| Lulu Mountain | |
| Elevation Ft: | 12217 |
| Elevation Ref: | [1] |
| Prominence Ft: | 887 |
| Isolation Mi: | 1.63 |
| Parent Peak: | Mount Richthofen (12,945 ft) |
| Country: | United States |
| State: | Colorado |
| Region: | Grand County / Jackson County |
| Region Type: | County |
| Part Type: | Protected area |
| Part: | Rocky Mountain National Park |
| Range: | Rocky Mountains Never Summer Mountains |
| Map: | Colorado#USA |
| Label Position: | right |
| Coordinates: | 40.4801°N -105.8625°W |
| Coordinates Ref: | [2] |
| Topo: | USGS Fall River Pass |
| Rock: | Andesite breccia[3] |
| Age: | Oligocene |
| Easiest Route: | via Thunder Pass[4] |
Lulu Mountain is a 12217feet summit in Colorado, United States.
Lulu Mountain is situated on the Continental Divide along the boundary shared by Grand County and Jackson County. It is the 20th-highest peak of the Never Summer Mountains which are a subrange of the Rocky Mountains.[5] The mountain is situated on the boundary that Rocky Mountain National Park shares with Medicine Bow–Routt National Forest.[6] Precipitation runoff from the mountain's north slope drains into the headwaters of the Michigan River, whereas the south slope drains into headwaters of the Colorado River except for a portion which is diverted by the Grand Ditch. Topographic relief is significant as the summit rises 2600abbr=offNaNabbr=off above the Colorado River in 1.75miles and 1400abbr=offNaNabbr=off above the Michigan River in one-half mile (0.8 km).
According to the Köppen climate classification system, Lulu Mountain is located in an alpine subarctic climate zone with cold, snowy winters, and cool to warm summers.[7] Due to its altitude, it receives precipitation all year, as snow in winter and as thunderstorms in summer, with a dry period in late spring. Climbers can expect afternoon rain, hail, and lightning from the seasonal monsoon in late July and August.
The mountain is immediately north of the mining boom town of Lulu City that sprang up in 1880 and was abandoned by 1886. The town was built primarily by the Middle Park and Grand River Land Improvement Company which was backed by Benjamin Franklin Burnett of Fort Collins. The town was named by Burnett for his daughter, Lulu, who was considered quite beautiful in her youth.[8] [9] At the recommendation of the US Forest Service, the mountain's toponym was officially adopted in 1929 by the United States Board on Geographic Names.[2]
Lulu Mountain is a remnant of a volcano which erupted approximately 28 million years ago.[4] The rock is composed of andesite breccia.