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 Gardner, L.S.,1959, Revision of the Big Snowy Group in Central Montana: American Association of Petroleum Geologists, v. 43, no. 2, p. 329-349
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
Jsw Stone House Ranch and State Road 11N 21E 31 Section 31 & 32, T.11 N., R. 21 E. 46.6715259246 -109.1269895 TRS-SEC NAD83 338 141 impure, glauconitic very resistant, friable 5 no
*dp Stone House Ranch and State Road 11N 21E 31 46.6715259246 -109.1269895 TRS-SEC NAD83 338 138 white, gray, pink, clean, quartzitic and cherty in places medium poorly bedded, nodular, friable, porous well 18 yes
*dp Stone House Ranch and State Road 11N 21E 31 46.6715259246 -109.1269895 TRS-SEC NAD83 338 132 white to pink, massive fine non-resistant, calcareous, friable 7 maybe
*dp Stone House Ranch and State Road 11N 21E 31 46.6715259246 -109.1269895 TRS-SEC NAD83 338 131 gray purple, quartzitic at top fine calcareous 5 maybe
*Mt Stone House Ranch and State Road 11N 21E 31 46.6715259246 -109.1269895 TRS-SEC NAD83 339 97 gray - purplish brown, mud cracks and ripples, quartz sand. Bedded with non-calcareous shale. Quartzitic at top fine- medium calcareous subangular - subrounded 6 no
*Mt Stone House Ranch and State Road 11N 21E 31 46.6715259246 -109.1269895 TRS-SEC NAD83 339 95 gray, white, s&p, massive, crossbedded. medium slightly calcareous, porous angular quartz well 4 no
Mk Stone House Ranch and State Road 11N 21E 31 46.6715259246 -109.1269895 TRS-SEC NAD83 341 29 gray/yellow, massive, little bedding, quartz sand fine-medium porous clean subrounded 3 yes
Mk Stone House Ranch and State Road 11N 21E 31 46.6715259246 -109.1269895 TRS-SEC NAD83 341 27 yellow, interbedded with brown quartzitic s.s. fine non-resistant 7 yes
Mk Stone House Ranch and State Road 11N 21E 31 46.6715259246 -109.1269895 TRS-SEC NAD83 341 26 gray/yellow, bedded quartz sand fine-medium calcareous, friable, porous subangular well 3 no
Mk Stone House Ranch and State Road 11N 21E 31 46.6715259246 -109.1269895 TRS-SEC NAD83 341 25 gray/yellow, cavities w/ calcite crystals fine calcareous, friable angular - rounded poorly 6 maybe
Mk Stone House Ranch and State Road 11N 21E 31 46.6715259246 -109.1269895 TRS-SEC NAD83 341 gray, massive, vague bedding medium - fine - large friable subrounded - large rounded poorly 2 maybe
Mk Stone House Ranch and State Road 11N 21E 31 46.6715259246 -109.1269895 TRS-SEC NAD83 341 21 yellow-gray with pink mottlings, impure, quartzitic - silty, bedded fine-medium calcareous rounded to angular poorly 16 no
Mk Stone House Ranch and State Road 11N 21E 31 46.6715259246 -109.1269895 TRS-SEC NAD83 341 19 mottled pink- yellow- gray, well bedded medium -course calcareous, porous larger rounded poorly 28 no
Mk Stone House Ranch and State Road 11N 21E 31 46.6715259246 -109.1269895 TRS-SEC NAD83 342 15 pink, yellow - gray, quartz sand, bedded medium calcareous, non-resistant, friable, porous rounded well 3 yes
Mk Stone House Ranch and State Road 11N 21E 31 46.6715259246 -109.1269895 TRS-SEC NAD83 342 14 light yellow, poorly exposed, quartz sand fine non-resistant, friable, porous well 13 yes
