Location and surroundings
Kelly Butte is located in the United States, within the state of Washington and the district of King County. Geographically, it belongs to the North American Cordillera, Pacific Coast Ranges, Cascade Range, South Washington Cascades, South Cascade Crest, and finally the Huckleberry-Grass. Among the 5 named peaks in the Huckleberry-Grass, Kelly Butte ranks as the highest. The landscape features dense forests, river valleys, and significant topographic relief, with the west aspect dropping sharply toward Rock Creek.
Neighbouring peaks
The surrounding area features several nearby summits and passes that define the local topography. The nearest peaks and passes to Kelly Butte include:
- Colquhoun Peak (peak), 1,568 m, 5.0 km SE
- Huckleberry Mountain (peak), 1,387 m, 6.6 km W
- Bald Mountain (peak), 1,247 m, 7.6 km N
- Pyramid Peak (peak), 1,718 m, 9.1 km SE
- Rooster Comb Mountain (peak), 1,159 m, 10.8 km NW
- Snowshoe Butte (peak), 1,562 m, 11.4 km NE
- Bearpaw Butte (peak), 1,446 m, 12.6 km NE
- Goat Mountain (peak), 1,416 m, 13.0 km N
Compared to these neighbours, Kelly Butte stands out as the culminating high point of its immediate range, while remaining slightly lower than Pyramid Peak, which serves as its nearest higher neighbour to the southeast.
The view from the summit
On clear days, the summit offers sweeping views of the surrounding Cascade Range. Among the prominent high points visible within a 25 km radius are several major peaks. The highest peaks within 25 km include Norse Peak at 2,090 m located 23.8 km S, Slide Mountain at 1,907 m situated 22.6 km S, and Castle Mountain at 1,897 m standing 19.8 km S. Additional visible summits comprise Mutton Mountain at 1,876 m at 15.7 km S, Noble Knob at 1,832 m at 13.7 km S, and Arch Rock at 1,779 m lying 16.1 km SE.
The range
Kelly Butte is part of the Huckleberry-Grass, which represents the narrowest subdivision within the South Cascade Crest, South Washington Cascades, Cascade Range, Pacific Coast Ranges, and the broader North American Cordillera. The range contains 5 named peaks in total, with Kelly Butte holding the position of the highest peak in the range. The high point of the range is Huckleberry-Grass itself, which coincides with the summit elevation of Kelly Butte at 1,650 m.
Climbing routes
Access to the top is primarily achieved via the Kelly Butte Trail, which spans about 1.7 miles and leads directly to the summit. Another frequently utilized approach involves the Kelly Butte Lookout Trail via Forest Service Road 70, starting from nearby areas. These routes offer straightforward walking paths through varied forest flora, including lilies, bear grass, Indian paintbrush, penstemon, arnica, columbine, lupine, phlox, and huckleberry, terminating at the historic lookout tower.
Access and starting points
The usual starting town for visits to the area is Greenwater. From nearby forest roads, travelers can reach the trailhead. OpenStreetMap data notes that there is 1 car park within 2 km of the top, with the nearest located 1.4 km SE. Marked hiking routes over or next to the summit include the Kelly Butte Trail. Additionally, the mountain features the Kelly Butte Lookout tower right on the summit and a viewpoint located 70 m NE, while 3 mobile communication masts are mapped within 10 km, the nearest being 4.4 km N.
Climate and weather
The climate data consists of estimates from NASA POWER covering monthly means from 2001 to 2020, with temperatures adjusted to the summit elevation. The mean temperature at the summit reaches its warmest in August at about 12 °C and drops to its coldest in January at about -5 °C. Precipitation in the surrounding area totals about 1,150 mm a year, with January being the wettest month at about 175 mm and July the driest at about 15 mm. Most weather fronts originate in the Pacific Ocean, moving east toward the Cascade Mountains where orographic lift causes heavy precipitation, particularly winter snowfall on the west side.
