Mill-Castle Trail

HARD 6 reviews
#10 of 54 trails in

Mill-Castle Trail is a 25.1 mile moderately trafficked out and back trail located near Gunnison, Colorado that features beautiful wild flowers and is only recommended for very experienced adventurers. The trail is primarily used for hiking, trail running, and backpacking and is best used from June until September.

25.1 miles 7280 feet Out & Back



trail running


wild flowers



Colorado Tourism Office, 1625 Broadway, Suite 1700 , Denver, CO, 80202, Phone: 800-COLORADO

5 months ago

6 months ago

Amazing views, great fall color! Didn't hike the whole thing, just wanted an afternoon hike so I went up to the first ridge--where you pop up over the valley you've been hiking in until then.

1 year ago

Tough as it gets steep. Beautiful in fall.

1 year ago

1 year ago

How was it you might ask? It is an amazing day hike for any one. You can hike to a meadow, and turn around or hike till the trail ends. Both choices are perfect for this hike, and no matter your means of transportation you won't miss the view.

2 years ago

Mill Castle is a steep trail, I suggest going in from the south, and up to Storm Pass. The Views from Storm Pass are excellent, North and South. The Northern end of the trail was full of cattle grazing, with a lot of manure to avoid at lower elevations. We saw a herd of 100+ elk just south/west of Storm Pass, and several mule deer.