TY - RPRT TI - Gravity and Aeromagnetic Gradients within the Yukon-Tanana Upland, Black Mountain Tectonic Zone, Big Delta Quadrangle, east-central Alaska AU - R. W. Saltus AU - W. C. Day PY - 2006 DO - 10.3133/ofr20061391 UR - https://pubs.usgs.gov/publication/ofr20061391 ID - ofr20061391 ER -