1900s (20th Century) Maps of Iona, South Dakota
Explore 7 historic maps of Iona from the 1900s (20th Century). These maps offer a rare glimpse into what life looked like during the 1900s — showing old roads, neighborhoods, homes, and landmarks that have changed or disappeared over time.
Whether you're researching your family's past, planning a metal detecting trip, or studying how Iona's landscape evolved across the 1900s, these high-resolution maps are a powerful tool for exploring the history of this region.
- Focus on a specific era: All maps on this page are from the 1900s, giving you a focused view of this time period.
- See what’s changed: Compare century-old streets, trails, and buildings to today's modern landscape using overlays and satellite layers.
- Research with precision: Use these maps for genealogy, historical research, land use analysis, or educational projects.
- View, download, or print: Maps are fully viewable online in high resolution, and can be downloaded or printed for your own records.
Start exploring Iona's history through authentic maps from the 1900s. This is your window into the past.
Iona, SD maps
(7)- 1940 Map of Iona, 1958 Print1940 Iona1958 Print · USGSIn the early 1940s, the Missouri and White Rivers shaped life across South Dakota's Lyman and Brule counties. Genealogists can trace nearly twenty rural schoolhouses and cemeteries like Iona Cem, alongside landmarks such as Twilight Butte and the settlement of Iona.
- 1944 Map of Iona1944 Iona1944 Print · USGSLyman County in the early 1940s reveals a landscape of isolated homesteads and river-bottom farms along the Missouri River. Genealogists and local historians can trace family roots through numerous country schools like Cable Sch and markers such as Iona Cem and Peterson.2 unique versions available
- 1955 Map of Mitchell, 1973 Print1955 Mitchell1973 Print · USGSThe Missouri River valley undergoes a massive transformation in the mid-1950s as the Fort Randall Dam creates Lake Francis Case. You can trace the rail lines of the Chicago Milwaukee St Paul and Pacific through Mitchell or locate local landmarks like Butler Town Hall.2 unique versions available
- 1959 Map of Mitchell1959 Mitchell1959 Print · USGSSouth Dakota’s river and rail corridors come alive in the late fifties as the Missouri River valley undergoes dramatic change. Genealogists and historians can trace family roots through numerous small towns and schools such as Academy, Stickney, and Gregory.2 unique versions available
- 1974 Map of Iona, 1977 Print1974 Iona1977 Print · USGSIona and the surrounding high prairie of Lyman County appear here in the mid-seventies, just as the local highway system was well established. Researchers can locate the Iona Cem, trace the drainage of Nicholas Creek, and find landmarks like Twilight Butte.
- 1986 Map of Chamberlain1986 Chamberlain1986 Print · USGSCentral South Dakota during the mid-eighties shows a landscape shaped by the Missouri River and the rise of Interstate 90. Researchers can trace the development of river towns like Chamberlain and Oacoma or locate remote landmarks like Bijou Hills and Hamill.2 unique versions available
- 1990 Map of Mitchell, 1991 Print1990 Mitchell1991 Print · USGSThe Missouri River and the surrounding South Dakota plains are captured here in the early nineties, showing a landscape shaped by water and wire. Genealogists and historians can trace the gridded townships from Mitchell to the Bijou Hills, locating sites like the Platte Colony and Academy.
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