The data herein is a combination of varying years, partners, and available online GIS data to represent field assessed invasive plant populations. The data was compiled by the Inland Empire Resource Conservation District and used cooperatively between partners for vegetation management activities on Highway 15, Cajon Pass. The Southern California Ignition Reduction Project (SCIRP) is a multi agency effort to address wildfire risk in and in the vicinity of state responsibility areas and National Forest Land.