2023 Map of Demarcation Point C-4 NE

About this map

The Arctic National Wildlife Refuge encompasses this remote stretch of the North Slope, where the drainage systems of the Angun River and Kogotpak River carve through a landscape of wetlands and tundra. To the southeast, the protected expanse of the Mollie Beattie Wilderness begins to rise toward the mountains, bounded by the braided channels of the Aichilik River. This 2023 edition documents the pristine hydrography of the region before any modern road infrastructure has reached this far north. The map provides a critical record of Arctic water patterns, showing how these river systems navigate the coastal plain towards the Beaufort Sea. It serves as a detailed baseline for studying the shifting hydrology and natural boundaries of one of the nation's most significant conservation areas.