• We now have a mobile application that pertains to the activities that we enjoy in Mount Diablo State Park! It is called the Mount Diablo App.
  • Facilitates accurate communication between Park visitors and Park staff, especially regarding emergencies.
  • Provides real time weather conditions at the Summit and Junction.
  • Free to all Park visitors, volunteers and staff.

Instructions to download the Mount Diablo App:

Please download the Mount Diablo App and share it with you friends!

 This App is unofficial, Park Leadership has still not approved use by State Parks.