Listed on the National Register of Historic Places in 1982. 12 historic topographic surveys show this location, the earliest from 1902.
From the record
“The Union Mill Complex,, is located at the junction of Milton Avenue and Prospect Street in Ballston Spa, New York, United States. It is a complex of three late 19th-century brick buildings on a 4-acre lot, and the ruins of a dam.”
Wikipedia article Union Mill Complex, CC BY-SA 4.0.
One of 83 National Register listings published here for Saratoga County · listed in 1982 · category: Building.
National Register reference number.82003404- 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.
Then and now
1902 to 1989
The ground this property stands on, surveyed
87 years apart. Drag the handle to wipe between them. Both sheets are
United States Geological Survey originals; neither has been altered.
19021989
Fires near this property
305 since 1993
Regional context, not property-specific
evidence. The
federal wildfire occurrence database
lists 305 fires within 5 miles of Union Mill Complex
between 1993 and 2020, burning about 250 acres in total. 20 started naturally. 41 were 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.
Reported cause
Fires
Missing data/not specified/undetermined
138
Arson/incendiarism
41
Debris and open burning
34
Misuse of fire by a minor
24
Natural
20
Smoking
19
Equipment and vehicle use
18
Recreation and ceremony
9
Power generation/transmission/distribution
2
The most recent of
them, most recent first, with the day each was reported and the service
that recorded it.
Regional context, not property-specific
evidence. The federal mineral resources record lists
8 workings within 5 miles of Union Mill Complex: 6 past producers, 2 producers.
2 still produce. What was taken out: Limestone, General, Sand and Gravel, Construction, 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.
Regional context, not property-specific
evidence. The National Weather Service names
Ballston Spa, the town this property stands in, in 35 storm reports between 1997 and 2022: 20 thunderstorm wind, 11 hail, 2 flood, 1 lightning.
The reports record 4 injuries. 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.
Two girls were struck by lightning near a main gate at the Saratoga County Fairgrounds in Ballston Spa. One girl, age 15, was rushed to the intensive care unit at Albany Medical Center, while the other female, age 34, was rushed to Saratoga Hospital.||The two girls were standing near a main gate at the Fairgrounds when lightning struck a nearby tree during a thunderstorm.
Emergency management reported flooding along the Kayaderosseras Creek due to an ice jam. Ralph Street Bridge was closed at Kent Street in the village of Ballston Spa due to rising waters.
Multiple trees or wires were downed or snapped in the Village of Ballston Spa, including in the vicinity of Brookline Road, Middleline Road, Ballston Avenue, Route 50, Charlton Road and Route 67. Power was reported out in some areas.
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.
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.
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.
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.
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