Peregrin Falcon Wander

Saturday, April 18, 2020

Hike is cancelled per guidance of the California Department of Public Health on measures to help reduce the rate of transmission of the COVID-19 virus.

Photo credit:

Maren Smith


Saturday, April 18, 2020


9:30 AM - 1:30 PM




Staci Hobbet and Ken Lavin



Castle Rock Regional Recreation Area, 1700 Castle Rock Road, Walnut Creek.


Take wing on a nature hike to view the cliffs and caves of Castle Rock, nesting site of the Peregrine Falcon, fastest animal on Earth. 

In 1950, Peregrine Falcons disappeared from these cliffs, victims of DDT. The birds were reintroduced to Castle Rock in 1989 and have done well, but now face new challenges. As we view the falcons from the canyon below, Mount Diablo Peregrine team leader Staci Hobbet will describe the fascinating natural history of these apex predators. We'll also be on the lookout for spring wildflowers, including the endemic Mount Diablo Globe Lily. Our route follows a historic stagecoach road up Pine Canyon and passes the enigmatic "China Wall" of Mount Diablo. 


Bring water, lunch, dress in layers, wear good hiking shoes, and bring poles if you normally use them. This moderate hike is 5 miles roundtrip with several hundred feet in elevation gain. 


We will assemble near the trailhead gate at the end of Castle Rock Road. There is a parking area near our meeting place and overflow lots along Castle Rock Road. We will pass restrooms as we begin our hike.

Event Details

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