De Long Mountains

The De Long Mountains are a remote mountain subrange of the Brooks Range in northern Alaska, notable for their Arctic alpine terrain and limited human infrastructure.

The area offers rugged, off-trail mountaineering and long-distance wilderness travel rather than developed hiking routes; it attracts specialist parties for scientific research and backcountry expeditions. Scenery includes steep ridges, tundra plateaus and glaciated valleys typical of the broader Brooks Range.

The mountains have been part of the traditional territories used by Alaska Native peoples and were later mapped during federal geological and exploratory surveys; they remain sparsely visited and largely undeveloped.

Situated in northwestern/northern Alaska within the Brooks Range complex, the De Long Mountains lie in a high-latitude, largely roadless region above the Arctic Circle.

• Location and access: Forms part of the western Brooks Range system in northern Alaska and lies well north of the Arctic Circle; access is typically by bush plane or extended overland expedition.
• Environment: The range is remote and largely roadless, providing habitat for Arctic wildlife and serving as a backdrop for scientific and wilderness trips rather than mainstream tourism.