| 1966 | not contested at AA level | | Wheatland | 3:47.2 | Hanna | 3:54.2 | Ten Sleep | 3:51.3 |
| 1965 | not contested at AA level | | Campbell County | 3:52.2 | Deaver-Frannie | 4:00.4 | Ten Sleep | 4:01.5 |
| 1964 | not contested at AA level | | St. Mary's | 3:55.1 | St. Stephens | 3:53.7 | Veteran | 3:59.6 |
| 1963 | not contested at AA level | | Douglas | 3:52.7 | Hulett | 3:56.5 | Veteran | 4:02.9 |
| 1962 | not contested at AA level | | Torrington | 3:53.0 | Glenrock | 3:54.6 | Glendo | 4:01.2 |
| 1961 | not contested at AA level | | Torrington | 3:57.6 | St. Stephens | 3:51.7 | LaGrange | 4:01.7 |
| 1960 | not contested at AA level | | Torrington | 3:44.5 | St. Stephens | 3:50.8 | LaGrange | 4:01.7 |
| 1959 | not contested at AA level | | Torrington | 3:45.6 | Upton | 3:48.8 | LaGrange | 4:02.9 |
| 1958 | not contested at AA level | | Powell | 3:53.25 | Pavillion | 4:03.9 | Carpenter | 4:00.0 |
| 1957 | not contested at AA level | | Rawlins | 3:48.8 | Upton | 3:57.7 | Fort Laramie | 4:12.5 |
| 1956 | Natrona County | 3:46.7 | Powell | 3:53.4 | Glenrock | 3:55.8 | | |
| not contested from 1931 to 1956 | | | | | | | | |
| 1930 | Natrona County | 4:09.5 | | | | | | |
| 1929 | Natrona County | 3:43.5 | | | | | | |
| 1928 | Natrona County | 3:48.0 | | | | | | |
| 1927 | Thermopolis | ??? | | | | | | |
| not contested from 1924 to 1926 | | | | | | | | |
| 1923 | Thermopolis | ??? | | | | | | |
| 1922 | Thermopolis | 3:48.8 | | | | | | |