Location and surroundings
Round Mountain is in the Round-Gee-Deer range of the North Cascades, part of the Cascade Range in Washington, United States. It lies in Skagit County and is managed within the Mount Baker-Snoqualmie National Forest. In its range it is the highest of 14 named peaks, and it is the range high point. The mountain sits in a steep, forested part of the western North Cascades, where ridges drop into deep valleys and the upper slopes turn to alpine rock and scrub.
Neighbouring peaks
- Mount Higgins — 1,535 m, 1.6 km SW
- Skadulgwas Peak — 1,485 m, 2.6 km SW
- Finney Peak — 1,550 m, 6.1 km N
- North Mountain — 1,161 m, 10.9 km E
- French Peak — 1,334 m, 11.6 km S
- Gee Point — 1,464 m, 12.7 km NW
- Big Deer Peak — 1,237 m, 13.6 km NW
- Mount Ditney — 1,343 m, 13.8 km S
These nearby summits show how isolated Round Mountain is above the surrounding country. Several close peaks are lower, while the nearest higher peak is farther away to the south-southeast, so the mountain has a strong local rise and clear topographic independence.
The view from the summit
From Round Mountain, the highest peaks within 25 km include Whitehorse Mountain to the south-southeast at 13.9 km, Three Fingers to the south at 18.0 km, and Mount Bullen also to the south at 15.0 km. To the northeast are Illabot Peaks at 23.3 km, while Prairie Mountain lies to the east at 21.4 km and Jumbo Mountain to the southeast at 18.3 km. These are the main high points that shape the wider skyline around the summit.
The range
Round Mountain belongs to the Round-Gee-Deer range, whose high point is Round Mountain itself. The range contains 14 named peaks, and the mountain ranks first by elevation among them. In the wider hierarchy it sits within the North Cascades, then the Cascade Range, the Pacific Coast Ranges, and the North American Cordillera. Its prominence and position make it the defining summit of that small range.
Climate and weather
Climate data for the summit are estimates from NASA POWER climate data for 2001–2020. The warmest month is July, with a mean temperature of about 10 °C, and the coldest is December, at about -4 °C. Mean temperatures are above freezing from April through October. Around the mountain, annual precipitation is about 2,050 mm, with the wettest month in November at about 320 mm and the driest in July at about 35 mm. Expect wet winters, snow, cloud, and rapid weather changes typical of the western Cascades.
Best time to visit
For a summit at 1,616 m in the western North Cascades, the most practical season is usually late spring through early autumn, when temperatures are more often above freezing and the snowpack is lower. The climate figures show the summit averaging above 0 °C from April to October, with the driest period in July. Even then, weather can change quickly, and lingering snow, wet rock, fog, and wind remain common hazards.
Nature and wildlife
The slopes around Round Mountain reflect the usual west-side Cascade pattern: dense conifer forest at lower elevations, then subalpine trees, heather, rock, and open alpine ground higher up. The area lies within the Mount Baker-Snoqualmie National Forest, so wildlife typical of the region may include deer, black bear, mountain goats, and many forest birds. Above treeline, the terrain becomes more exposed, with snowfields persisting into the warmer months on shaded aspects.
Guides and organised ascents
For a peak like Round Mountain, a certified guide is usually not required for experienced hikers or scramblers, but it can be useful if you are unfamiliar with steep forest travel, route-finding, or early-season snow. In the United States, the national mountain guide association is the American Mountain Guides Association, an IFMGA/UIAGM member, and the national alpine club is the American Alpine Club. Examples of established guiding companies in the country include RMI Expeditions in Ashford, Washington, and Exum Mountain Guides in Moose, Wyoming. A guided ascent usually depends on the number of days, group size, snow conditions, and equipment needs.
Safety and preparation
Round Mountain demands preparation for steep terrain, wet weather, and changing conditions. In the North Cascades, trails and slopes can be muddy, brushy, or snow-covered well into the season, and visibility can drop quickly in cloud or rain. Carry layers, navigation tools, and enough food and water for a full day. For mountain rescue in the United States, the emergency number is 911; dispatchers alert the local search and rescue team, usually through the county sheriff or a national park system.
History and name
Round Mountain is known for its strong prominence and for being the highest summit in the Round-Gee-Deer range. The name is descriptive and fits the rounded profile of the mountain as seen from nearby ridges and valleys. It also drains into tributaries of the Stillaguamish River, linking the summit area to the broader watershed of the western North Cascades.
Interesting facts
Round Mountain is the highest of 14 named peaks in the Round-Gee-Deer range and the range high point. Its prominence is 1,475 m, which makes it the most prominent mountain in Skagit County. The nearest higher peak is Whitehorse Mountain, about 12.63 km to the south-southeast. That combination of local dominance and isolation is unusual for a summit of this height in the western Cascades.
FAQ
How high is Round Mountain? It rises to 1,616 m.
Where is Round Mountain located? It is in Skagit County, Washington, in the United States, within the North Cascades.
What range is Round Mountain part of? It belongs to the Round-Gee-Deer range, inside the Mountain Loop Area of the North Cascades.
What are the nearest peaks to Round Mountain? The closest listed peaks are Mount Higgins 1.6 km southwest, Skadulgwas Peak 2.6 km southwest, and Finney Peak 6.1 km north.
Is there water on the way to Round Mountain? Expect to carry your own supply. In this terrain, water sources may be seasonal and snowmelt-based, so plan for about 1.5 to 3 litres for a day, depending on heat and route length.
Are there huts on Round Mountain? 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 is mobile phone coverage on Round Mountain? There are 2 communication masts mapped within 10 km, with the nearest about 4.3 km east. On an open summit a signal is likely, but it can fail in deep valleys or behind ridges. 112 reaches emergency services over any available network, and maps should be downloaded before setting out.