Jsw Stone House Ranch and State Road 11N 21E 32 Section 31 & 32, T.11 N., R. 21 E. 46.67146579275 -109.105975992 TRS-SEC NAD83 338 141 impure, glauconitic very resistant, friable 5 no
*dp Stone House Ranch and State Road 11N 21E 32 46.67146579275 -109.105975992 TRS-SEC NAD83 338 138 white, gray, pink, clean, quartzitic and cherty in places medium poorly bedded, nodular, friable, porous well 18 yes
*dp Stone House Ranch and State Road 11N 21E 32 46.67146579275 -109.105975992 TRS-SEC NAD83 338 132 white to pink, massive fine non-resistant, calcareous, friable 7 maybe
*dp Stone House Ranch and State Road 11N 21E 32 46.67146579275 -109.105975992 TRS-SEC NAD83 338 131 gray purple, quartzitic at top fine calcareous 5 maybe
*Mt Stone House Ranch and State Road 11N 21E 32 46.67146579275 -109.105975992 TRS-SEC NAD83 339 97 gray - purplish brown, mud cracks and ripples, quartz sand. Bedded with non-calcareous shale. Quartzitic at top fine- medium calcareous subangular - subrounded 6 no
*Mt Stone House Ranch and State Road 11N 21E 32 46.67146579275 -109.105975992 TRS-SEC NAD83 339 95 gray, white, s&p, massive, crossbedded. medium slightly calcareous, porous angular quartz well 4 no
Mk Stone House Ranch and State Road 11N 21E 32 46.67146579275 -109.105975992 TRS-SEC NAD83 341 29 gray/yellow, massive, little bedding, quartz sand fine-medium porous clean subrounded 3 yes
Mk Stone House Ranch and State Road 11N 21E 32 46.67146579275 -109.105975992 TRS-SEC NAD83 341 27 yellow, interbedded with brown quartzitic s.s. fine non-resistant 7 yes
Mk Stone House Ranch and State Road 11N 21E 32 46.67146579275 -109.105975992 TRS-SEC NAD83 341 26 gray/yellow, bedded quartz sand fine-medium calcareous, friable, porous subangular well 3 no
Mk Stone House Ranch and State Road 11N 21E 32 46.67146579275 -109.105975992 TRS-SEC NAD83 341 25 gray/yellow, cavities w/ calcite crystals fine calcareous, friable angular - rounded poorly 6 maybe
Mk Stone House Ranch and State Road 11N 21E 32 46.67146579275 -109.105975992 TRS-SEC NAD83 341 gray, massive, vague bedding medium - fine - large friable subrounded - large rounded poorly 2 maybe
Mk Stone House Ranch and State Road 11N 21E 32 46.67146579275 -109.105975992 TRS-SEC NAD83 341 21 yellow-gray with pink mottlings, impure, quartzitic - silty, bedded fine-medium calcareous rounded to angular poorly 16 no
Mk Stone House Ranch and State Road 11N 21E 32 46.67146579275 -109.105975992 TRS-SEC NAD83 341 19 mottled pink- yellow- gray, well bedded medium -course calcareous, porous larger rounded poorly 28 no
Mk Stone House Ranch and State Road 11N 21E 32 46.67146579275 -109.105975992 TRS-SEC NAD83 342 15 pink, yellow - gray, quartz sand, bedded medium calcareous, non-resistant, friable, porous rounded well 3 yes
Mk Stone House Ranch and State Road 11N 21E 32 46.67146579275 -109.105975992 TRS-SEC NAD83 342 14 light yellow, poorly exposed, quartz sand fine non-resistant, friable, porous well 13 yes
*dp Road Canyon Section 11N 21E 31 Section 31., T. 11 N., R. 21 E., Golden Valley County 46.6715259246 -109.1269895 TRS-SEC NAD83 343 30 white- pink, massive, clean medium slightly calcareous subangular faceted quatrz sand well 6 maybe
*dp Road Canyon Section 11N 21E 31 46.6715259246 -109.1269895 TRS-SEC NAD83 343 23 white- pink, clean quartz sand fine- medium resistant porous well 9 yes