl. ex Torr.  45  4 10-25%  
Lappula redowski  25  1 <1%  
Mirabilis multiflora (Torr.) Gray  35  2 1-5%  
Opuntia polyacantha Haw.  15  1 <1%  
Sisymbrium altissimum L.  45  1 <1%  
Sporobolus cryptandrus (Torr.) Gray  35  1 <1%  
Stanleya pinnata (Pursh) Britt.  5  1 <1%  
Stanleya pinnata (Pursh) Britt.  25  1 <1%  
Stanleya pinnata (Pursh) Britt.  35  1 <1%  
Stanleya pinnata (Pursh) Britt.  45  2 1-5%  
Tiquilia latior (I.M. Johnston) A. Richards.  35  1 <1%  

Vegetation Structure Data 
Species Name  Meters  # of Hits  Height  
Fallugia paradoxa (D. Don) Endl. ex Torr.  15  2  1-2  
Fallugia paradoxa (D. Don) Endl. ex Torr.  15  6  0-1.0  
Bromus tectorum L.  25  3  0-1.0  
Fallugia paradoxa (D. Don) Endl. ex Torr.  25  3  0-1.0  
Bromus tectorum L.  35  8  0-1.0  
Ephedra spp.  35  6  0-1.0  
Bromus tectorum L.  45  2  0-1.0  
Fallugia paradoxa (D. Don) Endl. ex Torr.  45  10  0-1.0  

Soil Data Crews did not collect soil data for this transect. 
Appendix B -63 
Canyon/Park  Trail Canyon River mile: 219 R Transect Name: Trail Canyon Transect 1 Type: Tamarisk area Date: 5/18/2005 Weather: Sunny, high clouds, 90F Start point: End point: Easting 289295 Easting 289334 Northing 3968587 Northing 3968567 GPS accuracy (m) 2 GPS accuracy (m) 7 Bearing: 102 Elevation (m): 465 Aspect (0-360): 193 Slope (degrees): 6 Transect description: Transect is ~850m from mouth of canyon on creek left, about 1m from creek and ~8m down canyon from 
1m tall conglomerate pourover.  Transect is ~1m above stream on bench. 
Geological layer: Zoroaster granite and tapeats Habitat type: Riparian Mojave desert scrub Dominant species: Pluchea sericea (Nutt.) Coville, Tamarix ramosissima Ledeb., Baccharis salicifolia (Ruiz & Pavn) Pers., 
Acacia greggii Gray 
Associated species:	Cryptantha spp., Gutierrezia sarothrae (Pursh) Britt. & Rusby, Cryptantha pterocarya (Torr.) Greene, Cryptobiotic soil, Atriplex canescens (Pursh) Nutt., Isocoma acradenia (Greene) Greene, Sporobolus cryptandrus (Torr.) Gray, Polypogon monspeliensis (L.) Desf., Sphaeralcea spp., Porophyllum gracile Benth., Bromus rubens L., Encelia farinosa Gray ex Torr., Aristida spp., Draba cuneifolia Nutt. ex Torr. & Gray, Sphaeralcea grossulariifolia (Hook. & Arn.) Rydb., Pleurocoronis pluriseta (Gray) King & H.E. Robins., Sporobolus spp., Vulpia octoflora, Prosopis glandulosa Torr., Sonchus asper (L.) Hill, Plantago patagonica Jacq., Descurainia pinnata (Walt.) Britt., Ephedra spp., Baccharis sarothroides Gray, Muhlenbergia asperifolia (Nees & Meyen ex Trin.) Parodi 
Surface water within 25 m? Surface water type: stream Surface rocks: granite Landform: Lower slope Drainage channel Light exposure: partial-shade Soil type: sandy loam Soil moisture: dry 
Point Intercept Transect (50m) % Cover Bedrock 2 Coarse woody debris 5 Cobble 12 Gravel 42 Litter (duff) 76 Sand 10 Stone 1 Acacia greggii Gray 4 Aristida spp. 4 Baccharis salicifolia (Ruiz & Pavn) Pers. 20 Baccharis spp. 2 Bromus rubens L. 19 Cryptantha spp. 1 Draba cuneifolia Nutt. ex Torr. & Gray 2 Encelia farinosa Gray ex Torr. 3 Muhlenbergia asperifolia (Nees & Meyen ex Trin.) Parodi 14 Polypogon monspeliensis (L.) Desf. 1 Sonchus asper (L.) Hill 1 Sporobolus contractus A.S. Hitchc. 1 Sporobolus cryptandrus (Torr.) Gray 1 Tamarix ramosissima Ledeb. 56 Vulpia microstachys 8 Vulpia octoflora 9 
Daubenmire Scale Cover Data from 50m Transect 
Ground Cover Category  Meters  Cover Scale  
Bedrock  25  2 1-5%  
Bedrock  35  1 <1%  
Bedrock  45  3 5-10%  
Boulder  5  2 1-5%  
Boulder  15  1 <1%  
Coarse woody debris  15  2 1-5%  
Coarse woody debris  25  2 1-5%  

Coarse woody debris  35  1 <1%  
Coarse woody debris  45  2 1-5%  
Cobble  5  2 1-5%  
Cobble  15  4 10-25%  
Cobble  25  4 10-25%  
Cobble  35  4 10-25%  
Cobble  45  4 10-25%  
Gravel  5  4 10-25%  
Gravel  15  4 10-25%  
Gravel  25  5 25-50%  
Gravel  35  5 25-50%  
Gravel  45  5 25-50%  
Litter (duff)  5  4 10-25%  
Litter (duff)  15  4 10-25%  
Litter (duff)  25  5 25-50%  
Litter (duff)  35  4 10-25%  
Litter (duff)  45  4 10-25%  
Sand  5  4 10-25%  
Sand  15  4 10-25%  
Sand  25  2 1-5%  
Sand  35  2 1-5%  
Sand  45  4 10-25%  
Stone  5  1 <1%  
Stone  15  2 1-5%  
Stone  25  2 1-5%  
Stone  35  2 1-5%  
Stone  45  2 1-5%  
Species Name  Meters  Tree Age  Cover Scale  
Acacia greggii Gray  5  P Sapling  2 1-5%  
Acacia greggii Gray  15  P Sapling  2 1-5%  
Aristida spp.  5  1 <1%  
Aristida spp.  15  1 <1%  
Aristida spp.  25  1 <1%  
Aristida spp.  35  2 1-5%  
Aristida spp.  45  1 <1%  
Artemisia ludoviciana Nutt.  45  1 <1%  
Baccharis salicifolia (Ruiz & Pavn) Pers.  5  1 <1%  
Baccharis salicifolia (Ruiz & Pavn) Pers.  15  4 10-25%  
Baccharis salicifolia (Ruiz & Pavn) Pers.  25  3 5-10%  
Baccharis salicifolia (Ruiz & Pavn) Pers.  35  2 1-5%  
Baccharis sarothroides Gray  5  2 1-5%  
Brickellia longifolia S. Wats.  45  1 <1%  
Bromus rubens L.  5  4 10-25%  
Bromus rubens L.  25  3 5-10%  
Bromus rubens L.  35  1 <1%  
Bromus rubens L.  45  2 1-5%  
Cryptantha maritima (Greene) Greene  25  1 <1%  
Cryptantha pterocarya (Torr.) Greene  15  1 <1%  
Cryptantha spp.  5  1 <1%  
Cryptantha spp.  15  1 <1%  

