The data displayed below were collected during a joint project between the following departments at Montana Tech of The University of Montana: Geophysical Engineering and the Montana Bureau of Mines and Geology. The samples represent sandstones collected and analyzed for their potential use as proppant material.

General Information
Reference Rose, R.R., 1967, Stratigraphy and structure of part of the southern Madison Range, Madison and Gallatin Counties Montana: Oregon State University, M.S. thesis, 172 p.
Notes
Measured Section Details
Unit Symbol Name Township Range Section 1/4 Section Location Latitude Longitude Geomethod Datum Page Number Sub Unit Id Sandstone Description Grain Size Cementation Roundness Sorting Thickness (ft) Suitability
kk Kootenai Formation Early Cretaceous 09S 02E 13 AA Northeast of Tumble down Creek 45.055725901 -111.4157129755 TRS-SEC NAD83 148 1 Sandstone- pinkish brwon when fresh, weathers yellow buff to gray,thin interbeds fo siltstone, ripple marks very fine 12.6 no
kk Kootenai Formation Early Cretaceous 09S 02E 13 AA 45.055725901 -111.4157129755 TRS-SEC NAD83 148 2 sandstone- weathers yellow, quartz arenite, thicker beds at the top, ripple marks, mud cracks andwoodfragments. very fine 45 probably not
kk Kootenai Formation Early Cretaceous 09S 02E 13 AA 45.055725901 -111.4157129755 TRS-SEC NAD83 149 9 sandstone- weathering yellow buff, conglomeritic in places, cross-laminated, brown phosphatic sandstone is present near the middle very fine calcareous 33.700000000000003 no
kk Kootenai Formation Early Cretaceous 09S 02E 13 AA 45.055725901 -111.4157129755 TRS-SEC NAD83 149 10 sandstone-weathers yellowish-tan, quartzose, scattered balck chert pebbles present, fractured forms slopes medium calcareous 5.2000000000000002 yes
*q Quadrant Formation: Pennsylvanian 09S 04E 3 B West of U.S. highway 191 at Pulpit Rock 45.08344957825 -111.2249948345 TRS-SEC NAD83 158 1 sandstone: white, quartz arenite top 1' not calcareous very fine calcareous 11.699999999999999 no
*q Quadrant Formation: Pennsylvanian 09S 04E 3 B 45.08344957825 -111.2249948345 TRS-SEC NAD83 158 2 sandstone: dirty white, cross-laminated with current movement from north to south, fractured at right angles to the bedding. very fine noncalcareous, porous 39 probably not
*q Quadrant Formation: Pennsylvanian 09S 04E 3 B 45.08344957825 -111.2249948345 TRS-SEC NAD83 159 3 sandstone: white slightly calcareous 32.200000000000003 maybe
*q Quadrant Formation: Pennsylvanian 09S 04E 3 B 45.08344957825 -111.2249948345 TRS-SEC NAD83 159 4 sandstone- white, well cross bedded, some iron concretions calcareous 40 maybe
*q Quadrant Formation: Pennsylvanian 09S 04E 3 B 45.08344957825 -111.2249948345 TRS-SEC NAD83 159 5 sandstone- yellowish-white very fine calcareous well sorted 22.5 probably not
*q Quadrant Formation: Pennsylvanian 09S 04E 3 B 45.08344957825 -111.2249948345 TRS-SEC NAD83 159 6 sandstone- white, cross laminated, bedding lines visible due to weatehring and solution calcareous 41.799999999999997 maybe
*q Quadrant Formation: Pennsylvanian 09S 04E 3 B 45.08344957825 -111.2249948345 TRS-SEC NAD83 159 7 sandstone- grayish-white, weathers yellow buff, cross laminated, scattered chert nodules. At the base there is a 4' cavernous, calcareous sandstone with cacite filled voids very fine calcareous 34 no
_f Flathead Formation: Early Middle Cambrian 09S 02E 25 B South of Tyler Fork 45.0249882621 -111.4286091985 TRS-SEC NAD83 170 2 sandsgtone- pinkish and glauconitic, quartzitic fine calcareous 1.2
_f 09S 02E 25 B South of Tyler Fork 45.0249882621 -111.4286091985 TRS-SEC NAD83 170 4 sandstone- limonitic, glauconitic, quartz arenite, glauconite forms laminations fine to medium calcareous 1.3
_f 09S 02E 25 B South of Tyler Fork 45.0249882621 -111.4286091985 TRS-SEC NAD83 170 6 sandstone-limonitic, glauconitic, quartz arenite, cross bedded, coarser grains found in lenses fine calcareous subangular to rounded 3
_f 09S 02E 25 B South of Tyler Fork 45.0249882621 -111.4286091985 TRS-SEC NAD83 170 8 sandstone- orange buff, quartz arenite, lode casts present, with green micaceous shale interbeds very fine calcareous 2 no
_f 09S 02E 25 B South of Tyler Fork 45.0249882621 -111.4286091985 TRS-SEC NAD83 170 11 sandstone- deep red, contains samll lenses of buff-green sandstone very fine calcareous 2.2999999999999998 no
_f 09S 02E 25 B South of Tyler Fork 45.0249882621 -111.4286091985 TRS-SEC NAD83 170 12 sandstone- buff, grades above and below into deep red sandstone very fine calcareous 1 no
_f 09S 02E 25 B South of Tyler Fork 45.0249882621 -111.4286091985 TRS-SEC NAD83 170 13 sandstone-deep red, grades laterally into green and buff sandstones very fine calcareous 0.29999999999999999 no
_f 09S 02E 25 B South of Tyler Fork 45.0249882621 -111.4286091985 TRS-SEC NAD83 170 14 sandstone- orange buff, quartz arenite, scattered amber quartzite pebbles at base, scattered green clay very fine calcareous 0.5 no