Alderfer/Three Sisters

• All users of Jeffco parks (both free trips and paid for courses) must carry with them a copy of the CMC-Jeffco Permit or a yellow permit tag 
• The permit can be found at this link
• Permit tags can be picked up at the CMC Basecamp office (T-Th 10am-6pm) 
• ONLY ONE GROUP may use a trail system at a time. Group size is limited to 14 participants, including guides/instructors. 
• A trail system includes that entire area of that park - ie, if a group begins a hike on the east side of North Table, another group may not hold another hike on the west side of North Table.

• Blackout dates - No CMC trips may take place on the following dates: 
• Memorial Day Weekend - May 24-26; Father’s Day – June 15;  Juneteenth – June 19; Independence Day Weekend – July 4-6; Labor Day Weekend – Aug 30-Sept 1 

For further information and any restrictions see:  Alderfer / Three Sisters Park | Jefferson County, CO (jeffco.us)

Directions to parking lot (East TH): 30357 Buffalo Park Rd - Google Maps

Directions to parking lot (West TH): 5136 S Le Masters Rd - Google Maps

From the East Trailhead you can access: 

• Evergreen Mountain East, Wild Iris and Three Sisters Loop - 7.1 miles - 1200 ft elevation gain
• Evergreen Mountain via East and West Trail Loop - 5.5 miles - 1043 ft elevation gain
• Hidden Fawn to Mount Muhly Trail Loop - 6.9 miles - 1112 ft elevation gain
• Hidden Fawn and Bearberry Trail - 3.6 miles - 564 ft elevation gain
• Sisters, Mountain Muhly, Homestead, Silver Fox, and Ponderosa Loop - 5.2 miles - 879 ft elevation gain

• Suitable Activities: Hiking, Snowshoeing
• Seasons: Year-round
• Weather: View weather forecast

• Land Manager: Jefferson County Open Space
• Parking Permit Required: Other
• Recommended Party Size: 12
• Maximum Party Size: 14
• Maximum Route/Place Capacity: 14