There are a couple of cabins left and a mine. The cabins have been restored by the Forest Service and its possible that they lock the cabins during the winter. Chances are pretty good that when you visit they should be unlocked.
Back in the late 1800's they were trying to link a road from Lundy to Bennetville but they never finished due to the harsh winter that hit during the construction. Cat read somewhere that if you found the right canyon that the road construction crew just abandoned their equipment there and its just waiting to be explored/discovered!
We've tried two canyons so far, lets cross our fingers (paws) that we are luckier this year!