The popular Dish area in the Stanford hills reopened to hikers and joggers on Saturday after being closed since a 171-acre grass fire on June 25.
All hiking trails are open, Stanford Deputy Chris Cohendet said.
Hikers and joggers are restricted, as before, to marked paths. There will be extra staffing in the Dish area during the fire season, Cohendet added.
The June 25 fire was later found to have been set by two children playing with matches.
A July 5 fire burned 20 acres. The cause of that fire is still under investigation.