Cryptantha spp.  25  2 1-5%  
Cryptantha spp.  35  1 <1%  
Cryptantha spp.  45  1 <1%  
Cryptobiotic soil  5  4 10-25%  
Cryptobiotic soil  15  2 1-5%  
Cynodon dactylon (L.) Pers.  5  2 1-5%  
Cynodon dactylon (L.) Pers.  15  2 1-5%  
Cynodon dactylon (L.) Pers.  35  5 25-50%  
Cynodon dactylon (L.) Pers.  45  1 <1%  
Dasyochloa pulchella (Kunth) Willd. ex Rydb.  45  1 <1%  
Descurainia pinnata (Walt.) Britt.  5  1 <1%  
Descurainia pinnata (Walt.) Britt.  25  1 <1%  
Draba cuneifolia Nutt. ex Torr. & Gray  25  1 <1%  
Draba cuneifolia Nutt. ex Torr. & Gray  35  1 <1%  
Draba cuneifolia Nutt. ex Torr. & Gray  45  1 <1%  
Encelia farinosa Gray ex Torr.  5  2 1-5%  
Encelia farinosa Gray ex Torr.  15  3 5-10%  
Encelia farinosa Gray ex Torr.  25  2 1-5%  
Encelia farinosa Gray ex Torr.  35  3 5-10%  
Encelia farinosa Gray ex Torr.  45  2 1-5%  
Eucnide urens (Parry ex Gray) Parry  45  2 1-5%  
Hedeoma spp.  45  1 <1%  
Isocoma acradenia (Greene) Greene  5  2 1-5%  
Isocoma acradenia (Greene) Greene  15  1 <1%  
Lepidium lasiocarpum Nutt. var. lasiocarpum  5  1 <1%  
Lepidium lasiocarpum Nutt. var. lasiocarpum  35  1 <1%  
Lepidium lasiocarpum Nutt. var. lasiocarpum  45  1 <1%  
Linanthus bigelovii (Gray) Greene  25  1 <1%  
Linanthus bigelovii (Gray) Greene  45  1 <1%  
Linum lewisii Pursh  45  1 <1%  
Machaeranthera pinnatifida (Hook.) Shinners  45  1 <1%  
Nemacladus glanduliferus Jepson  25  1 <1%  
Nemacladus glanduliferus Jepson  45  1 <1%  
Nicotiana obtusifolia Mertens & Galeotti var. obtusifolia  25  1 <1%  
Oenothera caespitosa Nutt.  5  1 <1%  
Oenothera caespitosa Nutt.  25  1 <1%  
Oenothera caespitosa Nutt.  45  1 <1%  
Plantago patagonica Jacq.  5  1 <1%  
Pleurocoronis pluriseta (Gray) King & H.E. Robins.  35  1 <1%  
Pluchea sericea (Nutt.) Coville  25  2 1-5%  
Pluchea sericea (Nutt.) Coville  35  4 10-25%  
Pluchea sericea (Nutt.) Coville  45  3 5-10%  
Poa bigelovii Vasey & Scribn.  5  1 <1%  
Poa bigelovii Vasey & Scribn.  15  1 <1%  
Poa bigelovii Vasey & Scribn.  25  1 <1%  
Poa bigelovii Vasey & Scribn.  35  1 <1%  
Poa bigelovii Vasey & Scribn.  45  2 1-5%  
Polypogon monspeliensis (L.) Desf.  5  1 <1%  
Polypogon monspeliensis (L.) Desf.  15  1 <1%  
Polypogon monspeliensis (L.) Desf.  25  1 <1%  
Polypogon monspeliensis (L.) Desf.  35  1 <1%  
Polypogon monspeliensis (L.) Desf.  45  1 <1%  
Porophyllum gracile Benth.  35  2 1-5%  
Porophyllum gracile Benth.  45  1 <1%  
Prosopis glandulosa Torr.  5  M Mature  5 25-50%  
Prosopis glandulosa Torr.  15  M Mature  2 1-5%  
Silene antirrhina L.  35  1 <1%  

Silene antirrhina L.  45  1 <1%  
Sonchus asper (L.) Hill  5  1 <1%  
Sonchus asper (L.) Hill  15  1 <1%  
Sonchus asper (L.) Hill  25  1 <1%  
Sonchus asper (L.) Hill  35  1 <1%  
Sonchus asper (L.) Hill  45  1 <1%  
Sphaeralcea spp.  25  1 <1%  
Sporobolus spp.  5  3 5-10%  
Sporobolus spp.  15  2 1-5%  
Sporobolus spp.  25  1 <1%  
Stephanomeria exigua Nutt.  25  1 <1%  
Stylocline micropoides Gray  35  1 <1%  
Stylocline micropoides Gray  45  1 <1%  
Tamarix ramosissima Ledeb.  5  5 25-50%  
Tamarix ramosissima Ledeb.  15  5 25-50%  
Tamarix ramosissima Ledeb.  25  5 25-50%  
Tamarix ramosissima Ledeb.  35  M Mature  4 10-25%  
Tamarix ramosissima Ledeb.  45  M Mature  5 25-50%  

Vegetation Structure Data 
Species Name  Meters  # of Hits  Height  
Sporobolus cryptandrus (Torr.) Gray  5  1  0-1.0  
Baccharis salicifolia (Ruiz & Pavn) Pers.  15  1  0-1.0  
Tamarix ramosissima Ledeb.  15  5  0-1.0  
Tamarix ramosissima Ledeb.  25  2  2-3  
Tamarix ramosissima Ledeb.  25  4  0-1.0  
Cryptantha spp.  35  5  0-1.0  
Muhlenbergia asperifolia (Nees & Meyen ex Trin.) Parodi  35  3  0-1.0  
Tamarix ramosissima Ledeb.  35  2  0-1.0  
Tamarix ramosissima Ledeb.  45  5  1-2  

Soil Data 
Meters  Probe depth (cm)  Reading 1  Reading 2  Reading 3  Average Reading  
5  1  0  0  0  0.00  
15  2  0.01  0.03  0.02  0.02  
25  1.5  0.01  0.02  0.03  0.02  
35  1  0.01  0.05  0.03  0.03  
45  3.5  0.01  0.01  0.01  0.01  

Canyon/Park  Trail Canyon  River mile: 219 R
Transect Name: Trail Canyon Transect 1 Type: Reference
Date: 5/18/2005 Weather: Clear, warm with high cirrus clouds
Start point: End point:
Easting 289222 Easting 289225
Northing 3968621 Northing 3968610
GPS accuracy (m) 8 GPS accuracy (m) 25
Bearing: 157 Elevation (m): 536
Aspect (0-360): 236 Slope (degrees): 5
Transect description: Transect is ~983m upstream from mouth of trail canyon on creek left, near first dense BACSAL area. When

hiking up canyon, forge through two granite slickrock waterfalls. Drainage channel widens to ~25m in transect area. 
Geological layer: Zoroaster granite
Habitat type: Riparian
Dominant species: Baccharis salicifolia (Ruiz & Pavn) Pers., Isocoma acradenia (Greene) Greene
Associated species: Tamarix ramosissima Ledeb., Prosopis glandulosa Torr., Typha angustifolia L., Loeseliastrum schottii

(Torr.) Timbrook, Gutierrezia sarothrae (Pursh) Britt. & Rusby, Daucus spp., Rorippa nasturtium-aquaticum (L.) Hayek, Maurandya antirrhiniflora, Poa bigelovii Vasey & Scribn., Isocoma acradenia (Greene) Greene, Allionia incarnata L., Encelia farinosa Gray ex Torr., Linanthus bigelovii (Gray) Greene, Eriogonum spp., Stylocline micropoides Gray, Bromus tectorum L., Mimulus guttatus DC., Descurainia pinnata (Walt.) Britt., Penstemon spp., Polypogon monspeliensis (L.) Desf., Astragalus nuttallianus DC., Baccharis salicifolia (Ruiz & Pavn) Pers., Sonchus asper (L.) Hill, Nemacladus glanduliferus Jepson, Camissonia spp., Artemisia ludoviciana Nutt., Hedeoma oblongifolia (Gray) Heller, Gnaphalium chilense, Datura wrightii Regel, Parietaria hespera Hinton, Cynodon dactylon (L.) Pers., Draba cuneifolia Nutt. ex Torr. & Gray, Vulpia octoflora, Bromus japonicus Thunb. ex Murr., Silene antirrhina L., Cryptantha pterocarya (Torr.) Greene, Conyza canadensis (L.) Cronq., Acacia greggii Gray, Funastrum cynanchoides (Dcne.) Schlechter ssp. cynanchoides, Cirsium spp., Sphaeralcea grossulariifolia (Hook. & Arn.) Rydb., Mirabilis bigelovii Gray, Galium spp., Erigeron divergens Torr. & Gray, Lepidium lasiocarpum Nutt. var. lasiocarpum, Sporobolus cryptandrus (Torr.) Gray, Cryptantha spp., Plantago patagonica Jacq., Trixis californica Kellogg, Aristida spp., Erigeron spp., Pluchea sericea (Nutt.) Coville, Senna covesii (Gray) Irwin & Barneby, Linum lewisii Pursh, Oenothera caespitosa Nutt., Juncus torreyi Coville, Brickellia longifolia S. Wats., Bromus rubens L., Bebbia juncea (Benth.) Greene var. aspera Greene 
Surface water within 25 m? Surface water type: stream Surface rocks: granite
Landform: Drainage channel Light exposure: open
Soil type: loamy sand Soil moisture: moist

