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You searched for: Subject Inland Waters Remove constraint Subject: Inland Waters Institution Maryland Remove constraint Institution: Maryland
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Carroll County GIS Open Data

2016-2019. Enterprise GIS Division. Carroll County Government's GIS Open Data site for exploring thematic topics covered and downloading GIS datasets. Datasets available include addr...

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Chesapeake Bay Watersheds: District of Columbia

City of Washington, DC. Chesapeake Bay watersheds. The dataset contains locations and attributes of HUC-11 watersheds, created as part of the DC Geographic Information Sys...

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Floodplain - Effective Fema Floodplain: Maryland

2016. ArcGIS Online for Maryland. This is a MD iMAP hosted service. Find more information at http://imap.maryland.gov.The Effective Floodplain layer represents the official regulato...

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Floodplain - Preliminary Fema Floodplain: Maryland

2016. ArcGIS Online for Maryland. This is a MD iMAP hosted service. Find more information at http://imap.maryland.gov.This layer offers the anticipated floodplain boundaries however...

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Floodplain Cross Sections: Washington, D.C.

2015. City of Washington, DC. Cross Sections. The Digital Flood Insurance Rate Map (DFIRM) Database depicts flood risk information and supporting data used to develop the risk d...

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Floodplain: Harford County, Maryland

Harford County Government. The regulatory 100-year floodplain is an area mapped by the Federal Emergency Management Agency based upon the probability of that area flooding fr...

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Floodplains From 1985: Washington, D.C.

1985. City of Washington, DC. Floodplains from 1985. The FIRM is the basis for floodplain management, mitigation, and insurance activities for the National Flood Insurance Progr...

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Floodplains From 2010: Washington, D.C.

2010. City of Washington, DC. Floodplains from 2010. The FIRM is the basis for floodplain management, mitigation, and insurance activities for the National Flood Insurance Progr...

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Gauges - Stream Gauge Locations: Maryland

2016. ArcGIS Online for Maryland. This is a MD iMAP hosted service layer. Find more information at http://imap.maryland.gov.AHPS Shapefile - Observations - a shapefile of river and ...

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Gauges - Tide Gauge Locations: Maryland

2016. ArcGIS Online for Maryland. This is a MD iMAP hosted service layer. Find more information at http://imap.maryland.gov.This data layer shows the locations of NOAA tide gauges i...

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Hydrographic Areas: Montgomery County, Maryland

Montgomery County Planning Department of the Maryland National Capital Park and Planning Commission. The data set contains hydrographic features as identified from the development of planimetric mapping from aerial photography as part of the GeoMaP...

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Hydrographic Features: Montgomery County, Maryland

Montgomery County Planning Department of the Maryland National Capital Park and Planning Commission. This is a geodatabase of Hydrographic Features: Montgomery County, Maryland.

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Hydrographic Lines: Montgomery County, Maryland

Montgomery County Planning Department of the Maryland National Capital Park and Planning Commission. The data set contains hydrographic features as identified from the development of planimetric mapping from aerial photography as part of the GeoMaP...

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Polygon

Hydrography, Area Features: Montgomery County, Maryland, 2015

2015. Montgomery County Planning Department of the Maryland National Capital Park and Planning Commission. This is a feature class in the geodatabase Planimetric Mapping Features: Montgomery County, Maryland, 2015. The data set contains hydrographic feat...

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Hydrography Centerline: District of Columbia

2005. City of Washington, DC. Hydrography Centerline. The dataset contains polygons representing planimetric hydrography centerline, created as part of the DC Geographic Informa...

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Hydrography Centerline: Washington, D.C., 2005

2005. City of Washington, DC. Hydrography Centerline. The dataset contains lines representing planimetric Hydrography Centerline, created as part of the DC Geographic Informatio...

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Hydrography, Edge Features: Montgomery County, Maryland, 2015

2015. Montgomery County Planning Department of the Maryland National Capital Park and Planning Commission. This is a feature class in the geodatabase Planimetric Mapping Features: Montgomery County, Maryland, 2015. The data set contains hydrographic feat...

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Hydrography Lines: Washington, D.C., 2015

2015. City of Washington, DC. Hydrography lines. The dataset contains polygons representing planimetric hydrography, created as part of the DC Geographic Information System (DC ...

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Hydrology Lines: Baltimore County, Maryland

Baltimore County Web Map Portal. Feature class contains all hydrology lines for Baltimore County. Lines were compiled from aerial photography.

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Impervious Surface 2013: District of Columbia

2013. City of Washington, DC. The dataset contains basemap (planimetric) features that are typically classified as impervious surface captured in 2013., created as part of the D...

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Major Drainage Basins: Baltimore, Maryland

Enterprise Geographic Information Services. Polygon feature representing the major drainage basins within Baltimore City. Last Updated 2008.

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Montgomery County GIS Open Data

2009-2019. Technology Services, GIS Services. This is the Montgomery County Government GIS Open Data Website used for exploring and downloading public GIS Open Datasets. Available datasets incl...