Arrowrock Reservoir is a decent place to camp. The drive there is long and slow-going along a washboard dirt road, but the best part is that this spot is usually uncrowded, which is nice when you are looking for some quiet solitude. It's a steep hike down to the water in the reservoir, but not too bad. The camp sites are nice and have some pine trees, but other than that, the landscape is very desert-y.