Point Intercept Transect (50m) % Cover
Boulder 10
Coarse woody debris 9
Cobble 4
Gravel 38
Litter (duff) 37
Sand 55
Stone 2
Aristida spp. 1
Baccharis salicifolia (Ruiz & Pavn) Pers. 27
Bebbia juncea (Benth.) Greene var. aspera Greene 6
Bromus rubens L. 2
Funastrum cynanchoides (Dcne.) Schlechter 1
Gutierrezia sarothrae (Pursh) Britt. & Rusby 2
Isocoma acradenia (Greene) Greene 11
Muhlenbergia asperifolia (Nees & Meyen ex Trin.) Parodi 3
Polypogon monspeliensis (L.) Desf. 1
Tamarix ramosissima Ledeb. 4

Daubenmire Scale Cover Data from 50m Transect 
Ground Cover Category  Meters  Cover Scale  
Boulder  5  4 10-25%  
Boulder  35  3 5-10%  
Boulder  45  4 10-25%  
Coarse woody debris  5  3 5-10%  
Coarse woody debris  15  1 <1%  
Coarse woody debris  35  1 <1%  

Cobble  5  4 10-25%  
Cobble  15  4 10-25%  
Cobble  25  3 5-10%  
Cobble  35  4 10-25%  
Cobble  45  3 5-10%  
Gravel  5  3 5-10%  
Gravel  15  5 25-50%  
Gravel  25  5 25-50%  
Gravel  35  6 50-75%  
Gravel  45  5 25-50%  
Litter (duff)  5  5 25-50%  
Litter (duff)  15  2 1-5%  
Litter (duff)  25  2 1-5%  
Litter (duff)  35  3 5-10%  
Sand  5  2 1-5%  
Sand  15  4 10-25%  
Sand  25  5 25-50%  
Sand  35  4 10-25%  
Sand  45  5 25-50%  
Stone  5  4 10-25%  
Stone  15  2 1-5%  
Stone  25  2 1-5%  
Stone  35  3 5-10%  
Stone  45  3 5-10%  
Woody debris structure  25  1 <1%  
Species Name  Meters  Tree Age  Cover Scale  
Acacia greggii Gray  5  S Seedling  1 <1%  
Acacia greggii Gray  25  1 <1%  
Allionia incarnata L.  5  1 <1%  
Aristida spp.  5  1 <1%  
Aristida spp.  15  1 <1%  
Aristida spp.  35  1 <1%  
Artemisia ludoviciana Nutt.  5  1 <1%  
Artemisia ludoviciana Nutt.  25  1 <1%  
Baccharis salicifolia (Ruiz & Pavn) Pers.  5  4 10-25%  
Baccharis salicifolia (Ruiz & Pavn) Pers.  15  5 25-50%  
Baccharis salicifolia (Ruiz & Pavn) Pers.  25  5 25-50%  
Baccharis salicifolia (Ruiz & Pavn) Pers.  35  4 10-25%  
Baccharis salicifolia (Ruiz & Pavn) Pers.  45  4 10-25%  
Bebbia juncea (Benth.) Greene var. aspera Greene  35  1 <1%  
Brickellia longifolia S. Wats.  35  2 1-5%  
Bromus japonicus Thunb. ex Murr.  5  1 <1%  
Bromus japonicus Thunb. ex Murr.  45  1 <1%  
Bromus rubens L.  5  2 1-5%  
Bromus rubens L.  15  2 1-5%  
Bromus rubens L.  25  2 1-5%  
Bromus rubens L.  35  2 1-5%  
Bromus rubens L.  45  1 <1%  
Bromus tectorum L.  25  1 <1%  
Bromus tectorum L.  35  1 <1%  
Bromus tectorum L.  45  1 <1%  
Cirsium spp.  15  1 <1%  

Cirsium spp.  35  1 <1%  
Conyza canadensis (L.) Cronq.  5  1 <1%  
Cryptantha maritima (Greene) Greene  5  1 <1%  
Cryptantha pterocarya (Torr.) Greene  5  1 <1%  
Cryptantha spp.  5  1 <1%  
Cryptantha spp.  15  1 <1%  
Cryptantha spp.  25  1 <1%  
Cryptantha spp.  35  1 <1%  
Cryptantha spp.  45  1 <1%  
Cryptobiotic soil  15  2 1-5%  
Cryptobiotic soil  25  2 1-5%  
Cryptobiotic soil  35  2 1-5%  
Cryptobiotic soil  45  1 <1%  
Cynodon dactylon (L.) Pers.  15  1 <1%  
Cynodon dactylon (L.) Pers.  25  2 1-5%  
Cynodon dactylon (L.) Pers.  35  3 5-10%  
Cynodon dactylon (L.) Pers.  45  1 <1%  
Datura wrightii Regel  15  1 <1%  
Datura wrightii Regel  45  1 <1%  
Daucus pusillus Michx.  35  1 <1%  
Daucus pusillus Michx.  45  1 <1%  
Daucus spp.  35  1 <1%  
Descurainia pinnata (Walt.) Britt.  5  1 <1%  
Descurainia pinnata (Walt.) Britt.  15  1 <1%  
Draba cuneifolia Nutt. ex Torr. & Gray  45  1 <1%  
Encelia farinosa Gray ex Torr.  15  1 <1%  
Encelia farinosa Gray ex Torr.  45  1 <1%  
Erigeron divergens Torr. & Gray  5  1 <1%  
Erigeron divergens Torr. & Gray  35  1 <1%  
Erigeron spp.  5  1 <1%  
Eriogonum spp.  45  1 <1%  
Erodium cicutarium (L.) L'Hr. ex Ait.  25  1 <1%  
Funastrum cynanchoides (Dcne.) Schlechter  5  2 1-5%  
Galium spp.  5  1 <1%  
Galium spp.  15  1 <1%  
Galium spp.  25  1 <1%  
Galium spp.  45  1 <1%  
Gilia spp.  25  1 <1%  
Gilia spp.  45  1 <1%  
Gnaphalium chilense  25  1 <1%  
Hedeoma oblongifolia (Gray) Heller  15  1 <1%  
Hedeoma oblongifolia (Gray) Heller  25  1 <1%  
Hedeoma oblongifolia (Gray) Heller  45  1 <1%  
Isocoma acradenia (Greene) Greene  5  3 5-10%  
Isocoma acradenia (Greene) Greene  15  5 25-50%  
Isocoma acradenia (Greene) Greene  25  4 10-25%  
Isocoma acradenia (Greene) Greene  35  3 5-10%  
Isocoma acradenia (Greene) Greene  45  4 10-25%  
Lepidium lasiocarpum Nutt. var. lasiocarpum  5  1 <1%  
Lepidium lasiocarpum Nutt. var. lasiocarpum  15  1 <1%  
Lepidium lasiocarpum Nutt. var. lasiocarpum  25  1 <1%  
Lepidium lasiocarpum Nutt. var. lasiocarpum  35  1 <1%  
Lepidium lasiocarpum Nutt. var. lasiocarpum  45  1 <1%  
Linanthus bigelovii (Gray) Greene  45  1 <1%  
Loeseliastrum schottii (Torr.) Timbrook  45  1 <1%  
Maurandella antirrhiniflora (Humb. & Bonpl. ex Willd.) Rothm.  5  1 <1%  
Mimulus guttatus DC.  25  1 <1%  

