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Hayden Park on Green Mountain

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Overview

This 2,400 acre park offers many trail options with a range of difficulties, including some quite steep hills up to the 6,800' summit.

Views are outstanding from downtown Denver all the way to the high peaks, including three 14'ers.

Wildlife is abundant, and depending on season, you will find rattlesnakes, prairie dogs, coyotes, mule deer, lilies, larkspur, lupine, coneflower, and more.

This was ranched in the 1860's by Alexander Rooney and Jacob Downing and then operated as a cattle ranch until the mid-1900's by the Hayden family.

Visiting Tips

There are no trees anywhere in the park, and the sun exposure makes it HOT! This can be great on a sunny winter day, and often dries out fast after a snow.

Recommended Routes in Hayden Park on Green Mountain - 3

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Favorite Hiking around the aptly-named Green Mountain
Intermediate

Green Mountain Tour

5.4 mi 8.7 km 909' Up 276.95 m Up 900' Down 274.3 m Down

West Pl…, CO
Favorite Keep on the lookout for rattlesnakes. They live here and can occasionally be seen on the trails.
Intermediate/Difficult

Green Mountain Short Tour

3.9 mi 6.3 km 814' Up 248.16 m Up 814' Down 248.04 m Down

Morrison, CO
Favorite Hiking around the aptly-named Green Mountain
Intermediate

Green Mountain Summit Loop

7.7 mi 12.4 km 878' Up 267.75 m Up 878' Down 267.51 m Down

West Pl…, CO

Hayden Park on Green Mountain Running

  • 19 Miles 31 Kilometers of Trail
  • 3 Recommended Routes
  • 1 Easy Trail Easy Trails
  • 15 Intermediate Trails Intermediate Trails
  • 0 Difficult Trails Difficult Trails
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Trails in Hayden Park on Green Mountain - 13

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6.5 mi 10.5 km #1Green Mountain Trail
Intermediate
West Pleasant View, CO
Intermediate
West Pleasant View, CO 41 
2.5 mi 4.1 km #2Rooney Valley Trail
Intermediate
Morrison, CO
Intermediate
Morrison, CO
1.7 mi 2.8 km #3Hayden Trail
Intermediate
Morrison, CO
Intermediate
Morrison, CO
2.7 mi 4.4 km #4Summit Loop Trail
Easy/Intermediate
West Pleasant View, CO
Easy/Intermediate
West Pleasant View, CO
1.7 mi 2.8 km #5Box 'o Rox
Intermediate
West Pleasant View, CO
Intermediate
West Pleasant View, CO
2.0 mi 3.2 km #6North Access Trail
Intermediate/Difficult
West Pleasant View, CO
Intermediate/Difficult
West Pleasant View, CO
0.6 mi 1.0 km #7Green Mountain Alternate
Intermediate
Morrison, CO
Intermediate
Morrison, CO

Photos of Hayden Park on Green Mountain - 38

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Loved all the wild flowers!
May 1, 2015 near Morrison, CO
Keep on the lookout for rattlesnakes. They live here and can occasionally be seen on the trails.
May 3, 2015 near Morrison, CO
Looking back at the deer on the hill
Jan 30, 2018 near West Pl…, CO
Facing Longs Peak
Nov 14, 2018 near West Pl…, CO
Snow and ice on trail
Nov 14, 2018 near West Pl…, CO
Near the summit looking north
Apr 15, 2019 near West Pl…, CO
Lookout.
Nov 14, 2021 near West Pl…, CO
Start of box of rocks trail.
Nov 14, 2021 near West Pl…, CO