Limestone Canyon

Limestone Canyon is controlled and monitored by the Irvine Ranch Conservancy (IRC). All access to the land in this area requires permission from the IRC. Each month, there are a number of docent-led and open access days which the public can sign up for via their website.

There are many ways to ride around Limestone Canyon. This particular ride starts with a grunt of a fire road climb up to Loma Ridge, descends down to the “Sinks” and returns on a mild fire road path through an Oak Woodland area.


Limestone Raptor Sinks Loop
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Elevation Profile:

Photos of Limestone Canyon:

The Sinks aka the Mini Grand Canyon

Augustine Staging Area:

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