Hmm, Hello all, I'm new to these, as well as being new to Parkour.
(Although I have had some background in gymnastics and track & field, although I am by no means flexible)
Anyway, I'm a 15 year old firespinner, in Reno, and I've become more and more interested in Parkour, and I have been looking for a group to practice with / learn from. In terms of places to practice, I happen to know a lot of good places. The University of Reno, NV campus, where I attend, has tons of places that are perfect for Parkour, as do a number of the industrial sites a ways further out. In terms of wilderness, the park known as Rancho san Raphael is an amazing place to run and exercise, and has a lot of medium height cliffs and forest-y areas. I don't know about gyms, I haven't been able to find any yet, but that doesn't mean that there aren’t any.