1:100,000-scale digital line graph (DLG) data
1:100,000-scale digital line graph (DLG) data hydrography and transportation US Geodata. [computer file]
- Optional format. March 1991.
- Washington Earth Science Information Center 1991.
- 1 computer laser optical disk 12 cm.
Disk Characteristics: CD-ROM
doc92000560
Hydrography--Databases.
CD-ROM Fed. Doc.
Transportation--Databases.
Disk Characteristics: CD-ROM
doc92000560
Hydrography--Databases.
CD-ROM Fed. Doc.
Transportation--Databases.