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 |
_f |
Princeton |
08N |
13W |
14 |
C |
SW 1/4 sec. 14, SE 1/4 sec. 15, T. 8 N., R. 13 W. |
46.44327164915 |
-113.1975313995 |
TRS-SEC |
NAD83 |
25 |
|
Tan- gray brown quartzite sandstone, interbedded w/ shale (purple to green, fissile) |
thin to medium bedded |
|
|
|
51 |
no |
_f |
Princeton |
08N |
13W |
14 |
C |
|
46.44327164915 |
-113.1975313995 |
TRS-SEC |
NAD83 |
25 |
|
Thin to massive bedded, tan and brown weathering, snadstone / quartzite |
medium to coarse |
|
|
poorly |
63 |
maybe |
_f |
Princeton |
08N |
13W |
15 |
D |
SW 1/4 sec. 14, SE 1/4 sec. 15, T. 8 N., R. 13 W. |
46.44306201065 |
-113.20780891 |
TRS-SEC |
NAD83 |
25 |
|
Tan- gray brown quartzite sandstone, interbedded w/ shale (purple to green, fissile) |
thin to medium bedded |
|
|
|
51 |
no |
_f |
Princeton |
08N |
13W |
15 |
D |
|
46.44306201065 |
-113.20780891 |
TRS-SEC |
NAD83 |
25 |
|
Thin to massive bedded, tan and brown weathering, snadstone / quartzite |
medium to coarse |
|
|
poorly |
63 |
maybe |
_f |
Silver Hill |
05N |
13W |
34 |
|
sec. 34, T. 5 N., R. 13 W. |
46.14306073705 |
-113.212141472 |
TRS-SEC |
NAD83 |
25 |
|
medium- massive bedded, vitreous quartzite, brown - gray-purple, steep cliffs |
mostly medium, some coarse |
|
subangular - angular |
poorly |
132 |
no |
_f |
Silver Hill |
05N |
13W |
34 |
|
|
46.14306073705 |
-113.212141472 |
TRS-SEC |
NAD83 |
26 |
|
greenish/ purple-gray, cross bedded, thick bedded quartzite |
medium |
|
subangular - angular |
poorly |
22 |
no |
_p |
Hecla |
03S |
11W |
2 |
|
Hecla District sec. 2 T. 3 S., R.11 W. Beaverhead county |
45.6041268725 |
-112.927695971 |
TRS-SEC |
NAD83 |
26 |
|
Greenish gray quartzite |
fine |
|
|
|
24 |
no |
_f |
Hecla |
03S |
11W |
2 |
|
|
45.6041268725 |
-112.927695971 |
TRS-SEC |
NAD83 |
26 |
|
light to dark brownish gray quartzite, interbedded hornfells - litharenite |
medium |
|
|
|
7 |
no |
_f |
Grasshopper Creek |
09S |
11W |
11 |
D |
Cabrian section NW of Armstead in SE 1/4 se 11, T. 9 S., R. 11 W. |
45.0628141416 |
-112.910778912 |
TRS-SEC |
NAD83 |
27 |
|
purple sandstone, formation continues with many covered sections |
fine |
|
|
well |
2 |
maybe |
_f |
Grasshopper Creek |
09S |
11W |
11 |
D |
|
45.0628141416 |
-112.910778912 |
TRS-SEC |
NAD83 |
27 |
|
purple to buff sandstone |
medium |
|
|
|
3 |
maybe |
_f |
Grasshopper Creek |
09S |
11W |
11 |
D |
|
45.0628141416 |
-112.910778912 |
TRS-SEC |
NAD83 |
27 |
|
quartzite sandstone, purple-pink-tan |
medium to coarse |
|
|
|
15 |
maybe |
_f |
Grasshopper Creek |
09S |
11W |
11 |
D |
|
45.0628141416 |
-112.910778912 |
TRS-SEC |
NAD83 |
27 |
|
quartzite sandstone, lenses and beds of pebbles |
coarse to pebbly |
|
|
poorly |
13.5 |
maybe |
_f |
Kate Creek |
|
|
|
|
