| Added_person: Freyhold, E. |
| General_note: See NYHS map 3060, Freyhold's redrawing of G.K. Warren's survey map. |
| General_note: Shows routes taken by exploratory parties. Ink ms. additions show state boundaries established after the printing, including the "Cession of the Shyennes and Arapahoes under Treaty of Feby 18, 1861." |
| General_note: "To accompany the Reports of the Explorations for a Railroad Route" |
| Extent: 1 printed map |
| Dimensions: 110 x 118 cm. |
| Added_date: 1858 |
| Medium: black ink, with color wash and color-ink additions, on paper backed with cloth |
| Added_corpname: Bureau of Topographical Engineers, Dept. of War |
| Added_person: Humphreys, A.A. |
| Local_note: There is a duplicate in the collection. |
