By
Kenneth R. Dees, P.E., CFM
Copyright © 2024, All Rights Reserved
MAPPING RESOURCES
Much of the information we utilize is provided by local, state and federal government agencies. We thought it would be useful to provide a list of map servers and other sources of essential geographic information which we commonly utilize in addition to field-surveyed information provided by land surveyors.
FEMA Flood Map Service Center – Click to Access
The FEMA Flood Map Service Center (MSC) is the official public source for flood hazard information produced in support of the National Flood Insurance Program (NFIP). Use the MSC to find your official flood map, access a range of other flood hazard products, and take advantage of tools for better understanding flood risk.
Texas Geographic Information Office (TxGIO) – Click to Access Data Hub
For those working in Texas, TxGEO is an invaluable resource. TxGEO is a reliable and unique state resource that provides high quality historic and current geospatial data products, education and training, while advancing the GIS Community through collaboration, expertise, cost-sharing initiatives and exceptional customer service.
Google List of U.S. State Plane Coordinate Systems – Click to Access
State Plane Coordinate System zones (ESRI) with EPSG numbers for associated projections
USGS – Topographic Map Collection – Click to Access
The maps shown through topoView are from the USGS’s US Topo series and earlier Historical Topographic Map Collection (HTMC). The term “US Topo” refers specifically to quadrangle topographic maps published in 2009 and later. These maps are modeled on the familiar 7.5-minute quadrangle maps of the period 1947-1992, but are mass-produced from national GIS databases on a repeating cycle. US Topo maps repackage geographic information system (GIS) data in traditional map form. This benefits non-specialist map users, as well as applications that need traditional maps
USGS -National Hydrography Dataset (NHD) – Click to Access
The USGS National Hydrography Dataset (NHD) Downloadable Data Collection from The National Map (TNM) is a comprehensive set of digital spatial data that encodes information about naturally occurring and constructed bodies of surface water (lakes, ponds, and reservoirs), paths through which water flows (canals, ditches, streams, and rivers), and related entities such as point features (springs, wells, stream gages, and dams).
USDA Natural Resources Conservation Service (NRCS) – Click to Access