Portland, New York

The same ground, surveyed 84 years apart. Drag the handle to wipe between them. Both sheets are United States Geological Survey originals; neither has been altered.

1902 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.

• 1902 USGS Genoa quadrangle1:62500, 8 printings
• 1942 USGS Ludlowville quadrangle1:24000, 3 printings
• 1943 USGS Ludlowville quadrangle1:31680
• 1950 USGS Elmira quadrangle1:250000, 2 printings
• 1958 USGS Elmira quadrangle1:250000, 2 printings
• 1962 USGS Elmira quadrangle1:250000, 4 printings
• 1965 USGS Elmira quadrangle1:250000
• 1971 USGS Ludlowville quadrangle1:24000, 2 printings
• 1986 USGS Auburn quadrangle1:100000, 2 printings

Regional context, not property-specific evidence. The federal wildfire occurrence database lists 55 fires within 5 miles of Portland between 2002 and 2020, burning about 36 acres in total. 8 started naturally. 9 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:

• Norten
• Asbury
• Myers
• South Lansing
• Terpening Corners
• Duboise Corner

Every fire recorded in Tompkins County

Regional context, not property-specific evidence. The federal mineral resources record lists 11 workings within 5 miles of Portland: 6 past producers, 3 producers, 1 prospect, 1 plant. 4 still produce. What was taken out: Salt, Stone, Crushed/Broken, Sand and Gravel, Construction, Halite. 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 Tompkins 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 972965. 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.