Ft collins isn't exactly hills, much less mountains. I was thinking either Beaver or Bailey.. or Leadville as mountain courses.
I was just poking fun at the "Mountains" back east since I live higher than any place east of the Mississippi. I've hiked some brutal hills with serious steep elevation gains in Michigan, but your mountains back there aren't very tall, or very rugged. They are older than the Rockies, more like our foothills.