Genre
Topographic maps
Maps
3,312
Quadrangle maps
191
Geological maps
65
Remote-sensing maps
37
Tourist maps
31
Thematic maps
21
Atlases
20
Bathymetric maps
15
Databases
8
Road maps
6
Guidebooks
5
Index maps
4
Periodicals
3
Remote-sensing images
3
Photogrammetric maps
2
Aerial photographs
1
Digital maps
1
Early works to 1800
1
Facsimiles
1
Geological cross-sections
1
Handbooks and manuals
1
Indexes
1
Military maps
1
Outline maps
1
Pictorial maps
1
Relief models
1
Specimens
1
Technical reports
1