| Mars Hotel | |
| Elevation Ft: | 4635 |
| Elevation Ref: | [1] |
| Prominence Ft: | 215 |
| Isolation Mi: | 0.3 |
| Map: | Utah#USA |
| Country: | United States |
| State: | Utah |
| Region: | Grand |
| Region Type: | County |
| Part Type: | Protected area |
| Part: | Arches National Park |
| Range: | Colorado Plateau |
| Coordinates: | 38.6287°N -109.5913°W |
| Coordinates Ref: | [2] |
| Topo: | USGS The Windows Section |
| First Ascent: | 1989 |
| Rock: | Entrada Sandstone |
| Age: | Jurassic |
Mars Hotel is a 4635feet summit in Grand County, Utah, United States.
Mars Hotel is located within Arches National Park,[3] and like many of the rock formations in the park, it is composed of Entrada Sandstone, specifically the Slick Rock Member overlaying the Dewey Bridge Member.[4] It is among the first features that the main park road passes by. Topographic relief is significant as the summit rises approximately 250abbr=offNaNabbr=off above the surrounding terrain in 500abbr=offNaNabbr=off laterally. Precipitation runoff from Mars Hotel drains to the nearby Colorado River via Courthouse Wash. The first ascent of the summit was made in March 1989 by Kyle Copeland and Eric Johnson via If I Only Had A Brain rock-climbing route .[5] Mike Baker and Leslie Henderson climbed a new route in 1992 on the east face, Lost in Space (class 5.10+).[2] [6]
According to the Köppen climate classification system, Mars Hotel is located in a cold semi-arid climate zone with cold winters and hot summers.[7] Spring and fall are the most favorable seasons to experience Arches National Park, when highs average 60F80F and lows average 30F50F. Summer temperatures often exceed 100F. Winters are cold, with highs averaging 30F50F, and lows averaging 0F20F. As part of a high desert region, it can experience wide daily temperature fluctuations. The park receives an average of less than 10 inches (25 cm) of rain annually.