| Title | Date | Type | ||
|---|---|---|---|---|
| 76 |
 |
Georeferenced Logan, 1930: sheet 40 (.kmz file) | 2013 | Image |
| 77 |
|
Georeferenced Logan, 1930: sheet 41 (.kmz file) | 2013 | Image |
| 78 |
|
Georeferenced Logan, 1930: sheet 42 (.kmz file) | 2013 | Image |
| 79 |
|
Georeferenced Logan, 1930: sheet 43 (.kmz file) | 2013 | Image |
| 80 |
|
Georeferenced Logan, 1930: sheet 44 (.kmz file) | 2013 | Image |
| 81 |
|
Georeferenced Logan, 1930: sheet 45 (.kmz file) | 2013 | Image |
| 82 |
|
Georeferenced Logan, 1930: sheet 46 (.kmz file) | 2013 | Image |
| 83 |
|
Georeferenced Logan, 1930: sheet 47 (.kmz file) | 2013 | Image |