On ridge between right and left fork of Kate Creek about 6 miles from Ike Rife Ranch near junction o |
|
|
|
|
27 |
|
Partially covered, light gray sandstone with irregular masses and layers of medium gray quartzite |
fine - pebbly |
chert in areas, friable in others |
|
poorly |
54 |
probably not |
_f |
Ashbrough Canyon |
09S |
08W |
27 |
|
North Side of Ashbrough Canyon on west side of Blacktail Deer Creek valley, about 15 miles south of |
45.0214063868 |
-112.5689654695 |
TRS-SEC |
NAD83 |
27 |
|
White and light gray cross-bedded sandstone |
medium and coarse |
|
|
poorly |
23 |
no |
_f |
Ashbrough Canyon |
09S |
08W |
27 |
|
|
45.0214063868 |
-112.5689654695 |
TRS-SEC |
NAD83 |
27 |
|
medium to thick bedded sandstone, lighter and finer toward top, cross bedding |
medium to coarse |
|
|
|
27 |
maybe too pebbly |
_f |
Ashbrough Canyon |
09S |
08W |
27 |
|
|
45.0214063868 |
-112.5689654695 |
TRS-SEC |
NAD83 |
27 |
|
purplish - reddish gray, arkosic sandstone |
|
|
scattered angular quartz pebbles |
poorly |
6 |
no |
_f |
Camp Creek |
2S |
08W |
20 |
|
4 miles East of Melrose, in sec . 20, T. 2 S., R. 8 W., |
45.6488462947 |
-112.6193613665 |
TRS-SEC |
NAD83 |
28 |
|
Most of this unit is interbedded with shale. Medium bedded purplish gray quartzitic sandstone |
|
|
|
|
7 |
no- probably shaley |
_f |
Camp Creek |
2S |
08W |
20 |
|
|
45.6488462947 |
-112.6193613665 |
TRS-SEC |
NAD83 |
28 |
|
Massive to thin bedded brownish gray, quartzite with varying bed thickness |
|
|
|
|
25 |
no |
_f |
Sheep Mountain |
08S |
03W |
|
|
2 miles east of fork on South Fork of Green Horn Creek, T. 8 S., R. 3 W., Madison county |
|
|
|
|
30 |
|
Brownish gray, rusty when weathered, quartzite |
|
|
|
|
103 |
no |
_f |
Whitetail Valley |
02N |
04W |
11 |
|
5 miles northeast of Whitehall, sec 11, T. 2 N., R. 4 W., |
45.94030083105 |
-112.067259406 |
TRS-SEC |
NAD83 |
30 |
|
Light-gray and pinkish gray quartzite, followed by covered material |
medium |
|
|
|
12 |
no |
_f |
Whitetail Valley |
02N |
04W |
11 |
|
|
45.94030083105 |
-112.067259406 |
TRS-SEC |
NAD83 |
30 |
|
pinkish to brownish gray quartzite sandstone |
medium |
|
|
|
9 |
no |
_f |
Helena |
|
|
|
|
ridge east of first gate on Nelson Gultch 6 miles west of Helena |
|
|
|
|
31 |
|
gray, pinkish/brownish/purplish gray medium bedded quartzite followed by 38 (ft) quartzite talus |
medium |
|
|
|
81 |
no |
_f |
South Boulder |
01S |
03W |
21 |
|
West Side of South Boulder Creek sec. 21, T. 1 S., R. 3 W., Madison County |
45.7348238567 |
-111.977802497 |
TRS-SEC |
NAD83 |
33 |
|
Medium bedded, light gray, pinkish and tan-gray, rusty stains |
medium to coarse |
|
|
poorly |
40 |
maybe |
_f |
South Boulder |
01S |
03W |
21 |
|
|
45.7348238567 |
-111.977802497 |
TRS-SEC |
NAD83 |
33 |
|
medium bedded, brown and purplish gray then pinkish gray to tan sandstone |
