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Federal
EnviroAtlas National Layers Master Web Service 20 recent views
U.S. Environmental Protection Agency —
This EnviroAtlas web service supports research and online mapping activities related to EnviroAtlas (https://www.epa.gov/enviroatlas). This web service includes... -
Federal
EnviroAtlas - 303(d) Impairments by 12-digit HUC for the Conterminous United States
U.S. Environmental Protection Agency —
This EnviroAtlas dataset depicts the total length of stream or river flowlines that have impairments submitted to the EPA by states under section 303(d) of the Clean... -
State
MD iMAP: Maryland Archived Submerged Aquatic Vegetation 1994
State of Maryland —
This is a MD iMAP hosted service. Find more information on http://imap.maryland.gov. The Chesapeake Bay SAV was mapped from 1:24 - 000 black and white aerial... -
Federal
EnviroAtlas - 2011 Agricultural Land Cover on Steep Slopes for the Conterminous United States
U.S. Environmental Protection Agency —
This EnviroAtlas dataset represents the percentage land area that is classified as agricultural land cover that occurs on slopes above a given threshold for each... -
State
MD iMAP: Maryland Archived Submerged Aquatic Vegetation 2006
State of Maryland —
This is a MD iMAP hosted service. Find more information on http://imap.maryland.gov. The 2006 Chesapeake Bay Submerged Aquatic Vegetation (SAV) was mapped from 1:24 -... -
State
MD iMAP: Maryland Living Resources - Maryland Amphibian and Reptiles Atlas Grid
State of Maryland —
This is a MD iMAP hosted service. Find more information at http://imap.maryland.gov. This shapefile contains the outline of each Breeding Bird Atlas block for the... -
State
MD iMAP: Maryland Shellfish - Public Shellfishery Areas
State of Maryland —
This is a MD iMAP hosted service. Find more information at http://imap.maryland.gov. Polygon layer of public shellfishery areas in Maryland.Feature Service... -
State
MD iMAP: Maryland Living Resources - Waterfowl Areas
State of Maryland —
This is a MD iMAP hosted service. Find more information at http://imap.maryland.gov. A digital polygon layer showing waterfowl concentration and staging areas along... -
State
MD iMAP: Maryland Archived Submerged Aquatic Vegetation 2004
State of Maryland —
This is a MD iMAP hosted service. Find more information on http://imap.maryland.gov. The 2004 Chesapeake Bay Submerged Aquatic Vegetation (SAV) was mapped from 1:24 -... -
State
MD iMAP: Maryland Archived Submerged Aquatic Vegetation 2008
State of Maryland —
This is a MD iMAP hosted service. Find more information on http://imap.maryland.gov. The 2008 Chesapeake Bay SAV Coverage was mapped from 1:24 - 000 black and white... -
State
MD iMAP: Maryland Archived Submerged Aquatic Vegetation 1993
State of Maryland —
This is a MD iMAP hosted service. Find more information on http://imap.maryland.gov. The Chesapeake Bay SAV was mapped from 1:24 - 000 black and white aerial... -
State
MD iMAP: Maryland Shellfish - Sea Scallop Relative Abundance
State of Maryland —
This is a MD iMAP hosted service. Find more information at http://imap.maryland.gov. This table contains an attribute indicating sea scallop abundance for OCS blocks.... -
State
MD iMAP: Maryland Archived Submerged Aquatic Vegetation 1995
State of Maryland —
This is a MD iMAP hosted service. Find more information on http://imap.maryland.gov. The Chesapeake Bay SAV was mapped from 1:24 - 000 black and white aerial... -
State
MD iMAP: Maryland Green Infrastructure - Green Infrastructure Hubs And Corridors
State of Maryland —
This is a MD iMAP hosted service layer. Find more information at http://imap.maryland.gov. These data map hub and corridor elements within the green infrastructure.... -
State
MD iMAP: Maryland Archived Submerged Aquatic Vegetation 1991
State of Maryland —
This is a MD iMAP hosted service. Find more information on http://imap.maryland.gov. The Chesapeake Bay SAV was mapped from 1:24 - 000 black and white aerial... -
State
MD iMAP: Green Infrastructure Gaps
State of Maryland —
This is a MD iMAP hosted service. Find more information on http://imap.maryland.gov. These data map hub - corridor - and gap elements within the green infrastructure.... -
State
MD iMAP: Maryland Archived Submerged Aquatic Vegetation 2009
State of Maryland —
This is a MD iMAP hosted service. Find more information on http://imap.maryland.gov. The 2009 Chesapeake Bay SAV Coverage was mapped from 1:24 - 000 black and white... -
State
MD iMAP: Maryland Archived Submerged Aquatic Vegetation 2000
State of Maryland —
This is a MD iMAP hosted service. Find more information on http://imap.maryland.gov. The 2000 Chesapeake Bay Submerged Aquatic Vegetation (SAV) was mapped from 1:24 -... -
State
MD iMAP: Maryland Living Resources - Natural Heritage Areas
State of Maryland —
This is a MD iMAP hosted service. Find more information at http://imap.maryland.gov. The multiple vector file denotes the 32 areas designated in the state's...