If you are at the trail and this trail needs the latitude and longitude please click the link below and add it to the Add/Edit Trail Form to give us the information. Click to view your current location on a map.
The Arapaho Pass Trail enters the Indian Peaks Wilderness and climbs for 1.2 miles to the Diamond Lake Trail.
The Diamond Lake Trail forks left from the Arapaho Pass Trail and drops elevation for a half-mile before crossing the North Fork of Middle Boulder Creek. Diamond Lake is located a mile further uphill from the bridge and scenic waterfall. This stretch of trail is on a northeast-facing slope and holds snow long after the Arapaho Pass Trail has melted dry. Turn west on a marked side trail to Diamond Lake.
Continuing straight and passing the turnoff to Diamond Lake, the main trail continues for 2.4 miles, and climbs up to cross the ridge just above tree line. The return to tree line may be difficult to find – watch for rock cairns at the edge of the trees. The Diamond Lake Trail ends at Devils Thumb Trail.
|Permit Info:||This trail lies within the Indian Peaks Wilderness Area:
|Restrictions:||Indian Peak Wilderness restrictions apply:
Fishing and hunting: permitted in accordance with regulations established by the Colorado Parks & Wildlife.
|Closest Towns:||Nederland, Colorado|
|Water:||Lakes and streams; treat water for drinking.|
|Restroom:||Practice Leave No Trace principles|
|Operated By:||U.S. Forest Service|
|Information Center:||Boulder Ranger District, 2140 Yarmouth Ave, Boulder, CO 80301|
From Nederland, head south on Colorado Highway 119 for 0.5 miles. Turn west onto Boulder County Road 130 (signed for Eldora Ski Resort). Stay on the main road through the town of Eldora. Once the pavement ends continue another five miles to the Fourth of July Trailhead. This portion of the road is rough but passable in a passenger car during the summer months. This trailhead is extremely busy, especially on weekends, and parking is limited.
This trail is within the Indian Peaks Wilderness Area, connecting between Arapaho Pass Trail and Devils Thumb Trail, passing by Diamond Lake along the way.
This trail is within the Indian Peaks Wilderness Area, where permits are required for camping June 1 – September 15. Those camped at Diamond Lake must have a permit for a designated campsite.
|Fire Information||Campfires are prohibited year-round.|
- Trail Measurement: 2.6 and 5 Miles
- Compass Latitude: 395930N
- Compass Longitude: 1053835W
- Numeric Latitude: 39.9916536
- Numeric Longitude: -105.6430583
- Elevation in Meters: 3,078 to 3,475
- Elevation in Feet: 10,100 to 11,400
If you have information about this trail please fill out the Add/Edit Trail form.