National Assessment of Oil and Gas Project - Yukon Flats Assessment Area (002) Boundary

The USGS Central Region Energy Team assesses oil and gas resources of the United States. The onshore and State water areas of the United States comprise 71 provinces. Within these provinces, Total Petroleum Systems are defined and Assessment Units are defined and assessed. Each of these provinces is defined geologically, and most province boundaries are defined by major geologic changes. The Yukon Flats Assessment Area is located in east-central Alaska, encompassing part of Yukon-Koyukuk Census Area County in Alaska. The main population centers within the study area are Fort Yukon, Venetie, Stevens Village, and Beaver, Alaska. The main highways, State Route 4 and the Trans-Alaska Pipeline System crosses the western tip of the Yukon Flats Assessment Area and State Route 6 enters the Yukon Flats Assessment Area near the south-east corner approximately 7 km east of Miller House Alaska, and travels north-east to Circle, Alaska on the Yukon River. The Yukon River and Porcupine River and their tributaries drain the area. For this study the Yukon Flats Assessment Area is a region of low, forested hills and flatlands with numerous streams and lakes, situated generally to the east of the Trans-Alaska Pipeline System. The assessment area boundary was drawn to include the geologic structures generally considered to be in or bounding the Yukon Flats Assessment Area.