Location and surroundings
Siniktanneyak Mountain is part of the chain North American Cordillera > Alaska-Yukon Ranges > Brooks Range > De Long Mountains. It is in Alaska, United States, within North Slope Borough. In the De Long Mountains it is the 2nd highest named peak, and the range high point is De Long Mountains itself. The terrain around the summit is high Arctic mountain country, with open slopes, broad ridges and sparse vegetation shaped by cold, wind and a short growing season.
Neighbouring peaks
- Collins Peak — peak, elevation unknown, 36.1 km west.
- Mount Bupto — 1,252 m, 43.7 km northeast.
- Swayback Mountain — 687 m, 46.9 km north.
- Swayback Mountain — 623 m, 47.6 km northeast.
- Rim Butte — 1,010 m, 51.3 km northeast.
- Kavaksurak Mountain — 1,288 m, 59.0 km east.
- Howard Pass — mountain pass, elevation unknown, 65.8 km east.
- Etigonik Mountain — 549 m, 68.4 km north.
Among these nearby landforms, Siniktanneyak Mountain is higher than the listed surrounding peaks except for the unnamed-elevation Collins Peak, and it sits well above the lower hills and passes that ring the De Long Mountains.
The view from the summit
The nearest named high points in the surrounding country are farther away: Mount Bupto lies 43.7 km to the northeast, and Kavaksurak Mountain is 59.0 km to the east. From the top, the broader view would be over the De Long Mountains and the open uplands of the western Brooks Range rather than to nearby higher summits.
The range
Siniktanneyak Mountain belongs to the De Long Mountains, a subrange of the Brooks Range in the Alaska-Yukon Ranges. The range high point is Thunder Mountain at 1,492 m, about 79 km west of Siniktanneyak Mountain. The De Long Mountains contain 50 named peaks, and Siniktanneyak Mountain ranks 2nd highest among them. That makes it one of the main summits of the range, though still below Thunder Mountain.
Climate and weather
Climate estimates from NASA POWER for 2001–2020 suggest that the summit is cold for most of the year. The warmest month is July, at about 5 °C, while January is the coldest month, at about -28 °C. Mean temperatures above freezing are limited to June, July and August. Around the mountain, annual precipitation is about 550 mm, with the wettest month in July at about 90 mm and the driest in January at about 20 mm.
Weather in this part of Alaska can change quickly, with cold wind, fog, rain in summer and snow at any time of year. Even in the warm season, exposed ridges can feel much colder than the valley climate suggests.
Best time to visit
The most practical window is the short summer period, when the summit is above freezing in June, July and August. Those months also offer the mildest temperatures and the best chance of snow-free ground on lower slopes. July is the wettest month, so travel can still be damp and boggy in places, while shoulder seasons are much colder and more winter-like. For a climb in this region, visitors usually plan for a brief summer season and remain ready for snow, wind and poor visibility.
Nature and wildlife
The mountain sits in a remote Arctic-alpine landscape of rock, tundra and sparse vegetation. Lower ground in the region can support mosses, lichens, sedges and low shrubs, while higher slopes become increasingly bare and exposed. Wildlife in northern Alaska may include caribou, foxes, birds of prey and other cold-region species, with animals moving widely across the open country. Protected areas near the summit include Noatak Wilderness Area and Noatak National Preserve, which help preserve the wild character of the surrounding land.
Guides and organised ascents
For a remote peak like Siniktanneyak Mountain, a certified guide is most useful for visitors who want help with logistics, route choice and travel in isolated terrain. 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 working in the mountains of the country include RMI Expeditions and Exum Mountain Guides. Guided trips usually depend on the number of days, group size and equipment needs; for remote Arctic terrain, self-sufficiency remains important.
Safety and preparation
This is a cold, remote mountain where weather, navigation and exposure matter more than technical difficulty. Summer can still bring snow patches, wet ground, wind and low cloud, and the long distances between settlements mean that self-rescue skills and careful planning are important. Carry clothing for rapid weather changes, a map and compass or GPS, and enough food and water for a full day or longer if conditions slow progress. The emergency number in the United States is 911; dispatchers alert the local search and rescue team.
Interesting facts
Siniktanneyak Mountain is the 2nd highest named peak in the De Long Mountains. The highest peak of the range is Thunder Mountain, 79 km to the west. The mountain is also the highest point in its immediate local prominence group among the listed nearby peaks, with Mount Bupto and Kavaksurak Mountain both lower. Its position in North Slope Borough places it in one of the most remote parts of Alaska.
FAQ
How high is Siniktanneyak Mountain? It rises to 1,379 m.
Where is Siniktanneyak Mountain? It is in North Slope Borough, Alaska, in the United States, within the De Long Mountains of the Brooks Range.
Is Siniktanneyak Mountain the highest mountain in the De Long Mountains? Yes. It is the highest mountain in the De Long Mountains, and Thunder Mountain is the higher peak of the range overall, 79 km to the west.
What are the nearest peaks to Siniktanneyak Mountain? The closest listed summit is Collins Peak, 36.1 km west. Other nearby peaks include Mount Bupto, Rim Butte and Kavaksurak Mountain.
Is there water on the way to Siniktanneyak Mountain? In this Arctic-alpine terrain, water is usually from snowmelt, wet ground or small streams after thaw. Treat any natural water before drinking, and carry about 1.5-3 litres for a day depending on heat and route length.
Are there huts on Siniktanneyak 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 do I get help in an emergency? Call 911. It connects to emergency services, and dispatchers alert local search and rescue.
Will my phone work on Siniktanneyak Mountain? Coverage in the hills is patchy and depends on the operator. On an open summit it may be possible to get a signal, but deep valleys and ridges can block it. 112 reaches emergency services over any available network, and maps should be downloaded before setting out.