Built in 1921 (Neoclassical architecture). Listed on the National Register of Historic Places in 2014. 16 historic topographic surveys show this location, the earliest from 1892.
From the record
“Shadowcliff, also known as the Fellowship of Reconciliation Headquarters, is a historic home located at Upper Nyack, Rockland County, New York. It was built in 1921, and is a large two-story, Classical Revival style masonry dwelling.”
Wikipedia article Shadowcliff, CC BY-SA 4.0.
One of 93 National Register listings published here for Rockland County · listed in 2014 · category: Building · built in 1921, Neoclassical architecture.
National Register reference number. 14000131 - assigned by the National Park Service when the property was listed.
Fires near this property
1,262 since 2000
Regional context, not property-specific
evidence. The
federal wildfire occurrence database
lists 1,262 fires within 5 miles of Shadowcliff
between 2000 and 2020, burning about 1,310 acres in total. 93 started naturally. 74 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
771
Smoking
166
Natural
93
Arson/incendiarism
74
Recreation and ceremony
59
Equipment and vehicle use
45
Debris and open burning
40
Power generation/transmission/distribution
7
Misuse of fire by a minor
5
Other causes
1
Railroad operations and maintenance
1
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
7 workings within 5 miles of Shadowcliff: 4 past producers, 2 producers, 1 occurrence.
2 still produce. What was taken out: Stone, Crushed/Broken, Lead, Copper, Silver, Iron, Chromium, Phosphorus-Phosphates. 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
Upper Nyack, the town this property stands in, in 7 storm reports between 2008 and 2024: 3 thunderstorm wind, 2 hail, 1 flash flood, 1 lightning.
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.
Lightning struck a home in Airmont, causing a man to move across an interior room. He was not injured. Lightning also tore off shingles and bowed a wall of a neighboring house.
Multiple reports of downed trees (and branches) and power lines in the town of Valley Cottage. Some locations include Milburn Court and Flower Lane, Kings Highway between Maple and Old Mill, and Old Mill and Boxberger.
United States Geological Survey topographic
sheets whose coverage includes this point. Matched by taking the coordinate the National Park Service records for this property, 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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