There is a primitive campground (no hook ups but free) at Little Molas Lake. Just follow the sign off of US 550 towards Little Molas Lake and choose a site. If it doesn't suit your fancy, or if it's already full, there is an obvious campground just to the south at Molas Lake. Have fun!

Which campground did you stay in at Little Molas Lake in Colorado? That looks Like a place I would love to take our 20" Safari. The Forest Service map I can finds does not show camping for RVs at the Little Molas Lake location.