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State
MD iMAP: Maryland Tidal Waters
State of Maryland —
This is a MD iMAP hosted service. Find more information on http://imap.maryland.gov. The MD_Surface_Waters Feature Dataset includes 7 feature classes that... -
City
Jefferson County KY Streams - 2019
Louisville Metro Government —
The Hydrographic Lines (HL_LINE) layer consists of polyline boundaries of water bodies such as lakes, basins, ponds and wet streams within Jefferson County, Kentucky... -
State
Iowa AQuIA Water Quality Database
State of Iowa —
The Iowa Department of Natural Resources is responsible for developing and delivering consistent, unbiased information about the condition of Iowa's surface and... -
State
MD iMAP: IR2012 TWcontactrec
State of Maryland —
This is a MD iMAP hosted service. Find more information on http://imap.maryland.gov. The MD_Surface_Waters Feature Dataset includes 7 feature classes that... -
State
State Lands Dock Registrations
State of Oregon —
This dataset includes active registrations for: * Non-commercial dock, boat house or dock with boat house of 2,500 sq. ft. or less * Floating recreational cabin of... -
State
Salt Water Limit
State of Connecticut —
Salt Water Limit is a 1:24000-scale, line feature-based layer that depicts the approximate salt water limits of watercourses and embayments in coastal Connecticut. It... -
State
MD iMAP: Tidal Waters - Swimming/Bacteria Assessments only
State of Maryland —
This is a MD iMAP hosted service. Find more information on http://imap.maryland.gov. The MD_Surface_Waters Feature Dataset includes 7 feature classes that... -
State
MD iMAP: Maryland Water Quality - Tier II High Quality Waters 2012
State of Maryland —
This is a MD iMAP hosted service layer. Find more information at http://imap.maryland.gov. The intent of this dataset is for it to be used to produce maps and provide... -
State
MD iMAP: IR2012 TWCateg4Bpts
State of Maryland —
This is a MD iMAP hosted service. Find more information on http://imap.maryland.gov. The MD_Surface_Waters Feature Dataset includes 7 feature classes that... -
State
River Corridors (August, 2019)
Vermont Center for Geographic Information —
For a thorough discussion of the purpose, design and management of the Vermont River Corridors dataset, please see the "Vermont DEC Flood Hazard Area and River... -
State
MD iMAP: Maryland Waterbodies - Rivers and Streams (Detailed)
State of Maryland —
This is a MD iMAP hosted service layer. Find more information at http://imap.maryland.gov. Line features of rivers and streams (detailed shape) in Maryland. Last... -
State
MD iMAP: Maryland Waterbodies - Rivers and Streams (Generalized)
State of Maryland —
This is a MD iMAP hosted service layer. Find more information at http://imap.maryland.gov. The digital segmented network based on watershed boundaries - ERF1-2 -... -
State
MD iMAP: Tidal Waters - Legacy Assessments only
State of Maryland —
This is a MD iMAP hosted service. Find more information on http://imap.maryland.gov. The MD_Surface_Waters Feature Dataset includes 7 feature classes that... -
County
Hydrologic Information Center - Station Search
King County, Washington —
Search for monitoring stations maintained by King County's Hydrologic Information Center. (use a blank search to see all stations). -
State
MD iMAP: Maryland Waterbodies - Lakes (Detailed)
State of Maryland —
This is a MD iMAP hosted service layer. Find more information at http://imap.maryland.gov. Although the State of Maryland has no natural lakes - it has an abundance... -
State
2016 Impaired Streams of Iowa
State of Iowa —
This dataset contains line work representing streams and rivers listed as "impaired" in Iowa's 2016 Section 305(b) Water Quality Assessment and the 303(d) Impaired... -
State
MD iMAP: IR2012 RiversStreams
State of Maryland —
This is a MD iMAP hosted service. Find more information on http://imap.maryland.gov. The MD_Surface_Waters Feature Dataset includes 7 feature classes that... -
State
MD iMAP: Maryland Water Quality - Tier II Catchments 2012
State of Maryland —
This is a MD iMAP hosted service layer. Find more information at http://imap.maryland.gov. This dataset provides the Tier II catchments delineated for the most... -
State
MD iMAP: IR2012 TWdefault
State of Maryland —
This is a MD iMAP hosted service. Find more information on http://imap.maryland.gov. The MD_Surface_Waters Feature Dataset includes 7 feature classes that... -
State
Major Water Sources in Iowa - Streams
State of Iowa —
The Major Water Sources list was created by IDNR to address concerns that new confinements would be constructed within view of "floatable/canoeable" rivers. The...