Lamorinda Weekly Newspaper writer, Jenn Freedman, put together a great list of 6 local dog-friendly trails. 

Today’s feature is Blue Oak Trail:
Distance: 3.3-mile loop
Dog Rules: allowed off-leash as long as 200+ feet from the entrance
Level: Moderate with a few steep hills
Access: Reliez Valley Staging Area

More info: Managed by East Bay Regional Park District; https://www.ebparks.org/parks/briones/