These were part of the files of the Stream and Valley Sedimentation Section, 1939-40. In 1965 they were kept in the Information Division, S.C.S., Agriculture Department South Building, Washington, D.C. Prints are in possession of S.C. Happ, USDA Sedimentation Laboratory, Oxford, Mississippi.
| File No. | Photographer |
|---|---|
| 8971 and 8972 | Happ |
| 8995 and 8996 | Happ |
| WR-10-22 | |
| WR-10-39 to WR-10-47 | Moser |
| WR-10-50 to WR-10-72 | Moser |
| WR-10-80 and WR-10-81 | Moser |
| WR-10-123 | Moser |
| WR-10-266 | Happ |
| WR-10-274 to WR-10-280 | Happ |
| WR-10-1521 | |
| WR-10-1524 | |
| WR-10-1526 and WR-10-1527 |
There may be additional Beaver Creek photos, for which identification is not immediately available, bearing numbers preceding WR-10-22, or WR-10-48 or 49, WR-10-1522, 1523, or 1525, or following WR-10-1527.