Best time to visit
The months with a mean temperature above freezing at the summit are April, May, June, July, August, September, and October. Due to high pressure systems over the Pacific Ocean that intensify during summer, there is frequently little to no cloud cover during these warmer months. Consequently, the months from July through October offer the most favorable and stable weather conditions for climbing and visiting the mountain.
Nature and wildlife
The natural environment around Kelly Butte is characterized by a marine west coast climate supporting dense forest ecosystems and rich alpine flora. Along the hiking trails, visitors can observe a wide variety of plant life including lilies, bear grass, Indian paintbrush, penstemon, arnica, columbine, lupine, phlox, and huckleberry. The area at and near the summit is protected and managed under the Mount Baker-Snoqualmie National Forest, preserving its natural habitats and historical structures.
Guides and organised ascents
While non-technical summer walks up Kelly Butte generally do not require professional guides, mountaineering and alpine expeditions in the United States are supported by established organizations. The national mountain guide association is the American Mountain Guides Association, which is an IFMGA/UIAGM member, while the national alpine club is the American Alpine Club. Established guiding companies operating in the country include RMI Expeditions based in Ashford, Washington, and Exum Mountain Guides in Moose, Wyoming. Visitors should note that permit rules apply to certain peaks in the country, requiring climbing registration or permits from land agencies for specific high-altitude or glacier routes such as Denali or Mount Rainier.
Safety and preparation
Although Kelly Butte is accessible via standard hiking trails, visitors must remain prepared for sudden weather changes typical of the Cascade Range, especially outside the drier summer months. Navigation tools, appropriate clothing, and sufficient water are essential for safety. In the event of an emergency, the general emergency number in the United States is 911, which connects callers to dispatchers who alert local search and rescue teams typically managed by the county sheriff or national park service.
History and name
Kelly Butte has a rich history tied to forest fire monitoring in the Cascade Range. It serves as the site of a historic fire lookout tower originally constructed in 1926 to monitor surrounding timberlands, which has since been restored. The geographical feature's name has been officially adopted by the U.S. Board on Geographic Names, and it is also known by alternative historical or regional designations.
Interesting facts
Kelly Butte holds the distinction of being the highest of 5 named peaks in the Huckleberry-Grass. Its nearest higher peak is Pyramid Peak, standing at 1,718 m some 9.1 km to the southeast. Topographic relief is exceptionally notable on the western aspect, which rises 3,000 feet above Rock Creek over a distance of just one mile. Furthermore, the summit hosts a preserved 1926 fire lookout tower managed within the Mount Baker-Snoqualmie National Forest.
FAQ
How high is Kelly Butte? Kelly Butte has an elevation of 1,650 m.
Where is Kelly Butte located? It is located in the southeast corner of King County in Washington state, United States, within the Cascade Range.
What range does Kelly Butte belong to? It belongs to the Huckleberry-Grass range, which is part of the South Cascade Crest, South Washington Cascades, Cascade Range, Pacific Coast Ranges, and North American Cordillera.
What are the nearest peaks to Kelly Butte? The nearest peaks include Colquhoun Peak, Huckleberry Mountain, Bald Mountain, and Pyramid Peak.
Is there water on the way to Kelly Butte? There are no major mapped springs or streams directly on the trail, so hikers should carry 1.5 to 3 liters of water depending on weather conditions and temperature.
Are there huts on Kelly Butte? OpenStreetMap shows no hut or shelter within 2 km of the top, so hikers usually plan the ascent as a day trip or carry their own tent.
How long does it take to walk up Kelly Butte? Starting from the car park 1.4 km SE of the top at about 1,320 m, the walk covers about 1.8 km on foot with 330 m of height gain, taking roughly 45–65 minutes according to Naismith's rule.
Is there mobile phone coverage on Kelly Butte? Three communication masts are mapped within 10 km, with the nearest 4.4 km N; coverage is generally likely on the open summit with masts in sight, but maps should be downloaded beforehand and 112 reaches emergency services over any available network.