medium |
hard |
|
|
17 |
maybe |
_f |
Wigwam Creek |
07S |
02W |
36 |
|
S 1/2 sec. 36, T.7S., R. 2W., and N 1/2 sec. 1, T. 8 S., R. 2 W., |
45.18168815935 |
-111.791626902 |
TRS-SEC |
NAD83 |
34 |
|
reddish brown to gray arkosic sandstone with 2 pebble beds followed by shale |
coarse |
|
|
poorly |
16 |
no |
_f |
Wigwam Creek |
07S |
02W |
36 |
|
|
45.18168815935 |
-111.791626902 |
TRS-SEC |
NAD83 |
34 |
|
reddish brown to brownish gray, highly cross-bedded quartzite, some pebbly layers and thinly laminated sandstone |
|
|
|
poorly |
13 |
no |
_f |
Wigwam Creek |
07S |
02W |
36 |
|
|
45.18168815935 |
-111.791626902 |
TRS-SEC |
NAD83 |
34 |
|
basal unconformity, reddish-brown to tan sandstone with some quartzite layers |
medium |
|
|
|
14 |
maybe |
_f |
Wigwam Creek |
08S |
02W |
1 |
|
S 1/2 sec. 36, T.7S., R. 2W., and N 1/2 sec. 1, T. 8 S., R. 2 W., |
45.1671623979 |
-111.791668198 |
TRS-SEC |
NAD83 |
34 |
|
reddish brown to gray arkosic sandstone with 2 pebble beds followed by shale |
coarse |
|
|
poorly |
16 |
no |
_f |
Wigwam Creek |
08S |
02W |
1 |
|
|
45.1671623979 |
-111.791668198 |
TRS-SEC |
NAD83 |
34 |
|
reddish brown to brownish gray, highly cross-bedded quartzite, some pebbly layers and thinly laminated sandstone |
|
|
|
poorly |
13 |
no |
_f |
Wigwam Creek |
08S |
02W |
1 |
|
|
45.1671623979 |
-111.791668198 |
TRS-SEC |
NAD83 |
34 |
|
basal unconformity, reddish-brown to tan sandstone with some quartzite layers |
medium |
|
|
|
14 |
maybe |
_f |
Townsend |
07N |
01E |
34 |
|
3 miles due west of Townsend, S 1/2sec. 34, T. 7 N., R. 1 E., |
46.31899645435 |
-111.58810785 |
TRS-SEC |
NAD83 |
35 |
|
quartzite and micaceous argillite (4:1), presence of impure sandstone, fine grained sills present |
|
|
|
|
71 |
no |
_f |
Townsend |
07N |
01E |
34 |
|
|
46.31899645435 |
-111.58810785 |
TRS-SEC |
NAD83 |
35 |
|
vitreous quartzite, cross-bedded, ridge forming, |
fine to coarse |
|
well rounded quartz, angular flat argillite (pebbles) |
poorly |
92 |
no |
_f |
White Sulphur Springs |
08N |
07E |
32 |
|
10 miles south of White Sulphur Springs sec. 32, T. 8 N., R. 7 E., |
46.4106377767 |
-110.8779856725 |
TRS-SEC |
NAD83 |
36 |
|
rusty gray quartzitic sandstone |
coarse |
|
|
|
7 |
maybe |
_f |
White Sulphur Springs |
08N |
07E |
32 |
|
|
46.4106377767 |
-110.8779856725 |
TRS-SEC |
NAD83 |
36 |
|
mostly covered but resembles above interval |
coarse |
|
|
|
46 |
maybe |
_f |
White Sulphur Springs |
08N |
07E |
32 |
|
|
46.4106377767 |
-110.8779856725 |
TRS-SEC |
NAD83 |
36 |
|
Thin to medium bedded, pale -pinkish gray to rusty gray sandstone, locally quartzitic |
medium - coarse |
|
|
poorly |
38 |
maybe |
_f |
White Sulphur Springs |
08N |
07E |
32 |
|
|
46.4106377767 |
-110.8779856725 |
TRS-SEC |
NAD83 |
36 |
|
Bedded, well exposed cliff, brown to flesh colored, mostly quartzite but some sandstone. |
