Persistent Url:

http://ngmdb.usgs.gov/ngmdb/ngm_catalog.ora.html

Subjects:

Geology & Geophysics / Open/Free Access

Coverage:

Updated:

Full Text: Yes

Provider:  Generic

Description:

Geology indexing/full-text database that provides maps, images and data from the U.S. Geological Survey and cooperating agencies. Much of the recent content may be downloaded. On its own platform.

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