Layer: Local_Geologies_FRED_WASH

View In: Map Viewer

Name: Local_Geologies_FRED_WASH_geo

Display Field: MapUnit

Type: Feature Layer

Geometry Type: esriGeometryPolygon

Description: This layer contains data concerning the location and characteristics of bedrock, mappable geologic units, within Frederick and Washington counties. This geodatabase contains geologic data from Frederick and Washington Counties, Maryland. Data from several geologic quadrangles and two regional scale geologic maps were incorporated into the regional scale geologic feature classes in this geodatabase. Because of the scale of this map, some features were generalized slightly from the quad scale data. Additionally, some corrections were made for accuracy, such as edge matching to resolve "border faults". The source data for this map and geodatabase come from maps published by the Maryland Geological Survey from 2001 to the present, as well as one map published in cooperation with the United States Geological Survey. The source maps are Buckeystown (2001), Catoctin Furnace (2004), Frederick (2004), New Windsor (2004), Point of Rocks (2004), Walkersville (2004), Woodsboro (2004), Middletown (2005), Union Bridge (2006), Funkstown (2009), Keedysville, Shepherdstown, Charlestown, and Harpers Ferry (2009), Myersville and Smithsburg (2009), Hagerstown (2013), Mason and Dixon (2013), Clear Spring and Hedgesville (2014), Williamsport (2014), Blue Ridge Summit (2021, in review), Emmitsburg and Taneytown (2021, in review), all 1:24000 quadrangle scale, as well as portions of two regional maps: Geologic Map of Garrett, Allegany, and Western Washington Counties, Maryland (2013), and Geologic Map of the Frederick 30' x 60' Quadrangle, Maryland, Virginia, and West Virginia (USGS, 2007). The GIS data from the referenced maps were mosaiced in Arc Map, corrected for accuracy across quad boundaries, merged to form a continuous dataset and clipped to the extent of the two counties in Maryland: Washington and Frederick. Feature level metadata are included, which contain field descriptions for each feature class. This is a small scale dataset, appropriate for 1:100,000 regional scale. Quad scale data are suggested for display or analysis that requires a larger scale. This dataset is prepared for compliance with the USGS GeMS database standard.

Copyright Text: Production of this digital geologic map and processing this geodatabase in the USGS GeMS standard was funded in part by the USGS.

Min. Scale: 0

Max. Scale: 0

Default Visibility: true

Max Record Count: 2000

Supported query Formats: JSON, geoJSON, PBF

Use Standardized Queries: True

Extent:

Drawing Info:

{"renderer":{"type":"simple","symbol":{"type":"esriSFS","style":"esriSFSSolid","color":[255,235,175,255],"outline":{"type":"esriSLS","style":"esriSLSSolid","color":[110,110,110,255],"width":0.5}}},"scaleSymbols":true,"transparency":0,"labelingInfo":null}
HasZ: false

HasM: false

Has Attachments: false

Has Geometry Properties: true

HTML Popup Type: esriServerHTMLPopupTypeAsHTMLText

Object ID Field: FID

Unique ID Field:

Global ID Field:

Type ID Field:

Fields:

FID (type: esriFieldTypeOID, alias: FID, SQL Type: sqlTypeOther, length: 0, nullable: false, editable: false)
MapUnit (type: esriFieldTypeString, alias: MapUnit, SQL Type: sqlTypeOther, length: 10, nullable: true, editable: true)
IdentityCo (type: esriFieldTypeString, alias: IdentityCo, SQL Type: sqlTypeOther, length: 50, nullable: true, editable: true)
Label (type: esriFieldTypeString, alias: Label, SQL Type: sqlTypeOther, length: 50, nullable: true, editable: true)
Symbol (type: esriFieldTypeString, alias: Symbol, SQL Type: sqlTypeOther, length: 254, nullable: true, editable: true)
DataSource (type: esriFieldTypeString, alias: DataSource, SQL Type: sqlTypeOther, length: 50, nullable: true, editable: true)
Notes (type: esriFieldTypeString, alias: Notes, SQL Type: sqlTypeOther, length: 254, nullable: true, editable: true)
MapUnitPol (type: esriFieldTypeString, alias: MapUnitPol, SQL Type: sqlTypeOther, length: 50, nullable: true, editable: true)
PTYPE (type: esriFieldTypeString, alias: PTYPE, SQL Type: sqlTypeOther, length: 50, nullable: true, editable: true)
Shape_Leng (type: esriFieldTypeDouble, alias: Shape_Leng, SQL Type: sqlTypeOther, nullable: true, editable: true)
Shape__Area (type: esriFieldTypeDouble, alias: Shape__Area, SQL Type: sqlTypeDouble, nullable: true, editable: false)
Shape__Length (type: esriFieldTypeDouble, alias: Shape__Length, SQL Type: sqlTypeDouble, nullable: true, editable: false)

Templates:

Is Data Versioned: false

Has Contingent Values: false

Supports Rollback On Failure Parameter: true

Last Edit Date: 6/24/2025 12:24:04 PM

Schema Last Edit Date: 6/24/2025 12:24:04 PM

Data Last Edit Date: 6/13/2025 5:31:11 PM

Supported Operations: Query Query Pivot Query Top Features Query Analytic Query Bins Generate Renderer Validate SQL Get Estimates ConvertFormat

Layer: Local_Geologies_FRED_WASH_geo (ID:1)