THE IONA LAND BRIEF
Land in the
River Breaks setting.
Iona township has 127.9 square miles of land in Lyman County. Its Census reference point is in River Breaks, within Northwestern Great Plains.
Rolling semiarid plains are punctuated by buttes, badlands and river breaks. Much of the regional terrain developed on sandstone, siltstone and shale without the leveling influence of continental glaciers.
Regional context: Northwestern Great Plains ↗ · Classification at the Census reference point
Iona and Lyman County
Iona is associated with Lyman County in the Census boundary data. Start with the parcel’s tax bill to match the property to that jurisdiction, then confirm which government handles its land use.
Iona by land and water
The Census records 9.82 square miles of water within Iona, or 7.1% of its total area. It is 3.3 percentage points higher than the 3.8% recorded for Lyman County. This is geographic context; waterfront status and usable land must be checked at the parcel.
For scale, Iona township has 3.1 times the land area of nearby Brule township (41.9 square miles). These areas describe boundaries, not comparable property prices.

