Quality assessment of strippable coals in northwestern New MexicoGretchen K. Hoffman · First published 1993Open the Tome
Quality assessment of strippable coals in New Mexico, year III, phase II, Menefee and Crevasse Canyon, and Moreno Hill formation coals in the San Juan Basin of northwestern New Mexico and the Salt Lake coal field, west-central New MexicoGretchen K. Hoffman · First published 1989Open the Tome
Coal deposits and facies changes along the southwestern margin of the Late Cretaceous seaway, west-central New MexicoGretchen K. Hoffman, Orin J. Anderson, E. A. Beaumont · First published 1987Open the Tome
Quality assessment of strippable coals in New Mexico, year II, phase II, Fruitland, Menefee, and Crevasse Canyon Formation coals in the San Juan Basin of northwestern New MexicoGretchen K. Hoffman · First published 1987Open the Tome
Quality assessment of strippable coals in New Mexico, year I, phase II, Fruitland and Cleary coals in the San Juan Basin of northwestern New MexicoGretchen K. Hoffman · First published 1986Open the Tome