Learn more about 'New Farm' site

Save Mount Diablo hikes explore new Hidden Valley Open Space

Save Mount Diablo is now working to "Save Tassajara Valley." To this end, the organization is offering hikes to show off the new Hidden Valley Open Space in San Ramon and to talk about development threats.

"The hike is both about informing the public about this incredible new preserve, and also about threats to the Tassajara Valley, which are visible from the trail," said Seth Adams, director of Land Programs for Save Mount Diablo.

"Tassajara Valley is just east of the county Urban Limit Line and San Ramon's Urban Growth Boundary. It is an agricultural and open space buffer between preserved open spaces in every direction, linked by Camino Tassajara Road and Tassajara Creek, with headwaters to the north in Mt. Diablo State Park and Morgan Territory Regional Preserve. It is beautiful and endangered species habitat," according to the Save Mount Diablo Web site.

"County voters, including majorities in Danville and San Ramon, voted to place the Tassajara Valley outside of the urban growth boundaries in 2006. The 'New Farm' project is a cynical attempt to break the urban growth boundaries and its developers are in the middle of a three-pronged approach aimed at gaining approval.

"If they're successful, other parcels in the valley will follow and urban growth boundaries will be at risk throughout the county. Growth management will be destroyed."

Adams is leading a hike at 9:30 a.m., Saturday, Nov. 7, in the new Hidden Valley Open Space. Participants will have the options of the following hikes:

* 1 mile (350-foot gain/loss);

* 3.5 mile (650-foot gain/loss); or

* 4.5 mile full loop (800-foot gain/loss).

The hike will take from one to three hours depending on which option is chosen, said Adams. The hike begins at a hiker gate across from 2187 Longleaf Circle in San Ramon. Hikers are advised to bring water, layers and sunscreen.

For more info, call George Phillips at 947-3535 or e-mail

Find more information about development in Tassajara Valley and further hikes at

Other hikes will take place Dec. 6, Jan. 16, Feb. 21, March 21 and April 11. Or hikes can be taken without guides, using the map and description found at


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