Nighthawk Trail – Hall Ranch to Button Rock: One hike with a variety of terrain that I would suggest is Hall Ranch Open Space in Boulder County. It starts out in low desert terrain and ascends into alpine meadows. We have never failed to see herds of deer whenever we go to Hall Ranch.
A moderate hike would be to take the Night Hawk trail 4.7 miles to where it joins the Button Rock Preserve trail. A more challenging hike would be to hike the extra 2 miles to the Button Rock Reservoir for a round trip of 13.4 miles.
You can always decide you’ve had enough at the 4.7 mile mark and cut the trip to a 9.4 mile hike. Toward the 4 mile mark you’ll see views of Longs Peak in the distance and it should still be snow-capped by June 7th. Grab a map at the trailhead.