15 USGS Directors, 1879 to present.
Image 17481 is a 388 by 520 pixel WebP
Uploaded:
Oct28 09
Last Modified: 2009-10-28 19:06:39
Permanent URL: https://serc.carleton.edu/download/images/17481/usgs_directors_1879_present..webp
The file is referred to in 1 page
ReuseThis item is offered under a Creative Commons Attribution-NonCommercial-ShareAlike license
http://creativecommons.org/licenses/by-nc-sa/3.0/ You may reuse this item for non-commercial purposes as long as you provide attribution and offer any derivative works under a similar license.