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William Heise (San Diego County Park)

William Heise County Park is a 945-acre park located in Julian, California. It is a popular destination for camping, picnicking, hiking, and horseback riding. The park is home to a variety of wildlife, including deer, coyotes, and mountain lions. The park also features a variety of trails, including the Cedar Creek Trail, which is a 4.5-mile loop that takes visitors through a variety of habitats. The park also has a lake, which is stocked with trout and bass. Visitors can also enjoy fishing, swimming, and boating on the lake. The park also offers a variety of educational programs, including nature walks and bird watching.

Amenities

- Recreational Facilities

• Pond
• Horseshoes
• Playground

- Policies

• Pets Welcome
• Pets $
• Day Max Stay (14)
• Tent Camping Allowed

- Other Amenities & Services

• Restroom and Showers
• Laundry

- Recreation Nearby (within 10 miles)

• Hiking

- Facility

• Type (Public Park)

- On-Site Rentals

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- Sites

• Spaces Available (102)
• Max Length (40)
• Paved Sites (20)
• 30 Amp
• Dirt Sites (82)
• Electric (21)
• No Hookups (81)
• Max Amps (30)
• Back-ins (12 x 40)
• Room for Slideouts (No)

User Reviews

Amanda Mueller

November 20, 2025

This may be a better park than just our overnight stay indicated, but for folks who spend a lot of time in the outdoors this was not a great park. It was at least fairly clean and well kept except for a LOT of dog poop, but that is on the thoughtless users not the staff. We picked the wrong trail to do, the Cedar Trail, because we arrived late in the afternoon and only had time for a short hike. I think the other trails must be better based on other reviews. The Cedar Trail was just a mile of rough wash going up and down steep hills with no views to reward the climbs. The campground loop that we stayed in (1-20) had sites very crowded together and only 2 or 3 that were even close to level. Other areas we walked through didn’t appear much better and the tent area was a muddy mess with one bathroom for 40 sites. The bathrooms themselves were nice, basic and clean with flush toilets and pay showers. The cabin loop was a nice area with cute basic cabins, but they also were right on top of each other. Power and water is available on the RV sites as well as picnic tables and fire rings. There is a dump station on site which was why we came in out of the forest to this park in the first place. Not someplace we would visit again.

Durand Smiley

October 21, 2025

We had a great time! The park was clean and well maintained. We rented a cabin for our trip, between the roof and the close proximity to the town we had an easy time. Great for beginners or weekenders.

Susan Logan Eubanks

August 24, 2025

Beautiful campground for our travel trailer. Lots of trees for shade. Well maintained roads. Mostly level RV site. Partial hookups a plus. Only wish they had more trash dumpsters near the campsite.

LeeAnn N

August 17, 2025

We had such a wonderful experience camping here in our little RV. The park is very clean and well kept. The hiking trails were beautiful and well maintained. What a nice park nestled in a well-forested area with beautiful views, lots of wildlife, and clearings for stargazing. Just a mile away from Julian, I wish we had planned a trip into town before we headed back down the hill. We loved seeing all a variety of hawks, woodpeckers, blue jays, and the resident flock of wild turkeys! Delightful!

Daniel Marler

July 29, 2025

July 2025 was our first visit since 1986. Much has been added and improved since then. The hiking trails are outstanding, nothing long, but well maintained. The scenery is worth the effort. Desert and ocean (marine layer) views along with cedar forest (Watch out for the abundant poison oak!) Spacious, private, level camp sites and parking for the most part. Clean restrooms and simple pay showers starting at 4 minutes for two quarters (no controls on hot/cold/flow rate; my 6 minute shower during a mid-day lull offered no warm water at all ... hence the 4 not 5 star rating.

Map for William Heise (San Diego County Park)

Contact information