Tentman - I found this campground via the park Web site, and I tent camped there in May 2002.
Campground Review
Arches National Park is an awesome place that should not be missed, even if you only have time for a drive-through. It would certainly reward a more extended visit though. The campground fills up by mid-morning even in May, when a lot of other places in the region are near empty. There are only 52 sites, and $10 is a good price for a place with flush toilets and water. But the site is also without much shade, rocky, and windswept, which pretty much describes the whole park.