Ontario, Indiana

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.

• 1947 USGS Lagrange quadrangle1:24000, 2 printings
• 1953 USGS Fort Wayne quadrangle1:250000, 4 printings
• 1956 USGS Fort Wayne quadrangle1:250000, 2 printings
• 1960 USGS Lagrange quadrangle1:24000, 3 printings
• 1985 USGS Elkhart quadrangle1:100000, 2 printings
• 1993 USGS Lagrange quadrangle1:24000

Illustrated Historical Atlas of LaGrange County, Indiana., published 1874 has no passage naming this settlement, which was common for smaller places. Its township is covered in full.

Regional context, not property-specific evidence. The federal wildfire occurrence database lists 1 fire within 5 miles of Ontario in 2019, burning about 1 acre 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.

Settlements close enough to share some of these fires:

• River Oaks
• Star Mill
• Twin Lakes

Every fire recorded in LaGrange County

Regional context, not property-specific evidence. The federal mineral resources record lists 2 workings within 5 miles of Ontario: 1 producer, 1 past producer. 1 still produces. What was taken out: Stone, Sand and Gravel, Construction. Distance is straight-line from the map coordinates, so a quarry counted here may appear on a neighbouring settlement's page as well.

Regional context, not property-specific evidence. The National Weather Service names Ontario in 3 storm reports between 2001 and 2018: 2 thunderstorm wind, 1 hail. 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 LaGrange 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 440663. 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.

Mines and quarries. USGS Mineral Resources Data System (MRDS) https://mrdata.usgs.gov/mrds/ A work of the United States government, no copyright under 17 U.S.C. 105.

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.