This campground and the one to the south, Cool Springs, are both run by Pacific Gas and Electric Utility company. 

There are campground hosts at both campgrounds and late in September half of Ponderosa Flat closes. The entire campground closes at the end of September. 

There was plenty of water in the Reservoir and it could be okay for a boat but you have to look out for all the snags in the water, and there are a lot of them.

Campground is quiet but tight to get a large trailer in, ours is 26 feet and it was tight. The spaces in the closed portion of the campground were a bit more spacious. 

Fire rings, tables and pit toilets. It was $30 a night with no power, power sites are more expensive. 

If you have a cool campground host you can ride your ATV or Side by side out onto the dirt road and ride for miles. Just be mindful it is not really supposed to be a ride out campground.