TY - RPRT TI - Preliminary estimate of coal resources in the Gillette coalfield affected by the location of the Burlington Northern/Union Pacific joint mainline railroad AU - Timothy J. Rohrbacher AU - Jon E. Haacke AU - David C. Scott AU - Lee M. Osmonson AU - James A. Luppens PY - 2006 DO - 10.3133/ofr20061206 UR - https://pubs.usgs.gov/publication/ofr20061206 ID - ofr20061206 ER -