Ever heard of Iowa City, CO? Need 500-1000 yards to shoot.

[Brass]

I'm going up for a weekend and I would like to set up some steel at 500 to 1000 yards. The problem is, there is a lot of recreational 4-wheeling and ATVing going on around there, and I don't have access to private property large enough to set up a rifle range like this.

The area is about 20 minutes east of Gunnison, or so. If you know of a secluded, safe, and legal spot that is accessible with our ATVs, I'd love to get a recommendation for a place to shoot.