This is a MD iMAP hosted service layer. Find more information at http://imap.maryland.gov. This file of geologic unit polygons is for educational use. There are known errors and omissions. The file is part of a recompilation of the 1968 Geologic Map of Maryland. Last Updated: Feature Service Layer Link: http://geodata.md.gov/imap/rest/services/Geoscientific/MD_Geology/MapServer/0 ADDITIONAL LICENSE TERMS: The Spatial Data and the information therein (collectively "the Data") is provided "as is" without warranty of any kind either expressed implied or statutory. The user assumes the entire risk as to quality and performance of the Data. No guarantee of accuracy is granted nor is any responsibility for reliance thereon assumed. In no event shall the State of Maryland be liable for direct indirect incidental consequential or special damages of any kind. The State of Maryland does not accept liability for any damages or misrepresentation caused by inaccuracies in the Data or as a result to changes to the Data nor is there responsibility assumed to maintain the Data in any manner or form. The Data can be freely distributed as long as the metadata entry is not modified or deleted. Any data derived from the Data must acknowledge the State of Maryland in the metadata.

This is a MD iMAP hosted service layer. Find more information at http://imap.maryland.gov. This data layer contains the Province-level physiographic subdivisions of Maryland in ArcGIS format. The file was developed from components of a detailed digital physiographic map of Maryland by James P. Reger and Emery T. Cleaves - currently in progress. Physiography is the study and classification of the natural landscape of the earth and the landforms that comprise it. The approach for the detailed physiographic map of Maryland is hierarchical and descriptive. Subdivisions are based on similarities (within) and differences (among) geologic structure - rock type - geomorphic history - and topographic characteristics. Data and subdivisions were compiled at a 1:100 - 000 scale for the detailed state-wide map. The hierarchical classification of the detailed physiographic map (in progress) includes subdivisions as follows - in descending order (and generally decreasing size): Province - Section - Region - District - Area. In Maryland there are portions of five physiographic Provinces. In this file - the polygons reflect Province level subdivision. The polygon feature attribute table has been developed to pertain only to the Provinces level. The table includes information on dominant rock types - geologic structure - topographic relief - and drainage pattern.Physiography is the study and classification of the natural landscape of the earth and the landforms that comprise it. The approach for the detailed physiographic map of Maryland is hierarchical and descriptive. Subdivisions are based on similarities (within) and differences (among) geologic structure - rock type - geomorphic history - and topographic characteristics. Data and subdivisions were compiled at a 1:100 - 000 scale for the detailed state-wide map. The hierarchical classification of the detailed physiographic map (in progress) includes subdivisions as follows - in descending order (and generally decreasing size): Province - Section - Region - District - Area. In Maryland there are portions of five physiographic Provinces. In this file - the polygons reflect Province level subdivision. The polygon feature attribute table has been developed to pertain only to the Provinces level. The table includes information on dominant rock types - geologic structure - topographic relief - and drainage pattern. Last Updated: Feature Service Layer Link: http://geodata.md.gov/imap/rest/services/Geoscientific/MD_Geology/MapServer/1 ADDITIONAL LICENSE TERMS: The Spatial Data and the information therein (collectively "the Data") is provided "as is" without warranty of any kind either expressed implied or statutory. The user assumes the entire risk as to quality and performance of the Data. No guarantee of accuracy is granted nor is any responsibility for reliance thereon assumed. In no event shall the State of Maryland be liable for direct indirect incidental consequential or special damages of any kind. The State of Maryland does not accept liability for any damages or misrepresentation caused by inaccuracies in the Data or as a result to changes to the Data nor is there responsibility assumed to maintain the Data in any manner or form. The Data can be freely distributed as long as the metadata entry is not modified or deleted. Any data derived from the Data must acknowledge the State of Maryland in the metadata.

This is a MD iMAP hosted service layer. Find more information at http://imap.maryland.gov. This data layer is a compilation of the MUPOLYGON feature class - muaggatt table and component table of the Gridded Soil Survey Geographic (gSSURGO) Database for Maryland. United States Department of Agriculture - Natural Resources Conservation Service. Under the direction of the Watershed Resources Registry (WRR) Technical Advisory Committee (TAC) this data has been altered from its original state. A reclassification of the hydric classification field was performed which classifies all soil map units consisting of less that 40% total hydric soils as not hydric - all soil map units from 41% - 79% as partially hydric and all soil map units 80% and greater as hydric. This reclassification was performed to provide a more refined input for modeling purposes. A full version of this database is available at: http://datagateway.nrcs.usda.gov/. Last Updated: 01/15/2014 Feature Service Layer Link: http://geodata.md.gov/imap/rest/services/Geoscientific/MD_Geology/MapServer/2 ADDITIONAL LICENSE TERMS: The Spatial Data and the information therein (collectively "the Data") is provided "as is" without warranty of any kind either expressed implied or statutory. The user assumes the entire risk as to quality and performance of the Data. No guarantee of accuracy is granted nor is any responsibility for reliance thereon assumed. In no event shall the State of Maryland be liable for direct indirect incidental consequential or special damages of any kind. The State of Maryland does not accept liability for any damages or misrepresentation caused by inaccuracies in the Data or as a result to changes to the Data nor is there responsibility assumed to maintain the Data in any manner or form. The Data can be freely distributed as long as the metadata entry is not modified or deleted. Any data derived from the Data must acknowledge the State of Maryland in the metadata.