Ridge Route Preservation Organization

The sites below have a lot of detailed information about the Ridge Route and its history.

RidgeRoute.Com by Harrison Scott – Covers the history of the route and has books for sale
Historic Highway 99 Association of California
Virtual Tour of the Ridge Route by Michael Ballard – Online tour of the highway from Castaic to Gorman
Virtual Tour of US 99 by Michael Ballard – Online tour of the highway from Los Angeles to Famoso
Ridge Route Photos – Alps Roads
That Ribbon of Highway by Jill Livingston – Books on US 99 along its entire length
National Register of Historic Places – Ridge Route Listing
Angeles National Forest

Current Roadway Status

The Ridge Route is closed to through travel from Castaic to Gorman. It is open from only from State 138 to the Tumble Inn at the north end, and from approximately one mile north of Templin Highway to Castaic at the south end. The central portion remains closed to all motor vehicle traffic. Walking, bicycling, and horseback riding are allowed. The roadway is not open for through travel from State 138 to Castaic.

Use caution on the northern end between Sandberg and Liebre Maintenance Camp site as there are many rock slides and other debris covering the roadway. All open sections are traversable by two-wheel drive automobiles with average clearance.

If you find the gate open at either end, do not expect the other gate to be open. The default position of the gate is closed at this time. Travel ONLY at your own risk as the roadway is legally closed.

During the rainy season, TRAVEL IS NOT RECOMMENDED along the Ridge Route from Templin Highway to Sandberg during and a few days after any rain or snow. The roadway is fragile in places and travel over the roadway in a heavy vehicle can damage the concrete and asphalt paving. Wait at least a few days after ANY rain or snow before attempting travel and do not attempt to drive a heavy vehicle over the roadway at any time.

Ridge Route Links

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