Historical Documents

LOS ANGELES COUNTY STUDIES AND DOCUMENTS

1970s & 1980s

1970 Environmental Development Guide
1973 General Plan of Los Angeles County
1976 Land Capability/Suitability Study, Los Angeles County General Plan Revision Program – Significant Ecological Areas Report
1980 County of Los Angeles General Plan Technical Supplement E (SEA Descriptions)
1982 Significant Ecological Areas of the Santa Monica Mountains Report

1991 Supplemental Studies

Phase I Study for the Cold Creek Significant Ecological Area No.9
Phase I Report for the San Fransciquito Canyon Significant Ecological Area No.19
Phase I Study for the Dudleya Densiflora Population Significant Ecological Area No.45
Phase I Study for the Kentucky Springs: Significant Ecological Area No.61
Phase I Study for the Las Virgenes: Significant Ecological Area No.6
Phase I Study for the Tonner Canyon/Chino Hills SEA No. 15
Phase I Study for the Tuna Canyon SEA No. 10

2000 SEA Update Study

Los Angeles County Significant Ecological Area Update Study – 2000 Executive Summary
Los Angeles County Significant Ecological Area Update Study 2000 – Background Report
Los Angeles County Significant Ecological Areas Update Study 2000 – SEA Criteria.pdf
Biological resources Assessment of the Proposed Antelope Valley SEA (Nov 2000)
Biological Resources Assessment of the Proposed Cruzan Mesa Vernal Pools SEA(Nov 2000)
Biological Resources Assessment of the Proposed East San Gabriel Valley SEA(Nov 2000)
Biological Resources Assessment of the Proposed Joshua Tree Woodland SEA(Nov 2000)
Biological Resources Assessment of the Proposed Puente Hills SEA(Nov 2000)
Biological Resources Assessment of the Proposed San Andreas Rift Zone SEA(Nov 2000)
Biological Resources Assessment of the Proposed San Dimas Canyon/San Antonio Wash SEA(Nov 2000)
Biological Resources Assessment of the Proposed San Gabriel Canyon SEA(Nov 2000)
Biological Resources Assessment of the Proposed Santa Catalina Island SEA(Nov 2000)
Biological Resources Assessment of the Proposed Santa Clara River SEA(Nov 2000)
Biological Resources Assessment of the Proposed Santa Monica Mountains SEA(Nov 2000)
Biological Resources Assessment of the Proposed Santa Susana Mountains/Simi Hills SEA(Nov 2000)
Sensitive Species Compendium January 2006
Additional Study Sources 2005-2006