Field station locations and magnetic susceptibility data collected in 2025 for the Steese Project, Yukon-Tanana Uplands, Alaska

Field station locations and magnetic susceptibility data collected in 2025 for the Steese Project, Yukon-Tanana Uplands, Alaska, Raw Data File 2025-28, provides locations, rock descriptions, and magnetic susceptibility measurements collected during DGGS's 2025 bedrock-mapping campaign in the Yukon-Tanana Uplands of eastern Interior Alaska. Geologists mapped at 1:100,000 scale across parts of the Big Delta, Circle, Fairbanks, and Livengood quadrangles, concentrating most fieldwork within the Steese project boundary. The 2025 campaign builds on earlier 1:250,000-scale mapping, several detailed geologic studies, and ongoing DGGS-USGS collaboration to modernize and refine geologic data across the Yukon-Tanana Uplands. The U.S. Geological Survey (USGS) identified the map area as prospective for rare-earth elements (REEs) and other critical and non-critical mineral resources, prompting renewed attention to their mineral potential. These data are provided as a Raw Data File under an open end-user license and are available on the DGGS website: http://doi.org/10.14509/31736.

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Organization: State of Alaska