Thank you both for your replies. We are located in Colorado, about 20 miles east of Denver, in a town called Strasburg. Strasburg sometimes has trouble finding umpires b/c of the distance to our fields from Brighton/Denver, which is what initially piqued our interest. Strasburg LL plays the bulk of their games in Brighton, which is where we took our class. We will initially be calling games in the Brighton League (BYBSA). Hopefully as we gain more experience, will branch into the Denver area with USSSA, et al. As I understand it, fall ball is the place to learn, both as players and as umpires. The guys that run the BYBSA seem to be on top of it and we're excited to get going.