Coastal Information Directory
Simultaneously searches various databases throughout the country for coast-related data

Data Depot
All types of data for the world in Spatial Data Transfer Standard (SDTS) format

Environmental Protection Agency (EPA) Regional Offices
Access to EPA regional Geographic information system (GIS) databases

Environmental Systems Research Institute, Inc. (ESRI)
Arcdata online

Federal Geographic Data Committee
Coordinates the development of the National Spatial Data Infrastructure (NSDI), which encompasses policies, standards, and procedures for organizations to cooperatively produce and share geographic data

St. Charles City County Library Geographic Information
GIS information and spatial data sets

Guide to Mostly Free U.S. Geospatial and Attribute Data
Links to geospatial and attribute data providers

National Oceanic and Atmospheric Administration (NOAA)
Coastal Services Center (CSC)
Access to digital shoreline, ArcView® extensions, LIDAR

National Park Service Data
Available digital geospatial data and metadata
of the National Park Service units

NSDI Geospatial Data Clearinghouse
Searchable collection of over 100 spatial data servers

National States Geographic Information Council and the Federal Geographic Data Committee Framework Survey
Provides a snapshot of data being produced and used in state, regional, and local governments that could contribute to the building of a framework of locally produced, locally maintained data themes available to all

Natural Resources Conservation Service (NRCS) Data Resources
Distributes Natural Resources Inventory, plants, and soils data

The National Ocean Service (NOS) MapFinder
Web service provides direct Internet access to primary NOS imagery and data holdings.

NOAA Special Projects Office
Contains estuarine bathymetry data, medium resolution vector shoreline, shellfish register

USGS Coastal Extractor
Allows user to extract coastline segments bounded by a specified latitude/longitude range

USGS GeoData FTP File Access
Download land use and land cover, digital raster graphics, digital elevation models, and digital line graphs

USGS (Water Resources)
Land use data

USGS National Atlas of the United States of America
Provides high-quality, small-scale maps; the atlas will include authoritative digital national geospatial and geostatistical data sets

U.S. Fish and Wildlife Service (USFWS) National Wetlands Inventory (NWI)
Provides information about the characteristics, extent, and status of wetlands and deepwater habitats

XTOOLS Extension from Oregon Department of Forestry
ArcView Extension with many tools useful for GIS analysis

Remote Sensing Informational Links

Airborne Laser Mapping
A reference source on an emerging technology

Eurimage
Remote sensing links to companies, applications, and data providers

GIS Netsites
Resource site for GIS, GPS, and remote sensing information

Remote Sensing Specialty Group
List of remote sensing consultants