coarse |
|
|
medium |
45 |
no |
_f |
Logan |
02N |
02E |
36 |
|
North Side of Gallatin River near Logan, Gallatin County |
45.88178167635 |
-111.419594524 |
TRS-SEC |
NAD83 |
37 |
|
Light gray and light pinkish, sandstone and quartzite |
medium -fine |
|
|
|
20 |
maybe |
_f |
Logan |
02N |
02E |
36 |
|
|
45.88178167635 |
-111.419594524 |
TRS-SEC |
NAD83 |
37 |
|
light purple and tan-gray, medium to thick bedded sandstone and quartzite |
coarse up to 3/8 " |
|
|
poorly |
11 |
probably not |
_f |
Logan |
02N |
02E |
36 |
|
|
45.88178167635 |
-111.419594524 |
TRS-SEC |
NAD83 |
37 |
|
medium bedded, flesh colored to light brown quartzite |
medium |
|
|
|
6 |
maybe |
_f |
Logan |
02N |
02E |
36 |
|
|
45.88178167635 |
-111.419594524 |
TRS-SEC |
NAD83 |
37 |
|
thick bedded quartzite, purplish |
medium |
|
|
|
4 |
|
_f |
Logan |
02N |
02E |
36 |
|
|
45.88178167635 |
-111.419594524 |
TRS-SEC |
NAD83 |
37 |
|
Buff and pinkish buff sandstone |
|
|
|
|
3 |
|
_f |
Logan |
02N |
02E |
36 |
|
|
45.88178167635 |
-111.419594524 |
TRS-SEC |
NAD83 |
37 |
|
medium interbedded quartzite and sandstone |
medium to fine |
|
|
|
9 |
|
_f |
Logan |
02N |
02E |
36 |
|
|
45.88178167635 |
-111.419594524 |
TRS-SEC |
NAD83 |
37 |
|
quartzite |
medium |
|
|
|
2 |
|
_f |
Logan |
02N |
02E |
36 |
|
|
45.88178167635 |
-111.419594524 |
TRS-SEC |
NAD83 |
37 |
|
Sandstone and quartzite |
|
|
|
|
5 |
|
_f |
Jourdain Creek |
05S |
01E |
22 |
|
sec 22 &23, T. 5 S., R. 1 E., 8 miles NE of Ennis |
45.38640026375 |
-111.586934256 |
TRS-SEC |
NAD83 |
38 |
|
argillaceous at top,thin to thick bedded purplish-gray quartzite and sandstone. |
medium to coarse |
|
|
|
98 |
yes lack of info |
_f |
Jourdain Creek |
05S |
01E |
23 |
|
sec 22 &23, T. 5 S., R. 1 E., 8 miles NE of Ennis |
45.38618545185 |
-111.5662599645 |
TRS-SEC |
NAD83 |
38 |
|
argillaceous at top,thin to thick bedded purplish-gray quartzite and sandstone. |
medium to coarse |
|
|
|
98 |
yes lack of info |
_f |
Arrowhead Mountain |
14S |
01W |
28 |
|
sec 28, T. 14 S., R. 1 W., |
44.58506172435 |
-111.730189541 |
TRS-SEC |
NAD83 |
39 |
|
covered brown and pinkish, sandstone and pebbly sandstone in soil |
pebbles |
|
|
|
75 |
no |
_f |
Cooke City |
09S |
14E |
25 |
D |
SE 1/4 sec 25, T. 9 S., R. 14 E., |
45.01597440455 |
-109.9257102835 |
TRS-SEC |
NAD83 |
40 |
|
sandstone interbedded with argillaceous sandstone and arenaceous shale |
fine |
|
|
|
36 |
no |
_f |
Cooke City |
09S |
14E |
25 |
D |
|
45.01597440455 |
-109.9257102835 |
TRS-SEC |
NAD83 |
40 |
|
Thin to thick bedded tan- gray sandstone, some fine grained purplish |
medium to coarse |
|
|
|
75 |
maybe |
_f |
Cooke City |
09S |
14E |
25 |
D |
|
45.01597440455 |
-109.9257102835 |
TRS-SEC |
NAD83 |
40 |
|
sandstone |
fine-medium |
|
|
|
|
maybe |