Photograph by Unidentified photographer, Public domain. Via
Wikimedia Commons.
William Sydney Mount House
A National Historic Landmark. Listed on the National Register of Historic Places in 1966. 16 historic topographic surveys show this location, the earliest from 1902.
From the record
“The William Sidney Mount House is a historic house at 1556 Stony Brook Road in Stony Brook, New York. Built in 1725 and enlarged in 1810, it was designated a National Historic Landmark in 1965 as the lifelong home of artist William Sidney Mount (1807-1868).”
Wikipedia article William Sidney Mount House, CC BY-SA 4.0.
One of 338 National Register listings published here for Suffolk County · listed in 1966 · category: Building · a National Historic Landmark.
National Register reference number.66000575- 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.
Fires near this property
770 since 2000
Regional context, not property-specific
evidence. The
federal wildfire occurrence database
lists 770 fires within 5 miles of William Sydney Mount House
between 2000 and 2020, burning about 295 acres in total. 59 started naturally. 70 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
575
Arson/incendiarism
70
Natural
59
Equipment and vehicle use
18
Debris and open burning
15
Smoking
14
Misuse of fire by a minor
9
Power generation/transmission/distribution
7
Recreation and ceremony
3
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
6 workings within 5 miles of William Sydney Mount House: 3 past producers, 1 plant, 1 unknown, 1 producer.
2 still produce. What was taken out: Sand and Gravel, Construction, Titanium, Metal, Titanium. 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
Stony Brook, the town this property stands in, in 14 storm reports between 2000 and 2024: 9 thunderstorm wind, 4 flash flood, 1 hail.
The reports record 1 injury. 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.
A trained spotter measured a gust of 67 mph and several large branches were reported down throughout the West Meadow Beach neighborhood of Stony Brook.
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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