Page Type Page Type: Mountain/Rock
Location Lat/Lon: 38.83190°N / 105.6513°W
Additional Information County: Park
Activities Activities: Hiking
Seasons Season: Spring, Summer, Fall, Winter
Additional Information Elevation: 10090 ft / 3075 m
Sign the Climber's Log


Lela on the rocky summitSPer collardr and my dog Lela on the rocky summit

UN 10090 is one of several southern Park County peaks that are easy to reach the summit of, yet almost guarantee solitude. There’s something about a mountain with no name and no trail that seems to keep the crowds to a minimum. While the slopes of this mountain are largely covered in dense evergreen timber, the long, narrow and rocky summit ridge provides fine views in most directions. A rugged, lichen-covered summit block serves as a fine lunch spot and a restful spot to take in the open views.

Rank: 2261st highest peak in Colorado
Prominence: 510 feet
USGS Quad: Dicks Peak

Rank and Prominence Source: Lists of John

Getting There

UN 10090_Getting There

UN 10090 is west of CO Hwy 9, roughly 15 miles south of the town of Hartsel (which is located at the intersection of CO Hwy 9 and US Hwy 24). The peak is in far southern Park County near Thirtynine Mile Mountain, about 8 miles as the crow flies southwest of Eleven Mile Reservoir.

CO Rd 108_Route Map

Hwy 108 Route

Roundtrip Distance: 2 2/3 miles
Elevation Gain: 725 feet
YDS Rating: Class 2

Driving Directions

From Hartsel, Colorado, near the intersection of US Hwy 24 and CO Hwy 9
• Follow CO Hwy 9 south for approximately 15 miles.
• Turn right / southwest on Park County Road 108.
• Park at this intersection (snow season) or proceed southwest on this road for about ½ mile (snow-free)

Red Tape

Very few rules govern your use of this part of the National Forest. There are privately-held ranches nearby, however; be mindful of avoiding private property. There is no fee to use this part of the National Forest and parking is free.


To the high country beyondTo the high country beyond
Shrouded summit viewsShrouded summit views

Immediately Surrounding the Peak
This peak is close to roadways and clean, reliable water sources are scarce. Camping right near the peak cannot be recommended.

Eleven Mile State Park
Colorado State Parks operates eight campgrounds near the Eleven Mile Reservoir, as well as 25 backcountry campsites accessible by foot or boat only. Visit this site for detailed information.

US Forest Service Campgrounds
The National Forest Service has a large selection of campgrounds in and around the Lake George area.

Campground NameElevationSitesNightly RateReservations?Notes
Blue Mountain8,200 ft.21$12YesLess than 3 miles as the crow flies from the summit of Blue Mountain.
Spruce Grove8,600 ft.27$12NoLet the gurgling Tarryall Creek sing you to sleep.
Twin Eagles8,600 ft.9$8NoMust haul or purify drinking water.
Happy Meadows7,900 ft.8$12NoSituated along the South Platte River.
Round Mountain8,500 ft.16$12YesDrinking water, vault toilet and trash pickup.
Springer Gulch8,300 ft.15$12YesSituated within the Elevenmile Canyon; water, tables, fire grates.
Riverside8,000 ft.19$12YesSituated within Elevenmile Canyon; large grassy meadow with little shade.

Weather & Seasons

Views of the neighborhoodViews of the neighborhood

Summer: The route could be a bit hot and dusty in the summer, but the access roads should be dry and accessible and the breezes on top pleasant.

Spring: The snowpack is less deep here than in the high country and melts out faster than higher areas to the west. None-the-less, expect post-holing through unconsolidated snow drifts in the trees.

Fall: The aspen coating the slopes of this peak and surrounding neighbors make this area a golden-hued heaven in the fall.

Winter: Thanks to proximity to both US Hwy 24 Colorado Hwy 9, as well as to “primary dirt roads”, this peak is accessible year-round, barring a major blizzard. The roads in this area are prone to wind-drifting. Be ready, however, to wallow in deep snow on the densely-timbered slopes.

Zone Forecast for Guffey, CO