Agency
U.S. Geological Survey
USGS
Site identification number
434257103511001
n/a
Site name
4S 2E11BC (Lake Unreachable Cave Lake)
n/a
Site type
Cave
SB-CV
DMS latitude
434257.18
n/a
DMS longitude
1035109.66
n/a
Decimal latitude
43.7158833
n/a
Decimal longitude
-103.8526833
n/a
Latitude-longitude method
Transit, theodolite, or other surveying method.
S
Latitude-longitude accuracy
Unknown or unspecified.
U
Latitude-longitude datum
North American Datum of 1983
NAD83
Decimal Latitude-longitude datum
North American Datum of 1983
NAD83
District
South Dakota
46
State
South Dakota
46
County
Custer County
033
Country
US
n/a
Land net location description
NWSWS11 T04S R02E B
n/a
Name of location map
JEWEL CAVE, SD
n/a
Scale of location map
24000
n/a
Altitude of Gage/land surface
5298
feet
n/a
Method altitude determined
Interpolated from Digital Elevation Model
N
Altitude accuracy
4.3
feet
n/a
Altitude datum
North American Vertical Datum of 1988
NAVD88
Subbasin hydrologic unit
Beaver
10120107
Drainage basin
n/a
Topographic setting
n/a
Flags for instruments at site
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
n/a
Date of first construction
20190809
n/a
Date site established or inventoried
20190809
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
Minimal data.
M
Data-other GW files
YY Y
n/a
National aquifer
Paleozoic aquifers
N500PLOZOC
Local aquifer
Madison Group
331MDSM
Local aquifer type
Unconfined single aquifer
U
Well depth
n/a
Hole depth
n/a
Source of depth data
n/a
Project number
n/a
