Niobrara Formation (WYKn;0)

State	Wyoming
Name	Niobrara Formation
Geologic age	Phanerozoic \| Mesozoic \| Cretaceous-Late
Original map label	Kn
Primary rock type	limestone
Secondary rock type	fine-grained mixed clastic
Other rock types
Lithologic constituents	Major Sedimentary > Carbonate > Limestone Sedimentary > Clastic > Mudstone > Shale
Map references	Love, J.D. and Christiansen, Ann Coe, 1985, Geologic Map of Wyoming: U.S. Geological Survey. [http://pubs.er.usgs.gov/publication/ofr83802]
Unit references	Love, J.D. and Christiansen, Ann Coe, 1985, Geologic Map of Wyoming: U.S. Geological Survey. [http://pubs.er.usgs.gov/publication/ofr83802]
Geographic coverage	Albany - Carbon - Converse - Laramie - Natrona - Niobrara