Bench Mark 1466 - Iron Post
USGS Datum = "YNKTN" (Yankton, South Dakota)
Datum based upon levels of the Missouri River Commission near Yankton, South Dakota.
Located near Newcastle, Nebraska
Photo by Gene Thomsen
Bench Mark 1466 - Iron Post
USGS Datum = "YNKTN" (Yankton, South Dakota)
Datum based upon levels of the Missouri River Commission near Yankton, South Dakota.
Located near Newcastle, Nebraska
Photo by Gene Thomsen