Nemacladus glanduliferus Jepson  45  1 <1%  
Oenothera caespitosa Nutt.  5  1 <1%  
Oenothera caespitosa Nutt.  15  1 <1%  
Oenothera caespitosa Nutt.  25  1 <1%  
Oenothera caespitosa Nutt.  35  1 <1%  
Oenothera caespitosa Nutt.  45  1 <1%  
Parietaria hespera Hinton  5  1 <1%  
Parietaria hespera Hinton  15  1 <1%  
Penstemon spp.  5  1 <1%  
Penstemon spp.  45  1 <1%  
Plantago patagonica Jacq.  5  1 <1%  
Plantago patagonica Jacq.  15  1 <1%  
Plantago patagonica Jacq.  45  1 <1%  
Poa bigelovii Vasey & Scribn.  5  1 <1%  
Poa bigelovii Vasey & Scribn.  15  1 <1%  
Poa bigelovii Vasey & Scribn.  25  1 <1%  
Poa bigelovii Vasey & Scribn.  35  1 <1%  
Poa bigelovii Vasey & Scribn.  45  1 <1%  
Polypogon monspeliensis (L.) Desf.  5  1 <1%  
Polypogon monspeliensis (L.) Desf.  15  2 1-5%  
Polypogon monspeliensis (L.) Desf.  25  2 1-5%  
Polypogon monspeliensis (L.) Desf.  35  3 5-10%  
Polypogon monspeliensis (L.) Desf.  45  2 1-5%  
Prosopis glandulosa Torr.  5  M Mature  2 1-5%  
Rorippa nasturtium-aquaticum (L.) Hayek  25  1 <1%  
Senna covesii (Gray) Irwin & Barneby  5  2 1-5%  
Silene antirrhina L.  5  1 <1%  
Silene antirrhina L.  15  1 <1%  
Silene antirrhina L.  25  1 <1%  
Silene antirrhina L.  35  1 <1%  
Silene antirrhina L.  45  1 <1%  
Sonchus asper (L.) Hill  25  1 <1%  
Sphaeralcea grossulariifolia (Hook. & Arn.) Rydb.  5  1 <1%  
Sporobolus cryptandrus (Torr.) Gray  5  2 1-5%  
Sporobolus cryptandrus (Torr.) Gray  15  1 <1%  
Sporobolus cryptandrus (Torr.) Gray  25  1 <1%  
Stylocline micropoides Gray  5  1 <1%  
Stylocline micropoides Gray  25  1 <1%  
Tamarix ramosissima Ledeb.  15  P Sapling  2 1-5%  
Tamarix ramosissima Ledeb.  25  P Sapling  2 1-5%  
Tamarix ramosissima Ledeb.  35  P Sapling  3 5-10%  
Tamarix ramosissima Ledeb.  45  P Sapling  2 1-5%  
Vulpia octoflora  5  1 <1%  
Vulpia octoflora  15  1 <1%  
Vulpia octoflora  25  1 <1%  
Vulpia octoflora  35  1 <1%  
Vulpia octoflora  45  1 <1%  

Vegetation Structure Data Soil Data 
Species Name  Meters  # of Hits  Height  
Baccharis salicifolia (Ruiz & Pavn) Pers.  25  3  0-1.0  
Bebbia juncea (Benth.) Greene var. aspera Greene  35  4  0-1.0  
Tamarix ramosissima Ledeb.  35  3  0-1.0  

type  Meters  Probe depth (cm)  Reading 1  Reading 2  Reading 3  Average Reading  
Reference  5  8  0.01  0.02  0.02  0.02  
Reference  15  4  0.04  0.03  0.04  0.04  
Reference  25  5  0.05  0.07  0.08  0.07  
Reference  35  5  0.05  0.04  0.03  0.04  
Reference  45  2.5  0.02  0.01  0.01  0.01  

Canyon/Park 	Trail Canyon 
Transect Name: Trail Canyon Transect 2 Date: 5/18/2005 Start point: Easting 289454 Northing 3968453 GPS accuracy (m) 4 Bearing: 47 Aspect (0-360): 123 River mile: Type: Weather: End point: Easting Northing 
219 R Tamarisk area Sunny, hot, no clouds 
GPS accuracy (m) Elevation (m): Slope (degrees): 
289487 3968490 5 
453 5 
Transect description:	Down canyon from trail T1A and T1B.  Start point is within 125m of small waterfall that you climb over on creek right (2m climb).  Granite cliffs on creek right, sloping granite creek left.  100m straight away - 10 to 15m wide. 20m below where creek makes a turn to creek left. 
Geological layer:	Granite, tapeats 
Habitat type:	Riparian Mojave desert scrub 
Dominant species:	Tamarix ramosissima Ledeb., Polypogon monspeliensis (L.) Desf., Bromus rubens L., Prosopis glandulosa 
Associated species:	Cryptantha spp., Maurandya antirrhiniflora, Nemacladus glanduliferus Jepson, Camissonia spp., Aristida spp., Polypogon monspeliensis (L.) Desf., Sonchus asper (L.) Hill, Juncus spp., Sporobolus spp., Lepidium lasiocarpum Nutt. var. lasiocarpum, Vulpia octoflora, Draba cuneifolia Nutt. ex Torr. & Gray, Pseudognaphalium chilense, Penstemon palmeri Gray, Stylocline micropoides Gray, Loeseliastrum schottii (Torr.) Timbrook, Cirsium neomexicanum Gray, Encelia farinosa Gray ex Torr., Isocoma acradenia (Greene) Greene, Bebbia juncea (Benth.) Greene var. aspera Greene, Sporobolus contractus A.S. Hitchc., Plantago patagonica Jacq., Sphaeralcea spp., Galium spp., Eucrypta micrantha (Torr.) Heller, Gilia spp., Bromus japonicus Thunb. ex Murr., Oenothera caespitosa Nutt., Cryptobiotic soil, Vulpia microstachys, Linanthus bigelovii (Gray) Greene, Erodium cicutarium (L.) L'Hr. ex Ait., Erigeron divergens Torr. & Gray, Allionia incarnata L., Hedeoma oblongifolia (Gray) Heller, Parietaria hespera Hinton, Cynodon dactylon (L.) Pers., Poa bigelovii Vasey & Scribn., Baccharis salicifolia (Ruiz & Pavn) Pers., Acacia greggii Gray, Mirabilis bigelovii Gray, Gutierrezia sarothrae (Pursh) Britt. & Rusby, Silene antirrhina L. 
Surface water within 25 m? Surface water type: stream Surface rocks: granite 
Landform: Drainage channel  Light exposure: open  
Soil type: sand  Soil moisture:  dry  
Point Intercept Transect (50m)  % Cover  
Bedrock  19  
Boulder  6  
Cobble  12  
Gravel  32  
Litter (duff)  13  
Sand  31  
Stone  1  
Bromus rubens L.  4  
Cynodon dactylon (L.) Pers.  11  
Isocoma acradenia (Greene) Greene  1  
Polypogon monspeliensis (L.) Desf.  21  
Sonchus asper (L.) Hill  2  
Tamarix ramosissima Ledeb.  32  
Vulpia microstachys  1  
Vulpia octoflora  1  

Daubenmire Scale Cover Data from 50m Transect 
Ground Cover Category  Meters  Cover Scale  
Bedrock  5  4 10-25%  
Bedrock  15  5 25-50%  
Bedrock  25  6 50-75%  
Bedrock  35  5 25-50%  
Boulder  45  2 1-5%  
Coarse woody debris  15  2 1-5%  
Coarse woody debris  45  1 <1%  
Cobble  5  4 10-25%  
Cobble  15  4 10-25%  
Cobble  25  3 5-10%  

