Jen went backpacking July 18 to July 20, 2012 10 miles 1,500 feet gained 2 nights Mt McGregor Rocky Mtn National Park 0 I had a short few days in Colorado and met up with my sister in law from Brooklyn to take the kids ( ages 9,11 and 13) backpacking in RMNP. We had Gem Lake in mind, but the closest camping spot was McGregor Mountain. The kids had a blast.