Blackfork Junction, Ohio

The same ground, surveyed 90 years apart. Drag the handle to wipe between them. Both sheets are United States Geological Survey originals; neither has been altered.

1912 2002

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.

• 1912 USGS Oak Hill quadrangle1:62500, 2 printings
• 1957 USGS Huntington quadrangle1:250000, 3 printings
• 1960 USGS Huntington quadrangle1:250000
• 1961 USGS Gallia quadrangle1:24000, 3 printings
• 1981 USGS Ironton quadrangle1:100000
• 2002 USGS Gallia quadrangle1:24000

Regional context, not property-specific evidence. The federal wildfire occurrence database lists 94 fires within 5 miles of Blackfork Junction between 1992 and 2020, burning about 1,054 acres in total. 1 started naturally. 19 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:

• Monroe
• Hitchcock
• Horeb
• Oak Hill
• Mabee Corner
• McCoy

Every fire recorded in Jackson County

Regional context, not property-specific evidence. Museums hold 134 specimens collected within 10 miles of Blackfork Junction between 1929 and 1974: 101 Fungi, 16 Plantae, 16 Animalia, 1 Protozoa. 12 distinct Species records are shown. Collected by A. M. Evans, Bartley, F., Beach, S. (Sam) 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
	Cyathus stercoreus (Schwein.) De Toni	1936	Cooke, William Bridge	Dark Hollow
	Daedalea ambigua Berk.	1936	Cooke, William Bridge	Dark Hollow
	Trametes robiniophila Murrill	1936	Cooke, William Bridge	Dark Hollow
	Campostoma anomalum anomalum	1929	Trautman, M. B. (Milton Bernard) & Foster, R. (Robert)	Little Scioto River, within Ecentral Madison township, near South Webster, Madison township
	Lythrurus fasciolaris (Gilbert, 1891)	1929	Trautman, M. B. (Milton Bernard) & Foster, R. (Robert)	Little Scioto River, within Ecentral Madison township, near South Webster, Madison township
	Enteridium rozeanum (Rostaf.) Wingate, 1889	1932	Cooke, William Bridge	Dark Hollow
	Leptotus muscigenus (Bull.) Maire	1932	Cooke, William Bridge	Dark Hollow
	Mycena alcalina (Fr.) P.Kumm.	1932	Cooke, William Bridge	Dark Hollow
	Mycena corticola (Pers.) Gray	1932	Cooke, William Bridge	Dark Hollow
	Perenniporia ohiensis (Berk.) Ryvarden	1932	W. B. Cooke	Dark Hollow, Loveland
	Phlebia radiata Fr.	1932	Cooke, William Bridge	Dark Hollow
	Chlorociboria Seaver ex C.S.Ramamurthi, Korf & L.R.Batra	1936	Cooke, William Bridge	Little Salt Creek

All 134 specimens within 10 miles, at the Global Biodiversity Information Facility.

Regional context, not property-specific evidence. The federal mineral resources record lists 10 workings within 5 miles of Blackfork Junction: 8 past producers, 2 producers. 2 still produce. What was taken out: Clay, Coal, Fire Clay (Refractory), Limestone, General. 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 Jackson 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 1075394. 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.