I camped here twice last summer when I worked in the park as a wildlife research technician studying bats (This cabin may only be available for park staff). The hike in is best done as a through hike with a planned pick up on the other side. The trail is hard to follow in some areas. Starts out flat then you go up Mary Mountain where the cabin is located. The Mary mountain cabin is small but has enough bedding for up to 5 or 6 people. It has bunk beds, cots, tons of sleeping bags and pads. There is a cute porch, pic nic table, fire pit, and a double seated outhouse. Locks up nicely as there are definitely bears in the area. The small lake in front of the cabin is cold and clear. One of my favorite places in the park!