Light yellowish gray to light gray, vuggy, partly thinly laminated, locally tuffaceous or silty limestone. Along Snowcrest Range fault, southwestern Montana.
State Montana
Name Tufa
Geologic age Quaternary and Tertiary
Lithologic constituents
Sedimentary > Carbonate > Limestone (Tuffaceous)locally tuffaceous or silty limestone

Vuke, S.M., Porter, K.W., Lonn, J.D., and Lopez, D.A., 2007, Geologic Map of Montana - Compact Disc: Montana Bureau of Mines and Geology: Geologic Map 62-C, 73 p., 2 sheets, scale 1:500,000. This map was digitized in 2012 as a result of a contract between the U.S. Geological Survey and the Montana Bureau of Mines and Geology.

NGMDB product
Counties Beaverhead - Madison