Ohlone Audubon Society

Serving Southern and Eastern Alameda County


Events Calendar

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Big Break/Black Diamond MInes
Saturday 17 October 2020, 09:00am - 12:30pm
Hits : 89

Leaders: Bob Dunn



All participants must pre-register for the trip by contacing our This email address is being protected from spambots. You need JavaScript enabled to view it. by clicking on the link or emailing fieldtrips AT ohloneaudubon.org. 

View our COVID-19 Field Trip Rules on our Field Trips page before registering and/or attending a field trip. 

Big Break offers a good assortment of birds on both land and water from sparrows and warblers to ducks, grebes, and gallinules. This is an interesting new place for us to bird and well worth the hour and a half drive. We will then move on to Black Diamond Mines, which is the for- mer site of the Hazel Atlas Mining company. Here, we'll look for Canyon Wren, quail, swifts, woodpeckers, rap- tors and more. Once again, these parks are well worth the effort.

Directions: To get to Big Break take Hwy 4-E to exit 30 for CA 160. Continue on CA 160 and take exit CA-4 to Stockton/ Oakley. Then turn right on Main St. and then left on Big Break Rd then right into the park. From the south, take N. Vasco Rd to exit CA-4, then right on Main St and left on Big Break Rd. into the park. Arrive at 69 Big Break Rd. Approx. 1h 30min. To get to Black Diamond Mines, return to CA-4 west to Somersville Rd. Continue west up the hill to the visitor center. Parking is free.

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