BlockDunbar, Iowa
8 topographic sheets cover this place, the earliest surveyed in 1954 and the latest in 1984. It stands in Greencastle Township. It lies in ZIP code area 50106. The Survey maps it on the Gilman quadrangle. It stands 932 feet above sea level.
Topographic sheets covering this place
6 surveys from 8 printed sheetsMatched 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.
- 1954 USGS Des Moines quadrangle1:250000, 2 printings
- 1956 USGS Des Moines quadrangle1:250000
- 1957 USGS Des Moines quadrangle1:250000
- 1969 USGS Des Moines quadrangle1:250000
- 1980 USGS Gilman quadrangle1:24000
- 1984 USGS Grinnell quadrangle1:100000, 2 printings
Mines and quarries near this place
4 within 5 milesRegional context, not property-specific evidence. The federal mineral resources record lists 4 workings within 5 miles of Dunbar: 2 producers, 2 past producers. 2 still produce. What was taken out: Stone, Crushed/Broken, 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.
| Where | Site | Commodity | Status | Recorded |
|---|---|---|---|---|
| Unknown | Sand and Gravel, Construction | Past Producer | ||
| Ash Quarry | Stone, Crushed/Broken | Past Producer | ||
| Ferguson Mine | Stone, Crushed/Broken | Producer | ||
| Ferguson Quarry | Stone, Crushed/Broken | Producer |
Storms near this place
5 since 1995Regional context, not property-specific evidence. The National Weather Service names Dunbar in 5 storm reports between 1995 and 2021: 2 hail, 1 flood, 1 flash flood, 1 thunderstorm wind. 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.
| When | Event | Place named | Harm | What the report says |
|---|---|---|---|---|
| September 2018 | Flood | Dunbar | $50,000 | Marshall County 911 reported the shoulder washed out of Hwy 146 south of 290th St. |
| December 2021 | Thunderstorm Wind | Dunbar | $25,000 | Public reported snapped power poles. Time estimated from radar. |
| September 2018 | Flash Flood | Dunbar | $20,000 | Marshall County 911 reported the shoulder washed out on Hwy 146 south of 290th St. |
| April 1995 | Hail | Dunbar | $2,000 | no account filed |
| May 2013 | Hail | Dunbar | - | no account filed |
Nearest settlements
The eight closest, with where each one stands in the county. Distances are straight-line, computed from the Geographic Names Information System coordinates.
Elsewhere
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.
| Wikipedia article on Dunbar | An encyclopaedic summary. Its text is share-alike, so it is linked here rather than copied. |
| Wikidata item Q5314121 | The structured record the population and elevation above come from. Public domain (CC0). |
Provenance
This settlement is recorded in the Geographic Names Information System as feature 464524. 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.
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.