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 Alderfer Three Sisters Open Space Park

4857 Reviews
Looking for a great trail in Alderfer Three Sisters Open Space Park, Colorado? AllTrails has 25 great hiking trails, mountain biking trails, trail running 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 15 moderate trails in Alderfer Three Sisters Open Space Park ranging from 1.5 to 12.4 miles and from 7,168 to 8,540 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 Alderfer Three Sisters Open Space Park
Park information
Helpful links
Top trails (25)
#1 - Alderfer Three Sisters Trail [CLOSED]
Alderfer Three Sisters Open Space Park
moderateYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarGray Star(1193)
Length: 6.7 mi • Est. 3 h 31 m
Note: Alderfer/Three Sisters Open Space Park is currently closed until further notice due to wildfire operations. For more information, please see https://www.jeffco.us/AlertCenter.aspx?AID=714 This Show more
#2 - Evergreen Mountain Trail [CLOSED]
Alderfer Three Sisters Open Space Park
moderateYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarGray Star(988)
Length: 4.2 mi • Est. 2 h 15 m
Note: Alderfer/Three Sisters Open Space Park is currently closed until further notice due to wildfire operations. For more information, please see https://www.jeffco.us/AlertCenter.aspx?AID=714Show more
#3 - Brother's Lookout via Sisters Trail and Silver Fox Trail [CLOSED]
Alderfer Three Sisters Open Space Park
easyYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarGray Star(220)
Length: 2.9 mi • Est. 1 h 29 m
Note: Alderfer/Three Sisters Open Space Park is currently closed until further notice due to wildfire operations. For more information, please see https://www.jeffco.us/AlertCenter.aspx?AID=714Show more
#4 - The Brother and Sisters Loop [CLOSED]
Alderfer Three Sisters Open Space Park
moderateYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarGray Star(234)
Length: 3.1 mi • Est. 1 h 33 m
Note: Alderfer/Three Sisters Open Space Park is currently closed until further notice due to wildfire operations. For more information, please see https://www.jeffco.us/AlertCenter.aspx?AID=714Show more
#5 - Evergreen Mountain via East and West Trail Loop [CLOSED]
Alderfer Three Sisters Open Space Park
moderateYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarGray Star(274)
Length: 5.5 mi • Est. 2 h 55 m
Note: Alderfer/Three Sisters Open Space Park is currently closed until further notice due to wildfire operations. For more information, please see https://www.jeffco.us/AlertCenter.aspx?AID=714Show more
#6 - Brother's Lookout and Three Sisters Loop [CLOSED]
Alderfer Three Sisters Open Space Park
moderateYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarGray Star(272)
Length: 2 mi • Est. 1 h 6 m
Note: Alderfer/Three Sisters Open Space Park is currently closed until further notice due to wildfire operations. For more information, please see https://www.jeffco.us/AlertCenter.aspx?AID=714Show more
#7 - Evergreen Mountain West, Summit, and East Trail Loop [CLOSED]
Alderfer Three Sisters Open Space Park
moderateYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarGray Star(250)
Length: 5.3 mi • Est. 2 h 49 m
Note: Alderfer/Three Sisters Open Space Park is currently closed until further notice due to wildfire operations. For more information, please see https://www.jeffco.us/AlertCenter.aspx?AID=714Show more
#8 - Three Sisters and Little Brother Trails [CLOSED]
Alderfer Three Sisters Open Space Park
easyYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarGray Star(122)
Length: 2.5 mi • Est. 1 h 14 m
Note: Alderfer/Three Sisters Open Space Park is currently closed until further notice due to wildfire operations. For more information, please see https://www.jeffco.us/AlertCenter.aspx?AID=714Show more
#9 - Hidden Fawn and Three Sisters Loop [CLOSED]
Alderfer Three Sisters Open Space Park
moderateYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarGray Star(155)
Length: 2.4 mi • Est. 1 h 16 m
Note: Alderfer/Three Sisters Open Space Park is currently closed until further notice due to wildfire operations. For more information, please see https://www.jeffco.us/AlertCenter.aspx?AID=714Show more
#10 - Brother’s Lookout [CLOSED]
Alderfer Three Sisters Open Space Park
easyYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarGray Star(224)
Length: 1.3 mi • Est. 45 m
Note: Alderfer/Three Sisters Open Space Park is currently closed until further notice due to wildfire operations. For more information, please see https://www.jeffco.us/AlertCenter.aspx?AID=714Show more
Showing results 1 - 10 of 25