| Description |
electronic maps : HTML file |
| Current Frequency |
Updated Sept. 14, 2005- |
| Publication Date |
Began in 2002? |
| Note |
Relief shown by shading. |
| System Details |
Mode of access: Internet from the USGS webv site. Address as of 7/29/08: http://nationalmap.gov/; current access via PURL. |
| Note |
Title from home page last updated July 26, 2006 (viewed on July 29, 2008). |
| Subject |
North America -- Maps.
|
| Note |
Title on map: National map viewer |
| Gpo Item No. |
0619-G-01 (online) |
| Sudoc No. |
I 19.79:N 19 |
|
