VAFB-2018-21: Appendix D - Microscopic Analyses of Wildfire Effects to the Honda Ridge Rock Art Panel, Vandenberg Air Force Base, California, Contract No. XUMU OS 100316, USACE-Omaha Task Order 14
Creators: name: Lindsay, Audrey
name: Center For The Environmental Management Of Military Lands (CEMML)
Publisher: name: Center for the Environmental Management of Military Lands (CEMML)
Year: 2018
Subjects: subject: Santa Barbara (County)
valueUri: https://core.tdar.org/browse/geographic-keyword/3486/santa-barbara-county
subject: Vandenberg Air Force Base, California
valueUri: https://core.tdar.org/browse/geographic-keyword/77005/vandenberg-air-force-base-california
subject: California (State / Territory)
valueUri: https://core.tdar.org/browse/geographic-keyword/1484/california-state-territory
subject: Prehistoric
valueUri: https://core.tdar.org/browse/temporal-keyword/53/prehistoric
subject: Chumash
valueUri: https://core.tdar.org/browse/culture-keyword/2001/chumash
subject: Honda Ridge rock art site
valueUri: https://core.tdar.org/browse/site-name/118067/honda-ridge-rock-art-site
subject: CA-SBA-550
valueUri: https://core.tdar.org/browse/site-name/93030/ca-sba-550
subject: Rock Art
valueUri: https://core.tdar.org/browse/site-type/361/rock-art
subject: Pictograph
valueUri: https://core.tdar.org/browse/site-type/364/pictograph
subject: Ash
valueUri: https://core.tdar.org/browse/material-type/157/ash
subject: carbon
valueUri: https://core.tdar.org/browse/material-type/2845/carbon
subject: finely-ground hematite
valueUri: https://core.tdar.org/browse/material-type/3203/finely-ground-hematite
subject: carbon residue
valueUri: https://core.tdar.org/browse/material-type/3204/carbon-residue
subject: Red Pigment
valueUri: https://core.tdar.org/browse/material-type/87/red-pigment
subject: Mineral
valueUri: https://core.tdar.org/browse/material-type/12/mineral
subject: Microscopic Analysis
valueUri: https://core.tdar.org/browse/other-keyword/157659/microscopic-analysis
subject: digital microscopy
valueUri: https://core.tdar.org/browse/other-keyword/165788/digital-microscopy
subject: Site Stewardship Monitoring
valueUri: https://core.tdar.org/browse/investigation-type/19/site-stewardship-monitoring
subject: Methodology, Theory, or Synthesis
valueUri: https://core.tdar.org/browse/investigation-type/6/methodology-theory-or-synthesis
subject: Site Evaluation / Testing
valueUri: https://core.tdar.org/browse/investigation-type/10/site-evaluation-testing

description: In September 2016, the Canyon Fire burned approximately 12,742 acres on southern Vandenberg Air Force Base. The wildfire impacted three rock art sites, but most negatively affected the Honda Ridge rock art site (CA-SBA-550). The northeastern side of the pictograph panel took the brunt of the fire impacts, resulting in extensive carbon deposits, micro- and macro spalling, and possibly host rock discoloration (Murphy 2017). This study, more broadly situated within the Honda Ridge Pilot Project, applied non-invasive, microscopic analysis to assess the wildfire impacts to a northeastern panel section of the Honda Ridge pictograph panel. The following report outlines the methods and results of the microscopic analyses, as well as details pertinent information regarding the Canyon Fire, fire effects to rock art, future research avenues, and current site reconstruction and panel conservation efforts. These microscopic analyses assist Vandenberg Air Force Base in fulfilling its responsibility to identify, protect, and manage cultural resources under Federal law such as Sections 106 and 110 of the National Historic Preservation Act (1966), Section 5 of the Archaeological Resources Protection Act (1974), and AF Instruction 32-7065, among other governmental regulations. This analysis also adds to the growing body of research on wildfire effects to rock art sites, which will assist cultural resource managers in developing site-specific, responsive management and conservation plans to protect rock art sites.