Helderberg, New York

The same ground, surveyed 85 years apart. Drag the handle to wipe between them. Both sheets are United States Geological Survey originals; neither has been altered.

1900 1985

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.

• 1900 USGS Berne quadrangle1:62500, 2 printings
• 1903 USGS Berne quadrangle1:62500, 8 printings
• 1943 USGS Westerlo quadrangle1:24000, 3 printings
• 1946 USGS Westerlo quadrangle1:31680
• 1948 USGS Binghamton quadrangle1:250000
• 1950 USGS Binghamton quadrangle1:250000, 2 printings
• 1958 USGS Binghamton quadrangle1:250000
• 1963 USGS Binghamton quadrangle1:250000
• 1985 USGS Amsterdam quadrangle1:100000, 2 printings

Regional context, not property-specific evidence. The federal wildfire occurrence database lists 82 fires within 5 miles of Helderberg between 1992 and 2020, burning about 107 acres in total. 4 started naturally. 13 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:

• East Berne
• Berne
• South Berne
• Knox
• Thompsons Lake
• Reidsville

Every fire recorded in Albany County

Regional context, not property-specific evidence. Museums hold 2,508 specimens collected within 10 miles of Helderberg between 1855 and 1975: 1,726 Animalia, 485 Plantae, 270 Fungi, 21 Protozoa, 5 Chromista, 1 Unrecorded. 12 distinct Species records are shown. Collected by ?, A C. Frederick, A. A. Heller and others. Each is a physical object with a catalogue number, and each entry opens the museum's record. This is what was collected and kept, not a survey of what lives here - nothing can be concluded from a species being absent.

Image	Species	Year	Collected by	Where, as recorded
	Cephalozia media Lindb.	1898	Charles H. Peck	near Albany
	Coniothyrium Corda, 1840	1899	not recorded
	Corticium evolvens (Fr.) Fr.	1900	unknown	Altamont
	Phragmidium speciosum (Fr.) Bonord.	1855	Sartwell	E Novo-Eboraco [= New York]
	Culaea inconstans (Kirtland, 1840)	1860	W. Swartz	Krumkill, 1 mi. NE of Voorheesville
	Sorex fumeus fumeus G.M.Miller, 1895	1860	William J. Hamilton Jr.	Rensselaerville
	Abietinella abietina (Hedw.) M.Fleisch.	1863	C. F. Austin	Helderberg Mt.
	Anomodon viticulosus (Hedw.) Hook. & Taylor	1863	C. F. Austin	Helderberg Mts.
	Barbilophozia barbata (Schmidel ex Schreb.) Loeske	1863	C. F. Austin	In Mountain localities
	Barbula unguiculata Hedw.	1863	C. F. Austin	Helderberg Mts.
	Brachythecium rutabulum (Hedw.) Schimp.	1863	C. H. Peck	Helderberg Mountains
	Crossocalyx hellerianus (Nees ex Lindenb.) Meyl.	1863	C. F. Austin	Helderberg Mts.

All 2,508 specimens within 10 miles, at the Global Biodiversity Information Facility.

Regional context, not property-specific evidence. The federal mineral resources record lists 3 workings within 5 miles of Helderberg: 2 producers, 1 past producer. 2 still produce. What was taken out: Flagstone, 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.

Every working recorded in Albany 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 973326. 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.

Specimens. Global Biodiversity Information Facility (GBIF), https://www.gbif.org/. Only records licensed CC0 or CC BY are used. Records licensed CC BY-NC are excluded because this site carries advertising. Images are checked individually and any whose licence is non-commercial, no-derivatives or unreadable is refused.

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.