Juniper Campground — Mount Diablo State Park

Juniper Campground offers a mixed experience depending on when you visit. Summer temperatures can reach extreme highs (over 100°F), making it challenging to stay comfortable. Despite the heat concerns, the campground provides excellent amenities including free water and shower facilities. Many campers appreciate the spacious sites that come equipped with picnic tables, fire pits, and food storage boxes. The proximity to hiking trails, including the path to the summit, is frequently mentioned as a highlight. For the most enjoyable experience, consider visiting during spring when temperatures are more moderate.

Mount Diablo State Park offers two main developed campgrounds: Juniper Campground and Live Oak Campground. Juniper is situated at a higher elevation and features amenities like picnic tables, fire pits, food storage boxes, bathroom facilities, and showers. Sites are spacious and can accommodate various camping setups. Live Oak Campground is at a lower elevation and offers similar facilities. Both campgrounds require reservations, though walk-up availability sometimes exists during off-peak periods. The park also offers group camping options for larger parties. No backcountry or primitive camping is permitted within the park boundaries.

Reservations for Juniper Campground can be made online through the California State Parks reservation system (ReserveCalifornia). While advance booking is recommended, especially during weekends and peak seasons, some visitors have had success securing sites upon arrival during off-peak times. If attempting a walk-up reservation, aim to arrive early afternoon (around 2pm) for the best chance at availability. To guarantee your spot, book online as far in advance as possible, as the reservation window typically opens six months ahead.

Maps of Juniper Campground are available through multiple sources. The official Mount Diablo State Park website provides downloadable PDF maps showing campground layout and site numbers. Physical maps can be obtained at the park entrance station when you check in. For more detailed information including trail connections and facilities, the visitor center at the park also offers comprehensive maps. California State Parks maintains updated maps that show the campground's location within the larger park system and its proximity to hiking trails and the summit.