Agency
U.S. Geological Survey
USGS
Site identification number
473040111111601
n/a
Site name
20N04E02DCB MAFB 7
n/a
Site type
Test hole not completed as a well
GW-TH
DMS latitude
473040.49
n/a
DMS longitude
1111116.58
n/a
Decimal latitude
47.5112472
n/a
Decimal longitude
-111.1879389
n/a
Latitude-longitude method
Differentially corrected Global Positioning System.
D
Latitude-longitude accuracy
Accurate to + or - .01 sec (Differentially-Corrected GPS).
H
Latitude-longitude datum
North American Datum of 1983
NAD83
Decimal Latitude-longitude datum
North American Datum of 1983
NAD83
District
Montana
30
State
Montana
30
County
Cascade County
013
Country
US
n/a
Land net location description
SWSES02 T20N R04E M
n/a
Name of location map
NORTHEAST GREAT FALL
n/a
Scale of location map
24000
n/a
Altitude of Gage/land surface
3463.5
feet
n/a
Method altitude determined
Level or other surveyed method.
L
Altitude accuracy
.01
feet
n/a
Altitude datum
North American Vertical Datum of 1988
NAVD88
Subbasin hydrologic unit
Upper Missouri-Dearborn
10030102
Drainage basin
n/a
Topographic setting
Alluvial terrace
T
Flags for instruments at site
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
n/a
Date of first construction
n/a
Date site established or inventoried
20230823
n/a
Drainage area
n/a
Contributing drainage area
n/a
Time Zone abbreviation
MST
n/a
Site honors Daylight Saving Time
Y
n/a
Data reliability
Data have been checked by the reporting agency.
C
Data-other GW files
n/a
National aquifer
Alluvial aquifers
N100ALLUVL
Local aquifer
Terrace Deposits
110TRRC
Local aquifer type
Unconfined single aquifer
U
Well depth
n/a
Hole depth
n/a
Source of depth data
n/a
Project number
MAF00
n/a
