Ha! You just jogged my memory. On the South Side of Blanding, UT, just as you come into town, there is a small campground run by the Shell station and convenience store next door. They offer showers in the back of the store for $5, which includes towels. If you are camped, they're free. It sort of caters to truckers, but there are a heck of a lot of folks that are dispersed camping in the surrounding areas.