![Frenchie sitting and looking at camera with Mt Diablo in the background. Briones Regional Park, Contra Costa County, California, USA.](https://dogtrekker.com/wp-content/uploads/2022/07/story_4873-e1659379178953-300x169.jpeg)
Head just east of San Francisco Bay Hills and you will find yourself in the dog–friendly Tri-Valley. This region, which takes its name from the adjacent Amador, Livermore and San Ramon valleys, is home to some of California’s most dog-friendly communities.
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