Doolan Canyon
Doolan Canyon is a valley in Alameda County, California.Geography
It is located east of Tassajara road, and south of the Contra Costa County border. Cottonwood Creek flows through Doolan Canyon.Nature
Doolan Canyon has high amounts of Tufa and Alkaline water.
The species of Loggerhead shrike has also been found around the area.
East Bay Regional Park District says that the Doolan Canyon area is habitat for the endangered species Alameda whip snake and red-legged frog. It also supports other "special status" species and some rare alkali soil plants.History
On May 24, 2007, Livermore and Dublin announced a plan to preserve the canyon.
On March 4, 2019, the valley was given 160 more acres of land.