Little Gunpowder Falls Terrain models

Terrain models representing river channel and terrestrial surface elevations were developed for use in 2D hydraulic modeling with HEC-RAS software. Channel bed elevations were determined from cross-sectional field surveys (Seneca Creek and Patapsco River) or manual corrections of the LIDAR data (Patuxent River and Little Gunpowder Falls) and integrated with the terrestrial LIDAR data.

Data and Resources

Field Value
accessLevel public
bureauCode {010:12}
catalog_@context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
catalog_conformsTo https://project-open-data.cio.gov/v1.1/schema
catalog_describedBy https://project-open-data.cio.gov/v1.1/schema/catalog.json
identifier USGS:5b9125bce4b0702d0e8085c4
metadata_type geospatial
modified 20220616
old-spatial -76.4541586445, 39.49345582, -76.4192485321, 39.5143611793
publisher U.S. Geological Survey
publisher_hierarchy Department of the Interior > U.S. Geological Survey
resource-type Dataset
source_datajson_identifier true
source_hash 05a23fba6420bc1eea9211000762511037084429
source_schema_version 1.1
spatial {"type": "Polygon", "coordinates": [[[-76.4541586445, 39.49345582], [-76.4541586445, 39.5143611793], [ -76.4192485321, 39.5143611793], [ -76.4192485321, 39.49345582], [-76.4541586445, 39.49345582]]]}
theme {geospatial}
Groups
  • AmeriGEOSS
  • National Provider
  • North America
Tags
  • amerigeo
  • amerigeoss
  • ckan
  • elevation
  • environment
  • flood-plain
  • flood-regime
  • floodplain
  • floods-and-hazard-preparedness
  • geo
  • geoss
  • hydrogeomorphology
  • hydrology
  • inundation
  • little-gunpowder-falls
  • maryland
  • national
  • north-america
  • patapsco-river
  • patuxent-river
  • seneca-creek
  • united-states
  • usgs-5b9125bce4b0702d0e8085c4
isopen False
license_id notspecified
license_title License not specified
maintainer Molly Van Appledorn
maintainer_email mvanappledorn@usgs.gov
metadata_created 2025-11-20T05:41:02.776194
metadata_modified 2025-11-20T05:41:02.776198
notes Terrain models representing river channel and terrestrial surface elevations were developed for use in 2D hydraulic modeling with HEC-RAS software. Channel bed elevations were determined from cross-sectional field surveys (Seneca Creek and Patapsco River) or manual corrections of the LIDAR data (Patuxent River and Little Gunpowder Falls) and integrated with the terrestrial LIDAR data.
num_resources 2
num_tags 23
title Little Gunpowder Falls Terrain models