Piqua-Caldwell Historic District

Listed on the National Register of Historic Places in 1985. 6 historic topographic surveys show this location, the earliest from 1914.

From the record

One of 45 National Register listings published here for Miami County · listed in 1985 · category: District.

Sources: the case file at the National Archives · the National Register database, National Park Service

The listing

Address. N. Main, Wayne, Downing, Caldwell Sts; W. Ash to Camp Sts., Piqua
When was it listed? January 1985
Category. district
National Register reference number. 85000069 - the number the National Park Service assigned this property when it was listed, and the key its nomination file is catalogued under at the National Archives.

Mines and quarries near this property

10 within 5 miles

Regional context, not property-specific evidence. The federal mineral resources record lists 10 workings within 5 miles of Piqua-Caldwell Historic District: 6 producers, 4 past producers. 6 still produce. What was taken out: Sand and Gravel, Construction, Limestone, General, Clay, Stone, Crushed/Broken. Distance is straight-line from the map coordinates, so a quarry counted here may appear on a neighbouring settlement's page as well.

Site	Commodity	Status	Recorded
Hanover Pit	Clay	Producer
Piqua Minerals	Stone, Crushed/Broken	Producer
Miami River Quarry	Limestone, General	Past Producer	Sedimentary
Piqua Quarries	Limestone, General	Past Producer	Sedimentary
Eldean Pit	Sand and Gravel, Construction	Past Producer	Sedimentary
Eldean Pit	Sand and Gravel, Construction	Producer
Ernst Gravel Co Plant No 1 & Pit	Sand and Gravel, Construction	Producer
Pique Plant	Sand and Gravel, Construction	Past Producer	Sedimentary
Spring Creek Pit	Sand and Gravel, Construction	Producer
Spring Creek Quarry	Sand and Gravel, Construction	Producer

Every working recorded in Miami County

Maps showing this location

6 surveys

United States Geological Survey topographic sheets whose coverage includes this point. Matched by taking the middle of the area the National Park Service maps for this listing, then testing that coordinate against the published boundary of every sheet.

1914 USGS Troy quadrangle1:62500 - 2 printings
1944 USGS Troy quadrangle1:62500
1953 USGS Muncie quadrangle1:250000 - 5 printings
1956 USGS Muncie quadrangle1:250000
1961 USGS Piqua East quadrangle1:24000 - 4 printings
1986 USGS Piqua quadrangle1:100000 - 3 printings

Listed places nearby

6 within 8 miles

Other National Register properties close enough to walk or drive between, ordered by distance from this one. Both positions come from the same geocoding pass that matched these properties to their map sheets.

Property	Distance	Listed
S. Zollinger Company Building	0.1 miles	2015
Fort Piqua Hotel	0.3 miles	1974
Piqua High School	0.6 miles	1996
York Rial House	0.8 miles	1986
African Jackson Cemetery	0.9 miles	1982
Arrowston	1.2 miles	1980

Sources for this property

National Archives record	The nomination case file for reference 85000069 in Record Group 79.
Miami County	All 45 listed properties in this county.

Provenance

Listing record. National Park Service National Register of Historic Places, listed-properties dataset, current to 2026-05-22.
Map join. Address geocoded through the United States Census geocoder, then tested against the published boundary of every sheet in the USGS Historical Topographic Map Collection.
How this page is made. Listing fields come from federal records; map-sheet coverage is a labelled coordinate-to-boundary calculation, not a source-field claim.
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.