173 years in pictures
Expedition Island is a National Historic Landmark, the National Register’s top tier. Its founding year, 1853, is the earliest of any Wyoming town we grade.
Census counts: 106 in 1870, 11,825 in 2020. The archive holds 6 old photos and papers going back to 1858 and 2 maps from 1961 on.
5 places on the National Register of Historic Places.
- 1853Green River is settled








