| | Title | Alternative Title |
|---|
| 151 |  | Plate 151 | Photograph of the approach to Cochetopa Pass up the canyon of East Pass Creek on 1 September 1853. |
| 152 |  | Plate 152 | Coo-che-to-pa Pass, leaving Sawatch Creek, composite drawing and photograph |
| 153 |  | Plate 153 | Lithograph based on the sketch of Cochetopa Pass up East Pass Creek |
| 154 |  | Plate 154 | Head of the first canon of the Grand River, composite sketch and lithograph |
| 155 |  | Plate 155 | Sketch of Cochetopa Pass |
| 156 |  | Plate 156 | Cochetopa Pass, lithograph by Gwinn Harris Heap |
| 157 |  | Plate 157 | Sangre de Cristo Pass, steel engraving. |
| 158 |  | Plate 158 | Daguerreotype of cliff in Cochetopa Pass. |
| 159 |  | Plate 159 | In Cochetopa Pass, photograph |
| 160 |  | Plate 160 | In Cochetopa Pass, composite drawing and photograph |
| 161 |  | Plate 161 | View to the east from Cochetopa Pass, Sept. 2, sketch. |
| 162 |  | Plate 162 | View to the east from Cochetopa Pass, Sept. 2, photograph. |
| 163 |  | Plate 163 | View east from Cochetopa Pass, composite sketch and photograph |
| 164 |  | Plate 164 | West end of Coo-che-to-pa Pass on Pass Creek, Sept. 3rd (sketch) |
| 165 |  | Plate 165 | West end of Coo-che-to-pa Pass on Pass Creek, photograph |
| 166 |  | Plate 166 | West end of Cochetopa Pass, composite sketch and photograph |
| 167 |  | Plate 167 | Pass Creek, sketch |
| 168 |  | Plate 168 | Pass Creek, photograph |
| 169 |  | Plate 169 | Pass Creek, composite sketch and photograph |
| 170 |  | Plate 170 | West of summit in Cochetopa Pass, sketch |
| 171 |  | Plate 171 | West of summit in Cochetopa Pass, photograph |
| 172 |  | Plate 172 | West of summit in Cochetopa Pass, composite sketch and photograph |
| 173 |  | Plate 173 | Two sketches of cliff areas |
| 174 |  | Plate 174 | Divide between the waters of the Gulf of Mexico and the Pacific Ocean, sketch |
| 175 |  | Plate 175 | Divide between the waters of the Gulf of Mexico and the Pacific Ocean, photographs |