Richmond Twp, Winona County, Minnesota
Figure 1. T.H. Lewis' 1884 surveying map of the Lone Bird Effigy Mound superimposed on an aerial photo.
T.H. Lewis surveyed this site on July 28, 1884. Lewis described this effigy in an article in Science (Vol. 106 1885):
"...[it] is near Richmond Station, on a terrace about 24 feet above the river. It is 76 ft. in an airline from tip to tip of the wings; the body, with head and tail, is 44 ft. in length. The body to the first joint of the wings is 15 inches in height. Formerly a number of ordinary [round] mounds existed in the immediate vicinity of this effigy."
The direction of the bird's flight is the direction of flow of the Mississippi.
Figure 2. Lone Bird Effigy Mound as shown in T.H. Lewis' 1885 article in Science (Vol. 106, p. 131).