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 |
Kv |
Section 1. St.Mary River Formation Montana Group |
17N |
05W |
21 |
CCA |
NE1/4 SW 1/4 SW 1/4 sec. 21, T. 17 N., R. 5 W., |
47.20891704845 |
-112.2532397215 |
TRS-SEC |
NAD83 |
12 |
7 |
Light-greenish to yellow-gray, crossbedded, weathers buff, upper part has magnetite-rich hard sandstone (cap rock), upper part of unit fossiliferous |
medium |
limy |
|
|
38 |
no |
Kv |
Section 1. St.Mary River Formation Montana Group |
17N |
05W |
21 |
CCA |
|
47.20891704845 |
-112.2532397215 |
TRS-SEC |
NAD83 |
12 |
5 |
Light-greenish to yellow-gray, crossbedded, weathers buff, biotitic, medium bedded and locally cross-bedded |
medium |
limy |
|
|
60 |
probably not |
Kv |
Section 1. St.Mary River Formation Montana Group |
17N |
05W |
21 |
CCA |
|
47.20891704845 |
-112.2532397215 |
TRS-SEC |
NAD83 |
12 |
|
light-gray, thin to massive bedded, a few shaly partings, lower part poorly exposed |
fine-medium |
|
|
|
65 |
maybe |
Kjr |
Section 2. Miner Creek Formation, Meagher County |
07N |
09E |
17 |
BC |
SW1/4 NW 1/4 to the NE 1/4 NE 1/4 sec. 17, T. 7 N., R. 9 E |
46.3687516799 |
-110.6360741525 |
TRS-SEC |
NAD83 |
25 |
13 |
Light Gray sandstone, salt and pepper, local placer-like accumulations of dark, heavy mineral grains. |
fine-medium |
|
|
|
50 |
no |
Kjr |
Section 2. Miner Creek Formation, Meagher County |
07N |
09E |
17 |
AA |
SW1/4 NW 1/4 to the NE 1/4 NE 1/4 sec. 17, T. 7 N., R. 9 E |
46.3724076799 |
-110.6202274025 |
TRS-SEC |
NAD83 |
25 |
13 |
Light Gray sandstone, salt and pepper, local placer-like accumulations of dark, heavy mineral grains. |
fine-medium |
|
|
|
50 |
no |
Ke |
Section 2. Miner Creek Formation, Meagher County |
06N |
08E |
16 |
AD |
SE 1/4 NE 1/4 sec. 16, T. 6 N., R. 8 E. |
46.28196481205 |
-110.724322428 |
TRS-SEC |
NAD83 |
26 |
7 |
Pale-olive to light-gray, contains 4 hard layers of dark concretionary sandstone, capped with 3 ft of white sandstone |
fine-medium |
soft |
|
|
73 |
no |
Ke |
Section 2. Miner Creek Formation, Meagher County |
06N |
08E |
16 |
AD |
|
46.28196481205 |
-110.724322428 |
TRS-SEC |
NAD83 |
27 |
4 |
Light-gray, clayey |
|
soft |
|
|
20 |
maybe |
Kv |
Section 2. Miner Creek Formation, Meagher County |
06N |
08E |
16 |
AD |
|
46.28196481205 |
-110.724322428 |
TRS-SEC |
NAD83 |
28 |
3 |
Light-gray, massive, contains lense of olive green andesitic sandstone; capped by 5.5 ft of magnetite-rich sandstone; also contains limy irregular masses and concretions of brown-weathered sandstone. |
fine |
|
|
|
120 |
no |
Kjr |
Section 3. |
06N |
16E |
18 |
|
Cen. sec. 18, T. 6 N., R. 16E., |
46.2697989588 |
-109.7687738155 |
TRS-SEC |
NAD83 |
35 |
34 |
Greenish-gray, thin and crossbedded, forms ridges in upper and middle part followed by softer greenish clayey sandstone and sandy claystone. Dino bone fragments. Forms prominent parallel ridges |
fine-medium |
