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Welcome to the Mount Diablo Interpretive Association Website

Mount Diablo Interpretive Association (MDIA) is a non-profit volunteer organization that assists the California Department of Parks and Recreation in maintaining and interpreting Mount Diablo State Park for its 700,000 visitors each year. Through education, sponsored activities and publications, MDIA fosters appreciation and the enlightened use of Mount Diablo State Park. MDIA is proud to provide the resources necessary to keep the Summit Museum and Mitchell Canyon Visitor Center open throughout the year, and through the Volunteers in the Park Program, train and manage the many park docents, sponsor guided hikes, and help maintain trails.

Water Shortage in Mount Diablo State Park

California is in the midst of its third straight year of drought.  The entire state is in some stage of drought with more than 77% of the state experiencing “extreme” to “exceptional” drought conditions.  The majority of the water used by park visitors at Mount Diablo State Park is produced through a series of springs that is fed to various water tanks.  Once at the water tank, the water is treated, tested and then is ready for the public to use. However, with the lack of rain the past three years the springs on the mountain have been reduced to a trickle and the water tanks are close to empty.


In order to meet the parks basic water needs until the rainy season, the park has been forced to take a number of drastic measures in order to conserve water: 

• Most of the parks permanent flushing restrooms have been closed and portable toilets have been installed.

• The showers at Juniper and Live Oak Campgrounds have been turned off.  All campgrounds have portable toilets or pit toilets.  Drinking (potable) water is currently available in the campgrounds.

• Many of the water faucets located in the picnic areas and Rock City have been turned off as well. 

ALL VISITORS ARE ENCOURAGED TO BRING WATER FOR CONSUMPTION DURING THEIR VISIT.

If you are planning a long hike, run, walk, bicycle ride or horseback ride please bring plenty of water to ensure a safe and enjoyable visit.  It is not unusual for heat related illnesses (heat cramps, heat exhaustion and heat stroke) to occur at Mount Diablo State Park during the late spring, summer and early fall seasons.  Many of these illnesses can be treated without hospitalization.  However, some heat related illnesses have proven fatal to park visitors in the past.

Volunteer Opportunities 
The Association encourages the public to join MDIA and become involved in its mission to support the park. We are always looking for dedicated volunteers to take charge of or help with various programs, outreach and operations. Volunteers can commit to as little as a couple of hours a week or volunteer on a project-specific, ad hoc basis and still provide vital assistance. (read more)

Live Oak Campground Bathroom Gets an Upgrade
IMG 0958IMG 1016The Volunteer Maintanance Group led by Stephen Williams and supported by MDIA has completed maintanance and painting of the Live Oak Campground Bathroom. A dedicated group of volunteers spent most Mondays since February scraping off old paint, restoring rotted wood and painting the entire exterior of the building. Volunteers for this project were Steve Elliott, Jim Gray, Spencer Fulweiller, Jim Mitchell and Steve Williams. Unfortunatly, due to the drought, the showers and most of the bathroom will remain closed this season. Pre and post pictures show the improvement made.

New Picnic Area at the Summit

Mount Diablo State Park is pleased to announce that a new picnic area is now available at the Summit. Located at the Lower Summit, this new picnic area offers a variety of picnic tables (some sun shaded), cook grills and paved walkways. Fully handicap accessible, this new area is well suited for family or group gatherings. Also, there are nearby restrooms, interpretive panels and an impressive scenic overlook.
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Citizen scientists: help monitor fire recovery!
CameraStation04Check out the four camera stations along the Mary Bowerman (Fire Interpretive) Trail and other locations in the Morgan Fire burn area. Please take photos with your smart phone and upload them to social media. Our partner group Nerds for Nature will use the photos to create a time-lapse video of the landscape recovering and changing over the next several years. Please participate when you see the stations and be a part of studying the fire recovery. Contact Cyndy Shafer at This email address is being protected from spambots. You need JavaScript enabled to view it. .

MorganFireCameraStations