NSDI Clearinghouse Network

Overview
The NSDI Clearinghouse Network is a community of distributed data providers who publish collections of metadata that describe their map and data resources within their areas of responsibility, documenting data quality, characteristics, and accessibility. Each metadata collection, known as a Clearinghouse Node, is hosted by an organization to publicize the availability of data within the NSDI. The metadata in these nodes is searched by the geodata.gov portal to provide quick assessment of the extent and properties of available geographic resources.

Source

 * NSDI Clearinghouse Network.

External link

 * [NSDI Clearinghouse Network Questions & Answers.