Cobble  35  4 10-25%  
Cobble  45  4 10-25%  
Gravel  5  6 50-75%  
Gravel  15  5 25-50%  
Gravel  25  4 10-25%  
Gravel  35  5 25-50%  
Gravel  45  4 10-25%  
Litter (duff)  5  2 1-5%  
Litter (duff)  15  3 5-10%  
Litter (duff)  25  2 1-5%  
Litter (duff)  35  2 1-5%  
Litter (duff)  45  4 10-25%  
Sand  5  3 5-10%  
Sand  15  4 10-25%  
Sand  25  3 5-10%  
Sand  35  3 5-10%  
Sand  45  3 5-10%  
Stone  5  2 1-5%  
Stone  15  4 10-25%  
Stone  25  2 1-5%  
Stone  35  2 1-5%  
Stone  45  4 10-25%  
Species Name  Meters  Tree Age  Cover Scale  
Acacia greggii Gray  35  P Sapling  1 <1%  
Acacia greggii Gray  45  P Sapling  1 <1%  
Allionia incarnata L.  35  1 <1%  
Aristida spp.  5  1 <1%  
Artemisia ludoviciana Nutt.  25  1 <1%  
Artemisia ludoviciana Nutt.  35  1 <1%  
Artemisia ludoviciana Nutt.  45  1 <1%  
Baccharis salicifolia (Ruiz & Pavn) Pers.  15  1 <1%  
Baccharis salicifolia (Ruiz & Pavn) Pers.  25  1 <1%  
Baccharis salicifolia (Ruiz & Pavn) Pers.  35  1 <1%  
Baccharis salicifolia (Ruiz & Pavn) Pers.  45  2 1-5%  
Bebbia juncea (Benth.) Greene var. aspera Greene  5  2 1-5%  
Bromus japonicus Thunb. ex Murr.  25  1 <1%  
Bromus rubens L.  5  2 1-5%  
Bromus rubens L.  15  2 1-5%  
Bromus rubens L.  25  2 1-5%  
Bromus rubens L.  35  2 1-5%  
Bromus rubens L.  45  2 1-5%  
Cirsium neomexicanum Gray  45  1 <1%  
Cryptantha spp.  5  1 <1%  
Cryptantha spp.  15  1 <1%  
Cryptantha spp.  25  1 <1%  
Cryptantha spp.  35  2 1-5%  
Cryptantha spp.  45  1 <1%  
Cryptobiotic soil  25  1 <1%  
Cryptobiotic soil  35  1 <1%  
Cryptobiotic soil  45  1 <1%  
Cynodon dactylon (L.) Pers.  5  1 <1%  
Cynodon dactylon (L.) Pers.  15  3 5-10%  

Cynodon dactylon (L.) Pers.  25  3 5-10%  
Cynodon dactylon (L.) Pers.  35  1 <1%  
Cynodon dactylon (L.) Pers.  45  3 5-10%  
Draba cuneifolia Nutt. ex Torr. & Gray  25  1 <1%  
Draba cuneifolia Nutt. ex Torr. & Gray  35  1 <1%  
Draba cuneifolia Nutt. ex Torr. & Gray  45  1 <1%  
Encelia farinosa Gray ex Torr.  5  2 1-5%  
Encelia farinosa Gray ex Torr.  15  1 <1%  
Erigeron divergens Torr. & Gray  5  1 <1%  
Erigeron divergens Torr. & Gray  25  1 <1%  
Erigeron divergens Torr. & Gray  45  1 <1%  
Erodium cicutarium (L.) L'Hr. ex Ait.  15  1 <1%  
Erodium cicutarium (L.) L'Hr. ex Ait.  35  1 <1%  
Erodium cicutarium (L.) L'Hr. ex Ait.  45  1 <1%  
Eucrypta micrantha (Torr.) Heller  35  1 <1%  
Galium spp.  35  1 <1%  
Galium spp.  45  1 <1%  
Gilia spp.  25  1 <1%  
Gilia spp.  35  1 <1%  
Gilia spp.  45  1 <1%  
Gutierrezia sarothrae (Pursh) Britt. & Rusby  5  2 1-5%  
Gutierrezia sarothrae (Pursh) Britt. & Rusby  35  1 <1%  
Hedeoma oblongifolia (Gray) Heller  35  1 <1%  
Hedeoma oblongifolia (Gray) Heller  45  1 <1%  
Isocoma acradenia (Greene) Greene  5  1 <1%  
Isocoma acradenia (Greene) Greene  15  1 <1%  
Isocoma acradenia (Greene) Greene  35  2 1-5%  
Isocoma acradenia (Greene) Greene  45  2 1-5%  
Juncus spp.  15  1 <1%  
Juncus spp.  45  2 1-5%  
Lepidium lasiocarpum Nutt. var. lasiocarpum  15  1 <1%  
Lepidium lasiocarpum Nutt. var. lasiocarpum  25  1 <1%  
Lepidium lasiocarpum Nutt. var. lasiocarpum  35  1 <1%  
Lepidium lasiocarpum Nutt. var. lasiocarpum  45  1 <1%  
Linanthus bigelovii (Gray) Greene  25  1 <1%  
Linanthus bigelovii (Gray) Greene  35  1 <1%  
Maurandella antirrhiniflora (Humb. & Bonpl. ex Willd.) Rothm.  5  3 5-10%  
Mimulus rubellus Gray  45  1 <1%  
Mirabilis bigelovii Gray  45  1 <1%  
Nemacladus glanduliferus Jepson  35  1 <1%  
Parietaria hespera Hinton  5  1 <1%  
Parietaria hespera Hinton  35  1 <1%  
Parietaria hespera Hinton  45  1 <1%  
Penstemon palmeri Gray  45  1 <1%  
Plantago patagonica Jacq.  25  1 <1%  
Plantago patagonica Jacq.  35  1 <1%  
Plantago patagonica Jacq.  45  1 <1%  
Poa bigelovii Vasey & Scribn.  15  1 <1%  
Poa bigelovii Vasey & Scribn.  25  1 <1%  
Poa bigelovii Vasey & Scribn.  35  1 <1%  
Poa bigelovii Vasey & Scribn.  45  1 <1%  
Polypogon monspeliensis (L.) Desf.  5  3 5-10%  
Polypogon monspeliensis (L.) Desf.  15  3 5-10%  
Polypogon monspeliensis (L.) Desf.  25  2 1-5%  
Polypogon monspeliensis (L.) Desf.  35  2 1-5%  
Polypogon monspeliensis (L.) Desf.  45  4 10-25%  
Silene antirrhina L.  5  1 <1%  

Silene antirrhina L.  15  1 <1%  
Silene antirrhina L.  25  1 <1%  
Silene antirrhina L.  35  1 <1%  
Silene antirrhina L.  45  1 <1%  
Sonchus asper (L.) Hill  5  1 <1%  
Sonchus asper (L.) Hill  45  1 <1%  
Sphaeralcea spp.  5  2 1-5%  
Sporobolus spp.  15  1 <1%  
Sporobolus spp.  35  1 <1%  
Sporobolus spp.  45  1 <1%  
Stylocline micropoides Gray  45  1 <1%  
Tamarix ramosissima Ledeb.  5  3 5-10%  
Tamarix ramosissima Ledeb.  15  4 10-25%  
Tamarix ramosissima Ledeb.  25  4 10-25%  
Tamarix ramosissima Ledeb.  35  2 1-5%  
Tamarix ramosissima Ledeb.  45  5 25-50%  
Tidestromia spp.  5  1 <1%  
Vulpia microstachys  25  1 <1%  
Vulpia microstachys  35  1 <1%  
Vulpia microstachys  45  1 <1%  
Vulpia octoflora  5  1 <1%  
Vulpia octoflora  15  1 <1%  
Vulpia octoflora  25  1 <1%  
Vulpia octoflora  35  1 <1%  
Vulpia octoflora  45  1 <1%  

