I don't know what you mean by 'close,' but there's a beautiful, tranquil, free campground just past arroyo seco, in the opening of the ski valley. It's the first campground on the right and I thiiiink it's called lower hondo. It's a short hitch to town, or you could even walk, if you're a beast. You could *definitely* walk into seco. There are usually a few people camping out there, and I've had luck just hitching rides with my neighbors, but also, I've had no trouble being left entirely alone. If you go, kiss it for me! I miss that place so much.