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State dataLand & Resources
Boundary
Published by Maryland Department of Information Technology · Updated 07/22/2025 · As needed
- Last updated
- 07/22/2025
- First published 07/22/2025
- Update frequency
- As needed
- Formats
- 4
- CSV, JSON, GeoJSON
- Coverage
- Maryland
- Statewide
About this dataset
Layers of geospatial data include orthoimagery, roads, grids, geographic names, elevation contours, hydrography, and other selected map features. This map depicts geographic features on the surface of the earth. One intended purpose is to support emergency response at all levels of government. The geospatial data in this map are from selected National Map data holdings and other government sources. Please note, data from neighboring states is included in this service in order to capture all of Maryland.
Feature Service:
https://mdgeodata.md.gov/imap/rest/services/Elevation/MD_USGSTopoQuads/MapServer/1
Files and access
Links open the official government source
- CSV downloadopendata.maryland.govCSV
- JSON (SODA API)opendata.maryland.govJSON
- GeoJSONopendata.maryland.govGeoJSON
- XMLopendata.maryland.govXML
API endpoint: https://opendata.maryland.gov/resource/tzp4-2vp8.json
Links open outside websites we do not control.
Frequently asked questions
- Who publishes Boundary?
- Maryland Department of Information Technology, part of State of Maryland, publishes this dataset on Maryland Open Data.
- How often is it updated?
- The publisher lists the update frequency as as needed. The last update was on 07/22/2025.
- How do I download it?
- It is available as CSV, JSON, GeoJSON, XML. Use the links in Files and access, which open the official government source.
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Where this catalog comes from
- Data.gov CatalogU.S. General Services Administration
- State and local open data portalsSocrata Discovery API
- State and city CKAN portalsCalifornia, Virginia, Boston, Houston and more
- Government ArcGIS Hub sitesCity and county GIS data
Catalog checked 10/24/2026
We list dataset descriptions only. Downloads and APIs link straight to the official government source, which holds the current version and its terms of use.
Source: Maryland Open Data and Data.gov · Last updated 10/24/2026 · Listing only; the data stays with the publisher