Park and make your way to The Lodge at Big Springs.  One easy way to do that is by riding the Big Springs Express Gondola.  At the top make your way to the downstairs (1st floor) locker room of The Lodge at Big Springs.  You can do this by following the red line in the second image below from the top of the Gondola down the stairs into an outside door to the locker room.  You can also go in the front entrance of the lodge and go down the stairs inside.  For map link click here.