I landed there this summer in my Super Cub and also walked the whole area this month hunting deer. It is rough and narrow and not for most tricycle planes with minimum prop clearance. You need to be able to pick you landing spot and then hit it. With the bigger tires on the Cub it is not near so rough. Here's a picture of the Cub with 8.5's on and with these tires it is rough enough that you notice it.
It is a beautiful area. Both ends of the strip end at the North Fork of the Flathead River. The strip was built on a bow in the river. The other side of the river is Glacier National Park. The strip was originally private and was the bought by the Forest Service. The road leading to the strip is closed during the fall and winter months and the assumption is that the strip is then too although the FS is inconsistent in their treatment of the strip.
Here's another view from a few years ago, before the fire. You get a better view of the entire strip and the roughness. That is a tricycle gear plane out there in this picture. As I said, you need to be able to hit your spot.