Thick-seam mining in the western United States--geological considerations

D. L. Boreck

Multislice mining for thick western coal seams

T. D. Hackett

Coalbed methane study of the 'Anderson' coal deposit, Johnson County, Wyoming

D. L. Boreck

Colorado coal reserves depletion data and coal mine summaries

D. L. Boreck

Effects of remote drop and pumpdown placement on cellular concrete

D. L. Boreck

Western slope Colorado, Western Colorado and Eastern Utah

Rudy C. Epis

Colorado coal analyses, 1975 (analyses of 64 samples collected in 1975)

Colorado Geological Survey