calcareous |
|
|
30 |
no |
Kjr |
Section 3. |
06N |
16E |
18 |
|
|
46.2697989588 |
-109.7687738155 |
TRS-SEC |
NAD83 |
35 |
33 |
light-greenish gray, crossbedded, 3 ridges separated by argillaceous siltstone |
fine |
calcareous |
|
|
65 |
no |
Kjr |
Section 3. |
06N |
16E |
18 |
|
|
46.2697989588 |
-109.7687738155 |
TRS-SEC |
NAD83 |
36 |
31 |
yellowish-gray, poorly exposed |
fine -medium |
calcareous, soft |
|
|
55 |
no |
Kjr |
Section 3. |
06N |
16E |
18 |
|
|
46.2697989588 |
-109.7687738155 |
TRS-SEC |
NAD83 |
36 |
30 |
yellowish-gray, massive, crossbedded, contains ophiomorpha |
fine |
calcareous |
|
|
30 |
no |
Kjr |
Section 3. |
06N |
16E |
18 |
|
|
46.2697989588 |
-109.7687738155 |
TRS-SEC |
NAD83 |
36 |
29 |
yellowish-gray, thin bedded, ripple marked, contains thin beds of silty shale in upper part; rare limestone concretions in middle, lower part forms persistent ledge |
fine |
calcareous |
|
|
50 |
no |
Ke |
Section 3. |
06N |
16E |
18 |
|
|
46.2697989588 |
-109.7687738155 |
TRS-SEC |
NAD83 |
37 |
20 |
pale-yellowish-gray, thin bedded, hard-ridge former, few small clay pebbles |
medium to coarse |
|
|
|
10 |
no |
Kv |
Section 3. |
06N |
15E |
14 |
A |
NE 1/4 sec. 14, T. 6 N., R. 15 E. |
46.27314905985 |
-109.804825446 |
TRS-SEC |
NAD83 |
39 |
6 |
White in upper part, light olive gray in lower part, thin to medium even bedded, lots of borings and Ophiomorpha; appears andesitic in part |
fine-medium |
non-calcareous |
|
|
73 |
no |
Kle |
Section 4 |
06N |
22E |
23 |
D |
SE 1/4 sec. 23, T. 6 N., R. 22 E. |
46.25189869285 |
-108.930627844 |
TRS-SEC |
NAD83 |
43 |
69 |
Pale-yellowish-gray, cross bedded and hard ledge former |
medium to coarse |
|
|
|
1.5 |
no |
Kle |
Section 4 |
06N |
22E |
23 |
D |
|
46.25189869285 |
-108.930627844 |
TRS-SEC |
NAD83 |
44 |
68 |
Pale-yellowish-gray, thin bedded, ripple marked, lots of Ophiomorpha |
very fine grained |
|
|
|
15 |
no |
Kjr |
Section 4 |
08N |
20E |
25 |
C |
SW 1/4 sec. 25, T. 8N., R. 20E., |
46.42040443495 |
-109.168711831 |
TRS-SEC |
NAD83 |
55 |
30 |
Light-brownish-gray, thin bedded, seems andesitic |
fine |
|
|
|
5 |
no |
Kjr |
Section 4 |
08N |
20E |
25 |
C |
|
46.42040443495 |
-109.168711831 |
TRS-SEC |
NAD83 |
58 |
21 |
Yellowish-gray, micaceous, thick bedded to massive, crossbedded, borings in lower part, clay pebble conglomerate at top |
|
calcareous |
|
|
70 |
no |
Kjr |
Section 5 |
08N |
20E |
25 |
C |
|
46.42040443495 |
-109.168711831 |
TRS-SEC |
NAD83 |
58 |
20 |
Yellowish-gray, thin-medium bedded, crossbedded, interbedded with shale and soft clayey sandstone |
fine |
calcareous |
|
|
30 |
no |
Kjr |
Section 6 |
08N |
20E |
25 |
C |
|
46.42040443495 |
-109.168711831 |
TRS-SEC |
NAD83 |
58 |
19 |
Yellowish-gray, micaceous, thick bedded to massive, crossbedded, lower part thin bedded with shaly partings, rare borings, honeycomb weathering |
fine |
calcareous |
|
|
50 |
no |