Willow Grove, New York

The same ground, surveyed 95 years apart. Drag the handle to wipe between them. Both sheets are United States Geological Survey originals; neither has been altered.

1891 1986

Matched 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.

• 1891 USGS Ramapo quadrangle1:62500
• 1893 USGS Ramapo quadrangle1:62500, 6 printings
• 1910 USGS Ramapo quadrangle1:62500, 6 printings
• 1931 USGS Ramapo quadrangle1:62500, 2 printings
• 1931 USGS Ramapo quadrangle1:48000
• 1938 USGS Ramapo quadrangle1:62500, 3 printings
• 1950 USGS Scranton quadrangle1:250000
• 1953 USGS Scranton quadrangle1:250000
• 1955 USGS Thiells quadrangle1:24000, 4 printings
• 1959 USGS Scranton quadrangle1:250000, 2 printings
• 1962 USGS Scranton quadrangle1:250000, 2 printings
• 1965 USGS Scranton quadrangle1:250000, 2 printings
• 1986 USGS Middletown quadrangle1:100000, 2 printings

Regional context, not property-specific evidence. The federal wildfire occurrence database lists 750 fires within 5 miles of Willow Grove between 1995 and 2020, burning about 2,591 acres in total. 32 started naturally. 79 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.

The most recent of them, most recent first, with the day each was reported and the service that recorded it.

Settlements close enough to share some of these fires:

• Cedar Flats
• Thiells
• Buckberg
• Bulsontown
• Felters Corners
• Stony Point

Every fire recorded in Rockland County

Regional context, not property-specific evidence. The federal mineral resources record lists 10 workings within 5 miles of Willow Grove: 7 past producers, 2 producers, 1 occurrence. 2 still produce. What was taken out: Clay, Stone, Crushed/Broken, Copper, Zirconium. Distance is straight-line from the map coordinates, so a quarry counted here may appear on a neighbouring settlement's page as well.

Every working recorded in Rockland County

Regional context, not property-specific evidence. The National Weather Service names Willow Grove in 3 storm reports between 2017 and 2023: 1 thunderstorm wind, 1 tornado, 1 flash flood. 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.

Every storm recorded in Rockland County

The eight closest, with where each one stands in the county. Distances are straight-line, computed from the Geographic Names Information System coordinates.

This settlement is recorded in the Geographic Names Information System as feature 971356. 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.

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.