Two Harbors, California

17 topographic sheets cover this place, the earliest surveyed in 1943 and the latest in 1998. It stands in the Palos Verdes census division. It lies in ZIP code area 90704. It lies near Cherry Valley. The Survey maps it on the Santa Catalina North quadrangle.

Two Harbors within Los Angeles County

Then and now

1943 to 1998

The same ground, surveyed 55 years apart. Drag the handle to wipe between them. Both sheets are United States Geological Survey originals; neither has been altered.

Topographic sheet of Two Harbors, surveyed 1998

Topographic sheet of Two Harbors, surveyed 1943

Compare 1943 against another survey:

Topographic sheets covering this place

8 surveys from 17 printed sheets

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.

1943 USGS Santa Catalina North quadrangle1:24000, 4 printings
1949 USGS Long Beach quadrangle1:250000, 2 printings
1950 USGS Santa Catalina North quadrangle1:24000
1957 USGS Long Beach quadrangle1:250000, 4 printings
1958 USGS Long Beach quadrangle1:250000
1960 USGS Long Beach quadrangle1:250000, 2 printings
1981 USGS Santa Catalina Island quadrangle1:100000, 2 printings
1998 USGS Santa Catalina North quadrangle1:24000

Fires near this place

3 since 2007

Regional context, not property-specific evidence. The federal wildfire occurrence database lists 3 fires within 5 miles of Two Harbors between 2007 and 2020, burning about 2 acres in total. None started naturally. None was 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.

Reported cause	Fires
Equipment and vehicle use	2
Power generation/transmission/distribution	1

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

Date	Cause	Size	Reported by	Name on the report
2 May 2007	Equipment and vehicle use	under an acre	California Department of Forestry & Fire Protection	not named
6 March 2012	Equipment and vehicle use	1.0 acres	Los Angeles County Fire Department	not named
20 December 2020	Power generation/transmission/distribution	1.1 acres	Los Angeles County Fire Department	not named

Every fire recorded in Los Angeles County

Mines and quarries near this place

9 within 5 miles

Regional context, not property-specific evidence. The federal mineral resources record lists 9 workings within 5 miles of Two Harbors: 8 past producers, 1 prospect. None of them still produces. What was taken out: Stone, Crushed/Broken, Stone, Dimension, Silver, Copper, Lead, Zinc. Distance is straight-line from the map coordinates, so a quarry counted here may appear on a neighbouring settlement's page as well.

Site	Commodity	Status	Recorded
Arrow Point Deposit	Talc-Soapstone	Past Producer
Banning Quarry	Diatomite	Past Producer
Santa Catalina	Silver, Copper, Lead, Zinc	Past Producer	Vein
Santa Catalina Island Deposits	Copper, Lead, Silver	Prospect
Banning Quarry	Stone, Dimension	Past Producer
Lang Quarry	Stone, Dimension	Past Producer
Empire Landing Quarry	Stone, Crushed/Broken	Past Producer
Empire Quarry	Stone, Crushed/Broken	Past Producer
Los Angeles City Quarry	Stone, Crushed/Broken	Past Producer

Every working recorded in Los Angeles County

Nearest settlements

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

Place	Distance	Sheets
Avalon	11.3 miles	16
Portuguese Bend	21.8 miles	37
Rancho Palos Verdes	21.8 miles	39
San Pedro Hill	22.8 miles	37
San Pedro	23.2 miles	36
Rolling Hills	23.2 miles	41
Palos Verdes Peninsula	23.4 miles	43
Miraleste	23.4 miles	41

Elsewhere

Matched on this settlement's Geographic Names Information System number rather than its name, so it cannot be a different place of the same name in another state.

Wikipedia article on Two Harbors	An encyclopaedic summary. Its text is share-alike, so it is linked here rather than copied.
Wikidata item Q3288805	The structured record the population and elevation above come from. Public domain (CC0).

Provenance

This settlement is recorded in the Geographic Names Information System as feature 253316. 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.