TY - RPRT TI - Preliminary integrated geologic map databases for the United States: Digital data for the reconnaissance geologic map of the lower Yukon River region, Alaska AU - Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey PY - 2006 DO - 10.3133/ofr20061292 UR - https://pubs.usgs.gov/publication/ofr20061292 ID - ofr20061292 ER -