National Cartographic Information Center (Continued) 
Other maps include coal investigation maps, oil and natural gas maps, 
geophysical investigation maps, and maps in the Miscellaneous Geologic Inves- 
tigation Series which include the following types: 
(a) 
(b) 
(c) 
(d) 
(e) 
(£) 
(g) 
(h) 
(i) 
(5) 
(k) 
ruptures. 
(1) 
(m) 
(n) 
(o) 
(p) 
(q) 
(r) 
(s) 
(t) 
(u) 
Geologic maps, in many cases in preliminary reconnaissance form. 
Geologic maps of the moon, Apollo land sites, etc. 
Glacial features and surficial deposits. 
Bedrock topography and subcrop of selected beds. 
Engineering and surficial geologic maps. 
Photogeologic maps. 
Geologic and biostratigraphic maps. 
Maps of recently active fault breaks. 
Geochemical maps. 
Maps showing relation of land and submarine topography. 
Maps showing locations of fault traces and historic surface 
Earthquake epicenter maps. 
Maps of ocean floors, continental shelves, and slopes. 
Maps of locations of Pleistocene lakes. 
Geologic and crustal cross sections of the United States. 
Gravity maps. 
Magnetic maps. 
Maps showing radiometric ages of rocks. 
Maps of world subsea mineral resources. 
Maps showing distribution of landslides. 
Maps of shoreline features. 
Still more maps exist in the Mineral Investigations Resources series and the 
Special Geological Map series. 
Additional Information: The National Cartographic Information Center 
(NCIC), established by the USGS in 1974, pro- 
vides a national information service to make 
cartographic data of the United States more 
easily accessible to the public and to various 
Federal, state, and local agencies. At present, 
more than 30 Federal agencies collect and 
prepare cartographic data. These data include 
more than 1.5 million maps and charts, 25 mil- 
lion aerial and space photographs, records on 
1.5 million geodetic control points, and a 
growing collection of map data in computer- 
compatible form. 
VIII-6 