Vegetation Structure Data 
Species Name  Meters  # of Hits  Height  
Bromus rubens L.  5  2  0-1.0  
Tamarix ramosissima Ledeb.  15  3  0-1.0  
Tamarix ramosissima Ledeb.  25  9  0-1.0  
Tamarix ramosissima Ledeb.  35  10  0-1.0  
Artemisia ludoviciana Nutt.  45  1  0-1.0  
Tamarix ramosissima Ledeb.  45  1  1-2  
Tamarix ramosissima Ledeb.  45  20  0-1.0  

Soil Data 
Probe depth (cm)  Reading 1  Reading 2  Reading 3  Average Reading  
2  0  0  0  0.00  
5  0.02  0.01  0  0.01  
3.5  0.1  0.07  0.09  0.09  
3.5  0.05  0.02  0.03  0.03  
8  0.05  0.05  0.07  0.06  
4  0.08  0.08  0.06  0.07  
4  0.2  0.13  0.14  0.16  

Canyon/Park Unkar Creek River mile: 72.3 R Transect Name: Unkar Creek Transect 1 Type: Tamarisk area Date: 10/8/2004 Weather: Clear, warm, some clouds Start point: End point: Easting 419435 Easting 419469 Northing 3994664 Northing 3994631 GPS accuracy (m) 6 GPS accuracy (m) 5 Bearing: 128 Elevation (m): Aspect (0-360): Slope (degrees): Transect description: Top is in middle of PROGLA. Bottom at red dox wall. Geological layer: Dox Habitat type: Riparian Great Basin desert scrub Dominant species: Encelia farinosa Gray ex Torr., Salix exigua Nutt., Prosopis glandulosa Torr., Tamarix ramosissima Ledeb. Associated species: Bromus rubens L., Erodium cicutarium (L.) L'Hr. ex Ait., Encelia frutescens (Gray) Gray, Baccharis emoryi 
Gray, Eriogonum inflatum Torr. & Frm., Carex hystericina Muhl. ex Willd., Sphaeralcea ambigua Gray, Isocoma acradenia (Greene) Greene, Isocoma acradenia (Greene) Greene, Pluchea sericea (Nutt.) Coville 
Surface water within 25 m? Surface water type: Surface rocks: sandstone Landform: Drainage channel Light exposure: open partial-shade Soil type: sandy loam Soil moisture: dry 
Point Intercept Transect (50m) % Cover Bare Soil 26 Cobble 7 Litter (duff) 65 Woody debris structure 23 Baccharis emoryi Gray 4 Encelia farinosa Gray ex Torr. 10 Eriogonum inflatum Torr. & Frm. 1 Isocoma acradenia (Greene) Greene 16 Muhlenbergia asperifolia (Nees & Meyen ex Trin.) Parodi 4 Pluchea sericea (Nutt.) Coville 4 Prosopis glandulosa Torr. 15 Salix exigua Nutt. 23 Tamarix ramosissima Ledeb. 8 
Daubenmire Scale Cover Data from 50m Transect 
Crews did not collect ground cover data for this transect. 
Species Name  Meters  Tree Age  Cover Scale  
Baccharis emoryi Gray  45  M Mature  3 5-10%  
Bromus rubens L.  35  1 <1%  
Bromus rubens L.  45  2 1-5%  
Carex hystericina Muhl. ex Willd.  5  2 1-5%  
Encelia farinosa Gray ex Torr.  15  2 1-5%  
Encelia farinosa Gray ex Torr.  25  3 5-10%  
Encelia farinosa Gray ex Torr.  35  2 1-5%  
Encelia farinosa Gray ex Torr.  45  2 1-5%  
Encelia frutescens (Gray) Gray  25  1 <1%  
Eriogonum inflatum Torr. & Frm.  25  2 1-5%  
Erodium cicutarium (L.) L'Hr. ex Ait.  25  2 1-5%  
Isocoma acradenia (Greene) Greene  35  3 5-10%  
Isocoma acradenia (Greene) Greene  45  4 10-25%  
Prosopis glandulosa Torr.  5  M Mature  2 1-5%  
Prosopis glandulosa Torr.  15  M Mature  6 50-75%  
Prosopis glandulosa Torr.  25  1 <1%  
Salix exigua Nutt.  15  4 10-25%  
Salix exigua Nutt.  25  3 5-10%  
Salix exigua Nutt.  35  6 50-75%  

Salix exigua Nutt.  45  5 25-50%  
Sphaeralcea ambigua Gray  35  1 <1%  
Tamarix ramosissima Ledeb.  5  M Mature  2 1-5%  
Tamarix ramosissima Ledeb.  25  M Mature  2 1-5%  
Tamarix ramosissima Ledeb.  45  M Mature  3 5-10%  

Vegetation Structure Data 
Species Name  Meters  # of Hits  Height  
Tamarix ramosissima Ledeb.  5  1  1-2  
Tamarix ramosissima Ledeb.  5  2  0-1.0  
Tamarix ramosissima Ledeb.  5  3  2-3  
Tamarix ramosissima Ledeb.  5  3  3-4  
Prosopis glandulosa Torr.  15  3  2-3  
Prosopis glandulosa Torr.  15  4  1-2  
Prosopis glandulosa Torr.  15  4  0-1.0  
Encelia farinosa Gray ex Torr.  25  2  0-1.0  
Encelia farinosa Gray ex Torr.  35  2  0-1.0  
Salix exigua Nutt.  35  1  1-2  
Salix exigua Nutt.  35  6  2-3  
Baccharis emoryi Gray  45  1  1-2  
Isocoma acradenia (Greene) Greene  45  3  0-1.0  

Soil Data
Crews did not collect soil data for this transect.

Canyon/Park  Unkar Creek  River mile:  72.3 R  
Transect Name:  Unkar Creek Transect 1  Type:  Reference  
Date:  10/8/2004  Weather:  Clear, warm, some clouds  
Start point:  End point:  
Easting  419422  Easting  419461  
Northing  3994642  Northing  3994617  
GPS accuracy (m)  4.7  GPS accuracy (m)  7  
Bearing:  Elevation (m):  
Aspect (0-360):  Slope (degrees):  
Transect description:  On edge of wash, right side, through riparian bank.  
Geological layer:  Dox  
Habitat type:  Riparian  Great Basin desert scrub  
Dominant species:  Prosopis glandulosa Torr., Salix exigua Nutt., Baccharis emoryi Gray, Isocoma acradenia (Greene) Greene  
Associated species:  Muhlenbergia asperifolia (Nees & Meyen ex Trin.) Parodi, Carex hystericina Muhl. ex Willd., Phragmites  

australis (Cav.) Trin. ex Steud., Cladium californicum (S. Wats.) O'Neill 
Surface water within 25 m? Surface water type: Surface rocks: sandstone Landform: Drainage channel Light exposure: open Soil type: sandy loam Soil moisture: dry 
Point Intercept Transect (50m) % Cover Bare Soil 63 Cobble 28 Litter (duff) 14 Baccharis emoryi Gray 6 Cladium californicum (S. Wats.) O'Neill 6 Isocoma acradenia (Greene) Greene 1 Phragmites australis (Cav.) Trin. ex Steud. 1 Salix exigua Nutt. 19 
Daubenmire Scale Cover Data from 50m Transect 
Crews did not collect ground cover data for this transect. 
Species Name  Meters  Tree Age  Cover Scale  
Baccharis emoryi Gray  5  2 1-5%  
Baccharis emoryi Gray  15  3 5-10%  
Baccharis emoryi Gray  25  3 5-10%  
Baccharis emoryi Gray  35  3 5-10%  
Baccharis emoryi Gray  45  1 <1%  
Carex hystericina Muhl. ex Willd.  5  1 <1%  
Cladium californicum (S. Wats.) O'Neill  35  5 25-50%  
Isocoma acradenia (Greene) Greene  5  1 <1%  
Isocoma acradenia (Greene) Greene  15  2 1-5%  
Isocoma acradenia (Greene) Greene  25  2 1-5%  
Isocoma acradenia (Greene) Greene  45  1 <1%  
Muhlenbergia asperifolia (Nees & Meyen ex Trin.) Parodi  5  2 1-5%  
Muhlenbergia asperifolia (Nees & Meyen ex Trin.) Parodi  25  1 <1%  
Phragmites australis (Cav.) Trin. ex Steud.  5  2 1-5%  
Prosopis glandulosa Torr.  15  S Seedling  1 <1%  
Salix exigua Nutt.  5  1 <1%  
Salix exigua Nutt.  15  3 5-10%  
Salix exigua Nutt.  25  3 5-10%  
Salix exigua Nutt.  35  5 25-50%  
Salix exigua Nutt.  45  3 5-10%  


Salix exigua Nutt.  15  2  1-2  
Salix exigua Nutt.  15  2  0-1.0  
Cladium californicum (S. Wats.) O'Neill  35  1  1-2  
Cladium californicum (S. Wats.) O'Neill  35  9  0-1.0  

Soil Data
Crews did not collect soil data for this transect.

