Maps showing the extent of mining, locations of mine shafts, adits, air shafts, and bedrock faults, and thickness of overburden above abandoned coal mines in the Boulder-Weld coal field, Boulder, Weld, and Adams Counties, Colorado

Authors=ROBERTS S.B., HYNES J.L., WOODWARD C.L.

Journal/Book_names=Geologic Investigations Series Map I-2735

pages=1 sheet

Publish_year=2001

Publisher=U.S. Geological Survey

Language_of_Text=EN

ISBN=0-607-96002-7

note=大きさ（105 × 145 cm） ; 矩形範囲情報（左下緯度 = 39.8667, 左下経度 = -105.25, 右上緯度 = 40.1333, 右上経度 = -104.8667）

ID=90009009