Dimond O Campground is located adjacent to the Middle Fork Tuolumne River in Stanislaus National Forest and offers excellent access for fishing and swimming, with a nice trail system along the riverbank.

The campground features single and double-family sites with picnic tables, bear boxes, campfire pits, vault toilets, and potable water, with rates around $46 per night.

It's the closest campground to Yosemite's Big Oak Flat entrance and Hetch Hetchy Reservoir, operating seasonally from May through September with reservations available through Recreation. gov.