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Mammoth, Arizona

25 topographic sheets cover this place, the earliest surveyed in 1911 and the latest in 1986. It stands in the San Manuel census division. It lies in ZIP code area 85618. It stands on Tucson Wash. The Survey maps it on the Mammoth quadrangle. 1,076 people lived here at the 2020 count. It stands 2,359 feet above sea level.

Mammoth within Pinal County

Population over time

2 figures

Mammoth fell from 1,426 to 1,076 between 2010 and 2020. These are the recorded population figures Wikidata holds for this place, reached through the Geographic Names Information System number this page is keyed on rather than by name, so they belong to this place and not to another of the same name. Most are census counts, but not all are: an early figure may be a founding or settlement estimate, and an estimate published within five years of a census is left out. The change column is computed, and is left blank where more than 20 years separate a figure from the one before it, because a gap that long is not a change between two counts.

YearPeople Change
20101,426
20201,076-350 (-25%)

Topographic sheets covering this place

12 surveys from 25 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

29 since 1992

Regional context, not property-specific evidence. The federal wildfire occurrence database lists 29 fires within 5 miles of Mammoth between 1992 and 2014, burning about 3,852 acres in total. 4 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/undetermined17
Natural4
Debris and open burning3
Railroad operations and maintenance2
Smoking1
Arson/incendiarism1
Equipment and vehicle use1

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
14 September 2004Missing data/not specified/undeterminedunder an acreArizona Department of Forestry and Fire Management - State OfficeLINDA VISTA
7 August 1995Naturalunder an acreArizona Department of Forestry and Fire Management - State Officenot named
30 August 2007Missing data/not specified/undeterminedunder an acreArizona Department of Forestry and Fire Management - State OfficeSMELTER
1 August 1993Missing data/not specified/undetermined2.2 acresArizona Department of Forestry and Fire Management - State Officenot named
4 July 1995Missing data/not specified/undetermined75 acresArizona Department of Forestry and Fire Management - State Officenot named
28 July 1995Missing data/not specified/undetermined3.0 acresArizona Department of Forestry and Fire Management - State Officenot named
24 July 1999Naturalunder an acreArizona Department of Forestry and Fire Management - State OfficeTAILINGS
12 July 2006Smokingunder an acreArizona Department of Forestry and Fire Management - State Office2

Settlements close enough to share some of these fires:

Every fire recorded in Pinal County

Mines and quarries near this place

10 of 26 shown

Regional context, not property-specific evidence. The federal mineral resources record lists 26 workings within 5 miles of Mammoth: 14 past producers, 5 producers, 3 prospects, 3 unknowns. 5 still produce. What was taken out: Copper, Silica, Gold, Gold, Silver. 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
Black Beauty PropertyManganesePast Producer
Bose MineLead, ManganeseOccurrence
Ford PropertyGold, Lead, Silver, Vanadium, Copper, MolybdenumPast Producer
MammothGold, Lead, Copper, Molybdenum, Vanadium, Zinc, Fluorine-Fluorite, Limestone, GeneralPast Producer
Mammoth - St. Anthony MineGold, Lead, Zinc, Vanadium, Silica, Silver, Molybdenum, Copper, Fluorine-Fluorite, Barium-Barite, TungstenPast Producer1879, 1881
Mammoth Gold Mining Co PropertyGold, Copper, Lead, MolybdenumPast Producer
Mammoth Tailings DumpSilica, Silver, Copper, GoldUnknown
Mammoth-TigerGold, Lead, Barium-Barite, Copper, Fluorine-Fluorite, Molybdenum, Silver, Tungsten, Vanadium, ZincUnknown1879, 1881
MohawkGold, Lead, Manganese, Silver, Molybdenum, Vanadium, ZincPast Producer
Mohawk Extension PropertyLead, Gold, ManganesePast Producer

Every working recorded in Pinal County

Storms near this place

13 since 2001

Regional context, not property-specific evidence. The National Weather Service names Mammoth in 13 storm reports between 2001 and 2023: 5 thunderstorm wind, 4 flash flood, 2 hail, 1 flood. No death or injury is recorded in these reports. 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
July 2018Heavy RainMammoth$50,000One to three inches of rain destabilized the soil that compromised the town of Mammoth's water system by creating fractures in the water system lines. This caused the system to be shut down and the town to declare a state of emergency.
September 2014FloodNorth Mammoth$30,000Heavy rain which occurred near the headwaters of the San Pedro River in Mexico and also over Cochise County due to Tropical Depression Odile caused significant rises on the San Pedro River. Water eventually made its way north through Mammoth, where the river overflowed it banks. Three homes and rural roads were flooded. Other residences were evacuated as a precaution. Residents were allowed back in their homes in the morning as the water receded. No injuries occurred.
July 2013Thunderstorm WindMammoth$25,000Thunderstorm winds downed several power poles in Mammoth. Evaporative coolers were blown off roofs and trees were downed, some of which caused minor damage to nearby homes. Some residents of Mammoth were without power for just over 24 hours. Thunderstorms winds also blew down a fence in Oracle.
July 2001Thunderstorm WindMammoth$20,000no account filed
July 2023Thunderstorm WindNorth Mammoth$5,000Thunderstorm winds downed a large dead tree that fell onto a pickup while driving along Owens Pl.
July 2009Thunderstorm WindMammoth$1,000Law enforcement reported a ramada was blown down at the Mammoth swimming pool.
August 2019Flash FloodNorth Mammoth-Between 1 and 2 inches of rain in around one hour between Mammoth and San Manuel caused flash flooding at Copper Creek Road along the San Pedro River.
July 2014Flash FloodNorth Mammoth-Route 77 about 3.7 miles north of Mammoth, AZ was closed at mile marker 117 due to flash flooding. Rainfall in excess of 0.75 inches fell in a short period of time with a slow-moving thunderstorm, causing the road to flood. The same storm produced a storm total of 3.5 inches in Dudleyville, AZ.
July 2013HailMammoth-One inch diameter hail was reported in Mammoth.
July 2012Flash FloodMammoth-Heavy rain caused several roads to be closed in the Mammoth area including Copper Creek Road and River Road.
August 2004Thunderstorm WindMammoth-Strong winds took down 10 to 15 power poles along Arizona route 77, and power lines were downed in Mammoth.
July 2001HailMammoth-no account filed
August 2001Flash FloodMammoth-no account filed

Every storm recorded in Pinal 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
North Mammoth0.8 miles25
Tiger2.4 miles25
Fordville3.1 miles25
Sombrero Butte8.4 miles21
San Manuel8.5 miles28
Blake Place8.6 miles24
Copper Creek8.9 miles19
Oracle10.3 miles20

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 MammothAn encyclopaedic summary. Its text is share-alike, so it is linked here rather than copied.
Wikidata item Q385920The 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 7637. 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.