BlockBefore

San Ysidro, California

35 topographic sheets cover this place, the earliest surveyed in 1903 and the latest in 1997. It stands in the Palomar-Julian census division. It lies in ZIP code area 92086. The Survey maps it on the Hot Springs Mountain quadrangle.

San Ysidro within San Diego County

Then and now

1903 to 1997

The same ground, surveyed 94 years apart. Drag the handle to wipe between them. Both sheets are United States Geological Survey originals; neither has been altered.

Topographic sheet of San Ysidro, surveyed 1997
Topographic sheet of San Ysidro, surveyed 1903

Compare 1903 against another survey:

On record in San Ysidro

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 1 record

Topographic sheets covering this place

17 surveys from 35 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.

Fires near this place

74 since 1992

Regional context, not property-specific evidence. The federal wildfire occurrence database lists 74 fires within 5 miles of San Ysidro between 1992 and 2020, burning about 15,384 acres in total. 21 started naturally. 1 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
Missing data/not specified/undetermined24
Natural21
Equipment and vehicle use19
Debris and open burning3
Recreation and ceremony3
Smoking1
Fireworks1
Misuse of fire by a minor1
Arson/incendiarism1

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

DateCause SizeReported by Name on the report
9 September 2006Equipment and vehicle use2.0 acresSan Diego UnitYAQUI
5 September 1994Naturalunder an acreSan Diego UnitRANCHITA
30 September 2010Missing data/not specified/undetermined4.0 acresSan Diego UnitHOT SPRINGS COMPLEX
29 September 1996Missing data/not specified/undeterminedunder an acreSan Diego UnitHOLE
25 September 2011Missing data/not specified/undetermined1.0 acresSan Diego UnitMONTEZUMA VALLEY RD MP- 5
14 September 2020Missing data/not specified/undeterminedunder an acreSan Diego UnitWARNER SPRINGS SCHOOL HEN
14 September 2002Missing data/not specified/undetermined10 acresSan Diego UnitCOYOTE
10 September 2000Natural1.0 acresCalifornia Desert DistrictHOTSPRINGS

Settlements close enough to share some of these fires:

Every fire recorded in San Diego County

Mines and quarries near this place

10 of 25 shown

Regional context, not property-specific evidence. The federal mineral resources record lists 25 workings within 5 miles of San Ysidro: 10 occurrences, 6 prospects, 4 producers, 4 past producers. 4 still produce. What was taken out: Gold, Tungsten, Stone, Marble, Dimension. Distance is straight-line from the map coordinates, so a quarry counted here may appear on a neighbouring settlement's page as well.

Where SiteCommodity StatusRecorded
UnnamedStone, Crushed/BrokenOccurrence
Unnamed ProspectPhosphorus-PhosphatesOccurrence
Warners Hot SpringsGeothermalProducer
Verruga DepositStone, Marble, DimensionProducerMetamorphic
Verruga DepositStone, Marble, DimensionPast Producer
Sentenac DepositStone, GoldOccurrence
Los Coyotes ProspectTungstenOccurrenceScheelite
Los Coyotes ProspectTungstenProspect
Payoff MineTungstenPast ProducerScheelite
Payoff MineTungstenPast Producer

Every working recorded in San Diego County

Storms near this place

12 since 2000

Regional context, not property-specific evidence. The National Weather Service names San Ysidro in 12 storm reports between 2000 and 2024: 6 flood, 3 flash flood, 1 wildfire, 1 debris flow. The reports record 3 deaths and 13 injuries. Each account below is quoted exactly as the forecast office filed it, from the NOAA Storm Events Database, and each date opens the federal record of that event.

WhenEvent Place namedHarm What the report says
January 2021Flash FloodSan Ysidro1 killed, 8 hurtSan Diego fire department and rescue and U.S. Border Patrol report 8 people trapped in a flooding storm drain between Otay Mesa and San Ysidro. 7 people were helped to safety with one fatality.
February 2024FloodSan Ysidro1 killedA 61 year old man drowned in the Tijuana River Channel on February 6 while attempting to cross the international border, following heavy rain in San Diego. San Diego Fire-Rescue swift water crews pulled the body from the river and despite attempted lifesaving measures, the man was pronounced dead at the scene.
February 2003FloodSan Ysidro1 killedno account filed
December 2008Flash FloodSan Ysidro3 hurt, $250,000Significant flooding in the Tijuana River Valley resulted in the deaths of a Tijuana man and numerous ranch and farm animals. At least 21 people had to be rescued, including 6 by helicopter. Three men were taken to a hospital and treated for hypothermia. An estimated 70 horses were also rescued. Three horses drowned before they could be rescued and another horse was later euthanized due to a leg injury. Fifteen goats and an unknown number of dogs also died in the flood. One farmer lost $600,000 dollars worth of his crop while another lost $10,000 dollars worth of watermelons. The one human death occurred outside the forecast area in Tijuana, Mexico. The flash flood occurred when both the Tijuana River and a nearby flood control channel became dammed with with sediment, trash, and other debris.
March 2000FloodSan Ysidro2 hurt, $40,000no account filed
February 2017FloodSan Ysidro$50,000Flooding in the Tijuana River Valley impacted agricultural areas and led to roadway closures.
January 2023Heavy RainSan Ysidro-Heavy rain fell across much of San Diego County on January 1st. Per reports from NWS Employees and other trained spotters rainfall totals of 1-3 inches fell across much of the county through the evening hours on the 1st.
November 2019FloodSan Ysidro-Swift water rescue occurred on Otay Mesa Road for 2 people trapped in a car due to flooding around 0815 PST on November 20th.
November 2019FloodSan Ysidro-A swift water rescue occurred on Dairy Mart Road for 2 people in a truck at a low water crossing near the Tijuana River.
November 2019Debris FlowSan Ysidro-A large mudslide occurred on I-805 at the intersection of Hwy 905 in Otay Mesa.
November 2013Flash FloodSan Ysidro-The Tijuana River gage reported a rapid rise in flow between 1830 and 2100 PST...increasing by 2.6 feet during that time.
July 2002WildfireSan Ysidro-no account filed

Every storm recorded in San Diego 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.

Map PlaceDistance Sheets
Eagles Nest2.7 miles35
Los Tules3.5 miles35
Warner Springs4.0 miles34
Ranchita4.1 miles31
San Felipe4.2 miles31
San Ignacio4.3 miles35
Morettis Junction8.6 miles33
Borrego Springs10.1 miles35

Provenance

This settlement is recorded in the Geographic Names Information System as feature 1661395. 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.

Storms. NOAA National Centers for Environmental Information, Storm Events Database https://www.ncei.noaa.gov/stormevents/ A work of the United States government, no copyright under 17 U.S.C. 105. Narratives are quoted verbatim from the National Weather Service report and are not edited or summarised.