BETA PHOTO: The entrance to the Red Cliff Campground.
Description
A fairly easy approach leads you to the base of an obvious sandstone cliff. There are several bolted routes ranging from 5.8 to 5.10. Some shady spots and reasonable temps most of the summer. The approach is a little dicey (steep and loose). Good approach shoes are recommended.
Getting There
The campground is in the Gallatin Canyon approximately 48 miles south of Bozeman, MT on US 191. It's about 7 miles south of the Big Sky ski area. Enter the camp ground by crossing the bridge. At the fork in the road veer right. Continue back until the obvious trail head. The cliff is just up the trail.
The Red Cliff's Campground is open for camping from 5/15 - 9/15. Before or after this time you have to park on the road and walk into the campground. This will add a bit to your approach. You can also park in the pick nick area and walk in.
It very well could be. The only limestone I have climbed has tended to be a darker gray color. I suppose I have seen some that is more of a tan as well. I read somewehre else that this was sandstone, and looking at the rock it was very red. However, the ground there was saturated with what looked like red clay. So as you point out I suppose this could be limestone stained by the red clay.
The rock formation did have a lot of pockets typical of limestone, so it is very possible.