Hi Frank!
When Jess & I were in Montana last summer we met a lady with a E-bike up on the side of a mountain. She had driving it up a long rough dirt road to get it near a Medicine Circle. Looked like a lot of fun. She had gone first class as her bike cost $5,000.00.
Park rangers would not let her go up the pedestrial trail with it as it was motorized (something to be aware of). Enjoy the ride but be mindful we don't med well, be careful.