TY - RPRT TI - Digital aeromagnetic data and derivative products from a helicopter survey over the town of Blanca and surrounding areas, Alamosa and Costilla Counties, Colorado AU - Viki Bankey AU - V. J. S. Grauch AU - Fugro Airborne Surveys Corporation PY - 2004 DO - 10.3133/ofr20041229b UR - https://pubs.usgs.gov/publication/ofr20041229B ID - ofr20041229B ER -