20230901 10261900 1.0 TRUE Significant Ridgelines Significant ridgelines that have been adopted by several CSDs or Plans within in the unincorporated parts of the county.UPDATE HISTORY:2/27/13 - for the Santa Clarita Valley Area Plan update.9/8/14 - to delete a ridgeline that was taken out per the Agua Dulce CSD that was Adopted by the Board of Supervisors on 3/4/14.10/22/14 - to update ridgelines as a result of the final certification of the Santa Monica Mountains Coastal Plan. County of Los Angeles Department of Regional Planning GIS Section