Iona, South Dakota

Matched by testing this settlement's coordinate against the published boundary of every sheet in the United States Geological Survey's historical collection. Each opens the scanned sheet at the Survey.

• 1940 USGS Iona quadrangle1:62500
• 1944 USGS Iona quadrangle1:62500, 2 printings
• 1955 USGS Mitchell quadrangle1:250000, 2 printings
• 1959 USGS Mitchell quadrangle1:250000, 2 printings
• 1974 USGS Iona quadrangle1:24000
• 1986 USGS Chamberlain quadrangle1:100000, 2 printings
• 1990 USGS Mitchell quadrangle1:250000

Regional context, not property-specific evidence. The federal wildfire occurrence database lists 4 fires within 5 miles of Iona between 2005 and 2014, burning about 363 acres in total. None started naturally. None was recorded as arson. Distance is straight-line from the map coordinates, so a fire counted here may appear on a neighbouring settlement's page as well.

The most recent of them, most recent first, with the day each was reported and the service that recorded it.

Every fire recorded in Lyman County

Regional context, not property-specific evidence. The National Weather Service names Iona in 36 storm reports between 1996 and 2024: 20 hail, 15 thunderstorm wind, 1 flash flood. No death or injury is recorded in these reports. Each account below is quoted exactly as the forecast office filed it, from the NOAA Storm Events Database, and each date opens the federal record of that event.

Every storm recorded in Lyman County

The eight closest, with where each one stands in the county. Distances are straight-line, computed from the Geographic Names Information System coordinates.

Matched on this settlement's Geographic Names Information System number rather than its name, so it cannot be a different place of the same name in another state.

This settlement is recorded in the Geographic Names Information System as feature 1255766. The sheet list is computed by point-in-boundary test against the United States Geological Survey's historical topographic inventory. Both are works of the United States government and carry no copyright under 17 U.S.C. 105.

Wildfire. Short, Karen C. 2022. Spatial wildfire occurrence data for the United States, 1992-2020 [FPA_FOD_20221014]. 6th Edition. Fort Collins, CO: Forest Service Research Data Archive. https://doi.org/10.2737/RDS-2013-0009.6 Collected with United States Government funding and usable without additional permissions or fees.

Storms. NOAA National Centers for Environmental Information, Storm Events Database https://www.ncei.noaa.gov/stormevents/ A work of the United States government, no copyright under 17 U.S.C. 105. Narratives are quoted verbatim from the National Weather Service report and are not edited or summarised.