Asphalt Mines, California

The same ground, surveyed 98 years apart. Drag the handle to wipe between them. Both sheets are United States Geological Survey originals; neither has been altered.

1897 1995

Buildings and businesses the archive holds for this place. Each opens its own page, with the source record it came from.

On the National Register within a mile 1 record

The National Register names another town for these. They stand within one mile of this settlement's coordinate.

• Corral de Piedralisted 1978 · 0.9 miles away

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.

• 1897 USGS Arroyo Grande quadrangle1:62500, 5 printings
• 1900 USGS San Luis quadrangle1:125000, 4 printings
• 1942 USGS Arroyo Grande quadrangle1:62500, 3 printings
• 1947 USGS San Luis Obispo quadrangle1:250000
• 1948 USGS San Luis Obispo quadrangle1:250000
• 1952 USGS Arroyo Grande quadrangle1:62500, 3 printings
• 1956 USGS San Luis Obispo quadrangle1:250000, 5 printings
• 1957 USGS San Luis Obispo quadrangle1:250000
• 1958 USGS San Luis Obispo quadrangle1:250000
• 1965 USGS Arroyo Grande NE quadrangle1:24000, 6 printings
• 1981 USGS San Luis Obispo quadrangle1:100000, 3 printings
• 1995 USGS Arroyo Grande NE quadrangle1:24000

Regional context, not property-specific evidence. The federal wildfire occurrence database lists 351 fires within 5 miles of Asphalt Mines (historical) between 1992 and 2020, burning about 1,765 acres in total. 8 started naturally. 11 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:

• Reeds (historical)
• Tiber
• Maxwellton (historical)
• Pismo Beach
• Shell Beach
• Arroyo Grande

Every fire recorded in San Luis Obispo County

Regional context, not property-specific evidence. The federal mineral resources record lists 25 workings within 5 miles of Asphalt Mines (historical): 11 occurrences, 6 producers, 6 past producers, 2 prospects. 6 still produce. What was taken out: Sand and Gravel, Construction, Diatomite, Manganese, Pumice. 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 San Luis Obispo 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 1670659. 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.