1971 Map of Chandler Lake A-1

About this map

The Continental Divide cuts across this high-altitude landscape of the Brooks Range, separating the northward-flowing Itkillik River from the headwaters of the North Fork Koyukuk River which trends toward the south. The terrain is dominated by the massive Oolah Valley and Itkillik Valley, where the drainage patterns illustrate the region's complex glacial and geological history. Evidence of human presence in this remote Arctic wilderness is sparse, marked only by a single Cabin near a small lake. Prominent peaks including Oolah Mountain, Snowwheel Mountain, and Oxadak Mountain flank the deep valleys. The map also records the South Boundary Umiat Meridian, providing a critical reference point for early 1970s land management and surveying in the North Slope region.