Canyon/Park  Unkar Creek  River mile:  72.3 R  
Transect Name:  Unkar Creek Transect 2  Type:  Tamarisk area  
Date:  10/8/2004  Weather:  Clear, warm, some clouds  
Start point:  End point:  
Easting  419039  Easting  419075  
Northing  3994608  Northing  3994568  
GPS accuracy (m)  5  GPS accuracy (m)  12  
Bearing:  140  Elevation (m):  
Aspect (0-360):  Slope (degrees):  
Transect description:  On wash, right side, through line of TAMRAMs.  
Geological layer:  Dox  
Habitat type:  Riparian  Great Basin desert scrub  
Dominant species:  Tamarix ramosissima Ledeb., Acacia greggii Gray, Prosopis glandulosa Torr.  
Associated species:  Eriogonum deflexum Torr., Datura wrightii Regel, Isocoma acradenia (Greene) Greene  

Surface water within 25 m? Surface water type: Surface rocks: sandstone Landform: Drainage channel Light exposure: open partial-shade Soil type: sandy loam Soil moisture: dry 
Point Intercept Transect (50m) % Cover Bare Soil 61 Cobble 39 Litter (duff) 8 Isocoma acradenia (Greene) Greene 4 Prosopis glandulosa Torr. 1 Tamarix ramosissima Ledeb. 20 
Daubenmire Scale Cover Data from 50m Transect 
Crews did not collect ground cover data for this transect. 
Species Name  Meters  Tree Age  Cover Scale  
Acacia greggii Gray  25  M Mature  2 1-5%  
Datura wrightii Regel  5  2 1-5%  
Eriogonum deflexum Torr.  5  2 1-5%  
Isocoma acradenia (Greene) Greene  5  3 5-10%  
Prosopis glandulosa Torr.  45  M Mature  4 10-25%  
Tamarix ramosissima Ledeb.  35  M Mature  6 50-75%  
Tamarix ramosissima Ledeb.  45  M Mature  4 10-25%  

Vegetation Structure Data 

Soil Data
Crews did not collect soil data for this transect.

Canyon/Park  Unkar Creek  River mile:  72.3 R  
Transect Name:  Unkar Creek Transect 2  Type:  Reference  
Date:  10/8/2004  Weather:  Clear, warm, some clouds  
Start point:  End point:  
Easting  419064  Easting  419106  
Northing  3994603  Northing  3994586  
GPS accuracy (m)  4  GPS accuracy (m)  5  
Bearing:  310  Elevation (m):  
Aspect (0-360):  Slope (degrees):  
Transect description:  Opposite Transect 2A on the left side of the wash.  
Geological layer:  Dox  
Habitat type:  Riparian  Great Basin desert scrub  
Dominant species:  Acacia greggii Gray, Prosopis glandulosa Torr., Encelia farinosa Gray ex Torr.  
Associated species:  Muhlenbergia asperifolia (Nees & Meyen ex Trin.) Parodi, Erodium cicutarium (L.) L'Hr. ex Ait.,  
Pleuraphis rigida Thurb., Ephedra nevadensis S. Wats., Dasyochloa pulchella (Kunth) Willd. ex Rydb.  

Surface water within 25 m? Surface water type: Surface rocks: sandstone Landform: Drainage channel Light exposure: open Soil type: sand Soil moisture: dry 
Point Intercept Transect (50m) % Cover Bare Soil 42 Cobble 60 Litter (duff) 3 Woody debris structure 1 Acacia greggii Gray 3 Ephedra nevadensis S. Wats. 3 Prosopis glandulosa Torr. 16 
Daubenmire Scale Cover Data from 50m Transect 
Crews did not collect ground cover data for this transect. 
Species Name  Meters  Tree Age  Cover Scale  
Acacia greggii Gray  5  M Mature  4 10-25%  
Encelia farinosa Gray ex Torr.  5  2 1-5%  
Encelia farinosa Gray ex Torr.  15  2 1-5%  
Encelia farinosa Gray ex Torr.  35  2 1-5%  
Ephedra nevadensis S. Wats.  5  2 1-5%  
Erioneuron pulchellum  15  1 <1%  
Erodium cicutarium (L.) L'Hr. ex Ait.  15  1 <1%  
Muhlenbergia asperifolia (Nees & Meyen ex Trin.) Parodi  5  2 1-5%  
Pleuraphis rigida Thurb.  15  2 1-5%  
Prosopis glandulosa Torr.  15  M Mature  4 10-25%  
Prosopis glandulosa Torr.  25  M Mature  5 25-50%  
Prosopis glandulosa Torr.  35  M Mature  5 25-50%  
Prosopis glandulosa Torr.  45  M Mature  5 25-50%  
Vulpia octoflora  15  1 <1%  

Vegetation Structure Data No hits. Soil Data Crews did not collect soil data for this transect. 


















































































Appendix E  Data Forms  
Data Collector:  GRAND CANYON NATIONAL PARK Tamarisk Mapping Data  Date:  
Canyon Name:  Site Name:  
River Mile:  R  L Time Spent on Survey:  
UTM Unit Used:      NAD27  NAD 83  
Begin Easting: Begin Northing: GPS Accuracy:  m  End Easting: End Northing: GPS Accuracy:  m  
Site Description:  

Site Access / Safety: 
Tamarisk Distribution Description: 
Tamarisk Numbers: Seedlings: Saplings: Mature: Tamarisk Control Information: 
Habitat Assessment Form 
CANYON NAME: River Mile ________ River Side? R L 
LOCATION DESCRIPTION: 
UTM START: __ __ __ __ __ __ E __ __ __ __ __ __ __N GPS Accuracy ________________m 
UTM END: __ __ __ __ __ __ E __ __ __ __ __ __ __N GPS Accuracy ________________m 
NAD27 or NAD83 HIKING TIME:
DATE:
WATER:
Surface water within 25m? Y N Circle one: seep spring stream pothole river
Soil moisture:  dry moist saturated standing water  Surface rocks:

DOMINANT PLANT SPECIES:
ASSOCIATED PLANT SPECIES:

HABITAT TYPE:

VEGETATION DENSITY:
AVERAGE HEIGHT OF VEGETATION:
TAMARISK ESTIMATE:
OTHER INFORMATION:
SOUTHWESTERN WILLOW FLYCATCHER DETERMINATION:

Grand Canyon National Park, Water Quality/Discharge Data for Tamarisk Project 
Check after entered in database
Date of Survey:_________________ Arrival Time:______________________ Departure
Time:___________________________
Observer (s):_____________________________________________________________________________________________
Canyon Name: ______________________________ Location Description: ____________________________ (e.g. Kwagunt 1)
Additional Location Details: ________________________________________________________________________________

