No wild horses, but a great campground!
This Nevada State Recreation Area is in a beautiful very remote location, along the Wild Horse reservoir. There are two camping areas with about a dozen sites in each. Each site has a nice picnic table, rain / sunshade, and fire ring...and lots of sun for the solar panel. The bathroom facilities are the fanciest we've ever seen for $15 per night. Can you say, "Custom tiled shower?" Someone did a really nice job. And, the campground is kept emaculate.
Just below the campground is a boat ramp and parking lot and swimming beach area. The lake is great for boating, fishing and paddling. The winds we experienced would make it a great lake for sailing, and sailboarding. There are numerous hikes along forest roads in the area that will get you up into the mountains (and even up to an old gold mine), but not alot of "trail hikes." Mountain biking is a great option along these backroads.
The nearest town with services is Owyhee, gas and small grocery store, about 35 miles to the north. There was no cell service in the campground, but we found it on our hike up the mountain!