This is the feature map in the Changing Boundaries map exhibit that opens next week at the Arizona Historical Society Museum in Tucson. Interestingly the map is dated 1859, before the civil war but is not mentioned in the description of the secessionist Arizona in the wonderful book: How the States Got Their Shapes by Mark Stein.
The opening reception and panel discussion for the exhibition will be on Wednesday Evening June 8 from 6:00 to 8:00 pm at the Museum 949 E 2nd St Tuscon