UTM Easting: ___ ___ ___ ___ ___ ___ UTM Northing: ___ ___ ___ ___ ___ ___ ___ GPS Accuracy (m) ______________
Circle one: seep  spring   stream  pothole   river Light exposure: open  full-shade partial-shade
Elevation (m): ________________ Slope (degrees): _____________  Aspect (0-360): ____________________
Soil type:  sand     loamy sand     sandy loam silt loam loam sandy clay loam silty clay loam  clay loam   sandy clay clay   silty clay
Weather (descriptive):_____________________________________________________________________________________
Weather over previous 3 days:______________________________________________________________________________
Current Temperature: Air = ______________C Water = ______________C

Water Quality 
Last Calibration

  Date: ________________  Time: ________________ Measurement Time (hhmm): _____________________ *Use military time
         Average Meter Reading # 1 2 3 Temperature (C) ______________  ______________ ______________ _______________ pH: ______________   ______________ ______________ _______________ EC (mS) ______________   ______________ ______________ _______________ TDS (ppm) ______________  ______________ ______________ _______________ 
Discharge 
Type: __________ (C=Container, P=Pygmy, W=Weir, F=Flume) *Note  well be using containers
Container Volume: _______________
Measurement Time (hhmm): _____________________

Fill time (mm:ss)  Sample Quality (1=good, 2=fair, 3=poor)  
Sample 1  
Sample 2  
Sample 3  
Sample 4  
Sample 5  
Sample 6  
Sample 7  
Sample 8  
Sample 9  
Sample 10  
AVERAGE  

Comments:______________________________________________________________________________________________ 
 GRCA Tamarisk Spring 2005 Vegetation Transect Data


Vegetation Structure Data from 50m Transects (For each section on pole, record 6 letter species code and number of times it touches that section)  
Point / Height  < 1.0  1 - 2  2 - 3  3 - 4  4 - 5  5 - 6  6 - 7  7 m +  
1  5m  
2  15m  
3  25m  
4  35m  
5  45m  

Location Description: ____________________________________________________________________________________ (e.g. Kwagunt 1) Additional Location Details: _____________________________________________________________________________________________ 
River Mile ________  River Side? R L Revisit? Y N 
Dominant Plant Species: ________________________________________________________________________________________________ 
Associated Plant Species:________________________________________________________________________________________________ 
*Include all species not hit on the transect here! 
Habitat type______________________________________    Land form: __________________________
Surface water within 25m? Y N Circle one: seep spring stream   pothole  river Elevation (m): _______________
Slope (degrees): _____________   Aspect (0-360): _________________ Light exposure:  open full-shade   partial-shade   Soil
moisture:  dry moist   saturated  standing water Surface rocks: _____________________________________

Soil type:  sand  loamy sand      sandy loam   silt loam  loam  sandy clay loam    silty clay loam   clay loam  sandy clay  clay silty clay 
COMPLETE PHOTODOCUMENTATION FORMS FOR EACH TRANSECT! 
DRAW MAP AND ENTER ANY ADDITIONAL INFORMATION: 
Soil Salinity Data for Transects  
Reading #1  Reading #2  Reading #3  
5 m  
15 m  
25 m  
35 m  
45 m  

Substrate Categories: 
Ground cover substrate classes used along transects  
Category  Description  
Bare soil  <0.1 mm (smaller than sand)  
Sand  0.1 - 2mm  
Gravel  2 mm  6.4 cm  
Cobble  6.4 cm  19 cm  
Stone  19 - 61 cm  
Boulder  > 61cm  
Bedrock  Solid rock surface, non-boulder  
Litter (duff)  Dead plant material < 3cm diameter  
Coarse woody debris  Dead wood 3-10 cm diameter  
Woody debris structure  Woody material > 10 cm in depth and width  

50 m Point Intercept Transect Data Canyon Name and Transect Number A= Tamarisk Area  B=Reference Area 
Data Point  
0.5  

1.5  

2.5  

3.5  

4.5  

5.5  

6.5  

7.5  

8.5  

9.5  

10.5  

11.5  

12.5  

13.5  

14.5  

15.5  

16.5  

17.5  

18.5  

19.5  

20.5  

21.5  

22.5  

23.5  

24.5  


Data Point  
25.5  
26  
26.5  
27  
27.5  
28  
28.5  
29  
29.5  
30  
30.5  
31  
31.5  
32  
32.5  
33  
33.5  
34  
34.5  
35  
35.5  
36  
36.5  
37  
37.5  
38  
38.5  
39  
39.5  
40  
40.5  
41  
41.5  
42  
42.5  
43  
43.5  
44  
44.5  
45  
45.5  
46  
46.5  
47  
47.5  
48  
48.5  
49  
49.5  
50  

DESCRIPTION KEYS

SURFACE ROCKS: Basalt Conglomerate Limestone Shale Sandstone  Granite Mudstone  Other ______________________________________________________________ 
LANDFORM: Rockpile: uplands composed primarily of jointed and efoliating granitic outcrops Drainage channel: bottom not side slope of a drainage confined by banks or a canyon Valley Bottom Fill: usually level places Side Slope: side of drainage channel Lower Slope: lower better watered portion of a slope Mid Slope: central portion of a slope Upper Slope: the upper driest portion of a slope Interfluve: the area between small drainage channels Ridge: high ground between two opposing slopes Slick rock: large exposed expanses of bedrock Terrace: level or gently sloping shelf perched on a slope, often caused by down-cutting rivers Mesa: level or gently sloping ground surrounded on 3 or more sides by steep down slopes and capped  Butte: similar to a mesa, except with a top that does not have a flat configuration Cliff: very steep rock slopes Talus: unsorted material resulting from mass wasting of steep mountain slopes Sand Dune/Sand Sheet: large accumulations of sand, may be stable or unstable (moving) Plateau: flat area of great extent and elevation; specifically an extensive land region; considerably elevated (more than 100 meters) above adjacent lower-lying terrain 
SOIL TAXONOMY: 
1.  Place soil in hand, remove pebbles, and add water very slowly, until it has the potential to have the consistency of putty. Add more soil or water as needed. 
a.  If the soil does not remain in a ball, circle "sand" 
2.  If the soil remains in a ball, squeeze the ball between your thumb and forefinger, attempting to make a ribbon of uniform thickness and width pushing up and over your forefinger until it breaks from its own weight. 
a.  If no ribbon is formed, record "loamy sand" 
3.  If ribbon forms but breaks before it is 2.5 cm, rub the soil between fingers. 
a. 
If very gritty, record "sandy loam" 

b. 
 If very smooth, record "silt loam" 

c. 
 If neither gritty or smooth, record "loam" 


4.  If ribbon breaks between 2.5 and 5 cm, rub the soil between fingers. 
a. 
If very gritty, record "sandy clay loam" 

b. 
 If very smooth, record "silty clay loam" 

c. 
 If neither gritty or smooth, record "clay loam" 


5.  If ribbon breaks when it is >5 cm, rub the soil between fingers. 
a. 
If very gritty, record "sandy clay" 

b. 
 If very smooth, record "clay" 

c. 
 If neither gritty or smooth, record "silty clay" 


HABITAT TYPES: Adapted from Brown et al. (1998) 
Habitat Type  Description  
Subalpine conifer forest  Engelmann spruce-alpine fir, bristlecone pine-limber pine  
Mixed conifer  Douglas and white fir, ponderosa pine, aspen  
Ponderosa pine forest  ponderosa pine, Gambel oak, white fir  
Great Basin montane scrub  oak-scrub, mountain mahogany, brittlebush, serviceberry  
Great Basin conifer woodland  pinyon-juniper series  
Great Basin desertscrub  sagebrush, blackbrush, rabbitbrush, winterfat, saltbrush  
Mojave desertscrub  creosote, blackbrush, mesquite, saltbush  
Alpine/subalpine grassland  bunchgrass (AZ fescue) and sedge-forb-grass association  
Semi-desert grassland  grama grass-scrub (Bouteloua/Pleuraphis ), mixed shrub  
Interior wetlands  Cattail, rushes, sedges, willows  
Riparian  cottonwood-willow, mixed deciduous broadleaf