About 5 miles into the canyon past the entrance. I arrived after check-in hours and they had my packet waiting for me at the entrance. It was about 105 when I got in at 5pm in July (to be expected), but cooled down some overnight with a bit of rain. Great access to the Juniper trail with the cave— definitely worth checking out. Saw a baby scorpion in the bathroom sink, but pretty clean bathroom facilities. Biggest downside besides the heat was the relentless biting flies.