Evaluation of Coal Resources in the Eastern Part of the Fort Peck Indian Reservation, Montana

摘要

As part of a program to assess mineral resources in selected Indian lands, the coal resource investigation in the Fort Peck Indian Reservation was conducted by the U.S. Geological Survey in cooperation with the Bureau of Indian Affairs. The report represents the part of the study that deals with the evaluation of lignitic coal resources in the eastern part of the Fort Peck Indian Reservation. The coal resources were calculated using computerized techniques in a 1,000-sq mi area underlain by the coal-bearing Paleocene Fort Union Formation. For the study the objectives of the resource calculation were to estimate the coal resources of 15 potentially recoverable coal beds in the Fort Union Formation within the limitations of the available data. The coal resource values presented in the paper were calculated using NCRDS (National Coal Resources Data System).