- Pitkin1
- Rocky Mountain National Park and vicinity, Longs Peak valley1
- Rocky Mountain National Park, 3 1/2 miles WSW of Allenspark, woods on slope above Finch Lake1
- Rocky Mountain National Park, Alpine Bighorn Flats, Tonahutu Trail1
- Rocky Mountain National Park, Longs Peak, Larkspur Creek1
- Rocky Mountain National Park, Longs Peak, West Face1
- Rocky Mountain National Park, from Milner Pass to Lake Irene1
- Route 361 to Camp Bird Mine, San Juan Mts., ca. 5 miles SW Ouray1
- SE of 4th of July Mine, trail to Arapaho Pass, 8½ miles NW of Eldora1
- San Miguel1
- Sand Beach Lake Trail, Wild Basin, 2½ miles W. COPELAND LAKE, Rocky Mountain National Park1
- Shore of beaver pond at edge willow bog along Woods Landing Rd., 3 miles N. of CHAMBERS LAKE1
- South Fork of Middle Boulder Creek, 0.6 mile west of Hessie, 2.6 miles west-northwest of Eldora1
- Summit1
- Within 100 miles of Canyon City1
- below Tolland1
- below waterfall northwest of Diamond Lake, 8 miles northwest of Eldora1
- collected mostly within 100 miles of Canyon City1
- collected mostly within 100 miles of Canyon City, southern Colorado1
- edge of Quale Creek, near mine, Steven's Gulch, 5 miles southwest of Silver Plume1