As interesting for its human history as for its dog-friendly attributes, this 5,375-acre open-space oasis, part of the East Bay Regional Park District, once harbored five communities associated with the most extensive coal-mining operations in California.
Many historic buildings and artifacts remain for visitors to examine, while 65 miles of trails twist through diverse landscapes ranging from oak chaparral to evergreen forest.
You and Daisy will have to start out connected by a leash, but once clear of parking lots, campgrounds, visitor centers and other developed areas, you can unclip and let her romp unencumbered in the emerald landscape.
Just make sure she's “under control,” which means staying within eyeball distance, coming when called and steering clear of equestrians, wildlife and livestock.
Climb high for the best views, and expect a good wildflower show in late March.