Help keep our trails and parks open during COVID-19 by committing to social distancing. Some trails or park services may be closed this weekend so check with local authorities before heading out.
Learn more

Best trails in William F Hayden Green Mountain Park

2,995 Reviews
Looking for a great trail in William F Hayden Green Mountain Park, Colorado? AllTrails has 16 great hiking trails, trail running trails, mountain biking trails and more, with hand-curated trail maps and driving directions as well as detailed reviews and photos from hikers, campers, and nature lovers like you. Ready for some activity? There are 12 moderate trails in William F Hayden Green Mountain Park ranging from 3.2 to 12.3 miles and from 6,062 to 6,856 feet above sea level. Start checking them out and you'll be out on the trail in no time!
Show more
Map of trails in William F Hayden Green Mountain Park
Park information
Helpful links
Top trails (16)
#1 - Green Mountain via Green Mountain and Hayden Trail Loop
William F Hayden Green Mountain Park
moderateYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarGray Star(348)
Length: 4.6 mi • Est. 2 h 28 m
Green Mountain via Green Mountain and Hayden Trail Loop is a 4.6 mile heavily trafficked loop trail located near Denver, Colorado that offers the chance to see wildlife and is rated as moderate. The tShow more
#2 - Green Mountain and Hayden Trail Loop
William F Hayden Green Mountain Park
easyYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarGray StarGray Star(349)
Length: 3.2 mi • Est. 1 h 43 m
Green Mountain and Hayden Trail Loop is a 3.2 mile heavily trafficked loop trail located near Denver, Colorado that features beautiful wild flowers and is good for all skill levels. The trail offers aShow more
#3 - Green Mountain Trail
William F Hayden Green Mountain Park
moderateYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarGray StarGray Star(303)
Length: 6.4 mi • Est. 3 h 16 m
Green Mountain Trail is a 6.4 mile heavily trafficked loop trail located near Denver, Colorado that features beautiful wild flowers and is rated as moderate. The trail is primarily used for hiking, waShow more
#4 - Box O' Rox, Rooney, Hayden, and Green Mountain Trails Loop
William F Hayden Green Mountain Park
moderateYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarGray StarGray Star(239)
Length: 9.7 mi • Est. 5 h 3 m
Box O' Rox, Rooney, Hayden, and Green Mountain Trails Loop is a 9.7 mile heavily trafficked loop trail located near Morrison, Colorado that offers the chance to see wildlife and is rated as moderate. Show more
#5 - Green Mountain, Rooney Valley and Rooney Trail Loop
William F Hayden Green Mountain Park
moderateYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarGray StarGray Star(208)
Length: 5.8 mi • Est. 2 h 58 m
Green Mountain, Rooney Valley and Rooney Trail Loop is a 5.8 mile moderately trafficked loop trail located near Denver, Colorado that offers the chance to see wildlife and is rated as moderate. The trShow more
#6 - Green Mountain and Hayden Trail Loop
William F Hayden Green Mountain Park
easyYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarGray Star(357)
Length: 1.8 mi • Est. 1 h
Green Mountain and Hayden Trail Loop is a 1.8 mile heavily trafficked loop trail located near Denver, Colorado that features beautiful wild flowers and is good for all skill levels. The trail is primaShow more
#7 - Rooney Valley Trail/Green Mountain Trail Loop
William F Hayden Green Mountain Park
moderateYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarGray StarGray Star(197)
Length: 3.6 mi • Est. 2 h
Rooney Valley Trail/Green Mountain Trail Loop is a 3.6 mile heavily trafficked loop trail located near Morrison, Colorado that features beautiful wild flowers and is rated as moderate. The trail offerShow more
#8 - Green Mountain Novice Loop
William F Hayden Green Mountain Park
moderateYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarGray StarGray Star(162)
Length: 6.3 mi • Est. 3 h 16 m
Green Mountain Novice Loop is a 6.3 mile moderately trafficked loop trail located near Denver, Colorado that offers scenic views and is rated as moderate. The trail offers a number of activity optionsShow more
#9 - Green Mountain Trail
William F Hayden Green Mountain Park
moderateYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarGray StarGray Star(195)
Length: 3.2 mi • Est. 1 h 49 m
Green Mountain Trail is a 3.2 mile heavily trafficked out and back trail located near Denver, Colorado that features beautiful wild flowers. The trail is rated as moderate and offers a number of actiShow more
#10 - Rooney Trail Loop
William F Hayden Green Mountain Park
easyYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarGray StarGray Star(195)
Length: 3.4 mi • Est. 1 h 39 m
Rooney Trail Loop is a 3.4 mile heavily trafficked loop trail located near Denver, Colorado that features beautiful wild flowers and is good for all skill levels. The trail is primarily used for hikinShow more
Showing results 1 - 10 of 16