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Important for you to know:

  • New to WDFN: see current water conditions throughout the state using the new State Pages. Filter by continuous data type and age of data, view latest values, and link to graphing options to explore the data further. To learn more, read our announcement on the Water Data for the Nation blog.
Important Legacy real-time page

USGS Parameter Group Data Types Start Date End Date
Physical Daily Values, Unit Values 2021-04-01 2024-11-24
n/a USGS Annual Water Data Reports Site 2021-01-01 2024-01-01
Water Data for the Nation inventory

Monitoring location 01661350 is associated with a Stream in St. Mary's County, Maryland. Current conditions of Gage height and Precipitation are available. Water data back to 2021 are available online.

Metadata Element Location Metadata Metadata Code
Agency
U.S. Geological Survey USGS
Site identification number
01661350 n/a
Site name
MCINTOSH RUN NEAR LEONARDTOWN, MD n/a
Site type
Stream
ST
DMS latitude 381814.6 n/a
DMS longitude 0763923.6 n/a
Decimal latitude 38.30405556 n/a
Decimal longitude -76.6565556 n/a
Latitude-longitude method
Interpolated from Digital MAP. N
Latitude-longitude accuracy
Accurate to + or - 1 sec. S
Latitude-longitude datum
North American Datum of 1983 NAD83
Decimal Latitude-longitude datum North American Datum of 1983 NAD83
District
Maryland 24
State
Maryland 24
County
St. Mary's County 037
Country US n/a
Land net location description n/a
Name of location map LEONARDTOWN, MD n/a
Scale of location map 24000 n/a
Altitude of Gage/land surface 0 feet n/a
Method altitude determined Interpolated from Digital Elevation Model N
Altitude accuracy 1.6 feet n/a
Altitude datum
North American Vertical Datum of 1988 NAVD88
Subbasin hydrologic unit
Lower Potomac 02070011
Drainage basin
n/a
Topographic setting
n/a
Flags for instruments at site YNNNYNYNNNNNYNNNNNNNNNNNNNNNNN n/a
Date of first construction
20201221 n/a
Date site established or inventoried 20201221 n/a
Drainage area
29.6 square miles n/a
Contributing drainage area n/a
Time Zone abbreviation EST n/a
Site honors Daylight Saving Time
Y n/a
Data reliability
n/a
Data-other GW files n/a
National aquifer n/a
Local aquifer n/a
Local aquifer type
n/a
Well depth n/a
Hole depth
n/a
Source of depth data n/a
Project number n/a

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logo for St. Mary's County
St. Mary's County