Maps...: Map Information

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Map Layer Information

All mapping layers viewable on the interactive and static maps are listed below. You may click on the buttons under the Information column to retrieve more detailed information on each data set. This information is commonly referred to as Metadata, or "data about the data". Metadata can usually answer all questions related to map features.

		Frequently Anticipated Questions - Click to view/download an Adobe .pdf document that answers the most commonly asked questions.

		Metadata - Click to view/download an Adobe .pdf document of FGDC (Federal Geographic Data Committee) standard Metadata.

Land Features	Last Update	Info	Notes
Buildings (major)	04-15-2004		building ft prints > 600 sqft
Buildings (minor)	04-15-2004		building ft prints < 600 sqft
Ponds, Lakes, Dams	04-15-2004
Slope	New
Sport Fields	04-15-2004
Streams (Major)	02-01-2002		streams > 10 ft wide
Streams (Minor)	02-01-2002		streams < 10 ft wide
Swimming Pools	04-15-2004
Tree Line	04-15-2004

Land Character	Last Update	Info	Notes
Soils	2003		based on AA County
Topography	New		2 ft interval LIDAR
Watersheds	10-09-2001

Planning	Last Update	Info	Notes
BWI Height Restriction
BWI Noise Area
Preservation Easements	09-21-2004
Site Development Plans	09-17-2004
Subdivisions in Process	09-17-2004
Zoning	09-08-2004

Political Features	Last Update	Info	Notes
Columbia Villages	05-14-2004
Congressional Districts	06-21-2002
Council Districts	04-02-2004
Election Precincts	06-21-2002		voting Areas
Legislative Districts	06-21-2002

Property Information	Last Update	Info	Notes
Address Points	09-17-2004
Common Points	09-15-2004		business locations
Parks and Open Space	07-21-2004
Property (Cadastral)	07-14-2004

School Districts	Last Update	Info	Notes
Elementary	09-15-2004
Middle	09-15-2004
High	09-15-2004

Transportation	Last Update	Info	Notes
Driveways (paved)	04-15-2004
Driveways (non paved)	04-15-2004
Parking Lots (paved)	04-15-2004
Parking Lots (non paved)	04-15-2004
Railroad Tracks	02-01-2002
Road Edge of Pavement	04-15-2004
Road (non paved)	04-15-2004
Street Centerline	08-01-2004
Sidewalks (major)	04-15-2004		sidewalks > 6 ft wide
Sidewalks (minor)	04-15-2004		sidewalks < 6 ft wide
Trails and Pathways	04-15-2004

Utilities	Last Update	Info	Notes
Water Plan Service Area	02-25-2004
Sewer Plan Service Area	02-25-2004
Metropolitan District	09-15-2004

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