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Federal
Navigable Waterway Network Lines NGDA
Department of Transportation —
The Navigable Waterway Network Lines dataset is periodically updated by the United States Army Corp of Engineers (USACE) and is part of the U.S. Department of... -
Federal
Marine Highways
Department of Transportation —
The Marine Highways dataset was created on June 15, 2016 and was updated on September 10, 2025 by the U.S. Maritime Administration (MARAD) and is part of the U.S.... -
State
MD iMAP: Maryland Transit - Light Rail Lines
State of Maryland —
This is a MD iMAP hosted service layer. Find more information at http://imap.maryland.gov. Maryland Transit Administration light rail routes. See... -
State
MD iMAP: Maryland Transit - Light Rail Parking
State of Maryland —
This is a MD iMAP hosted service layer. Find more information at http://imap.maryland.gov. This data shows the locations of MTA's light rail parking facilities. Last... -
Federal
Navigable Waterway Network Nodes NGDA
Department of Transportation —
The Navigable Waterway Network Nodes dataset is periodically updated by the United States Army Corp of Engineers (USACE) and is part of the U.S. Department of... -
State
MD iMAP: Maryland Transit - WMATA Metro Lines
State of Maryland —
This is a MD iMAP hosted service layer. Find more information at http://imap.maryland.gov. Metro Lines (regional). The dataset contains locations and attributes of... -
State
MD iMAP: Maryland Transit - MTA Bus Lines
State of Maryland —
This is a MD iMAP hosted service layer. Find more information at http://imap.maryland.gov. Maryland Transit Administration Bus Routes including Local Bus - Commuter... -
State
MD iMAP: Maryland Transit - WMATA Metro Stops
State of Maryland —
This is a MD iMAP hosted service layer. Find more information at http://imap.maryland.gov. Metro Stations (regional). The dataset contains points representing... -
State
MD iMAP: Maryland Transit - MARC Train Stops
State of Maryland —
This is a MD iMAP hosted service layer. Find more information at http://imap.maryland.gov. Maryland Tranist Administration MARC Rail Stops. This data is based upon... -
State
MD iMAP: Maryland Transit - Baltimore Metro Subway Lines
State of Maryland —
This is a MD iMAP hosted service layer. Find more information at http://imap.maryland.gov. Maryland Transit Administration METRO routes. The 15.5-mile - 14-station... -
State
MD iMAP: Maryland Transit - Baltimore Metro Subway Parking
State of Maryland —
This is a MD iMAP hosted service layer. Find more information at http://imap.maryland.gov. Maryland Transit Administration METRO Parking Facilities. The 15.5-mile -... -
State
MD iMAP: Maryland Transit - MARC Train Lines
State of Maryland —
This is a MD iMAP hosted service layer. Find more information at http://imap.maryland.gov. Maryland Transit Administration MARC Commuter Rail lines. For more... -
State
MD iMAP: Maryland Transit - MTA Bus Stops
State of Maryland —
This is a MD iMAP hosted service layer. Find more information at http://imap.maryland.gov. Maryland Tranist Administration Transit Stops and Stations including Local... -
State
MD iMAP: Maryland Transit - Light Rail Stops
State of Maryland —
This is a MD iMAP hosted service layer. Find more information at http://imap.maryland.gov. Maryland Tranist Administration Light Rail Stops. This data is based upon... -
State
MD iMAP: Maryland Transit - WMATA Metro Bus Stops
State of Maryland —
This is a MD iMAP hosted service layer. Find more information at http://imap.maryland.gov. Metrobus provides more than 400 - 000 trips each weekday serving 11 - 500... -
State
MD iMAP: Maryland Transit - Amtrak Rail Lines
State of Maryland —
This is a MD iMAP hosted service layer. Find more information at http://imap.maryland.gov. The Rail Network is a comprehensive database of the nation's railway system... -
State
MD iMAP: Maryland Transit - Sea Ports
State of Maryland —
This is a MD iMAP hosted service layer. Find more information at http://imap.maryland.gov. Contains physical information on commercial facilities at the principal... -
State
MD iMAP: Maryland Transit - Baltimore Metro Subway Stops
State of Maryland —
This is a MD iMAP hosted service layer. Find more information at http://imap.maryland.gov. Maryland Transit Administration Metro Subway Stops. This data is based upon... -
State
MD iMAP: Maryland Transit - Amtrak Rail Stops
State of Maryland —
This is a MD iMAP hosted service layer. Find more information at http://imap.maryland.gov. Updated database of the Federal Railroad Administration's (FRA) Amtrak... -
State
MD iMAP: Maryland Transit - WMATA Metro Bus Lines
State of Maryland —
This is a MD iMAP hosted service layer. Find more information at http://imap.maryland.gov. Metrobus provides more than 400 - 000 trips each weekday serving 11 - 500...