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Mokelumne Hill, California

29 topographic sheets cover this place, the earliest surveyed in 1889 and the latest in 1993. It stands in the San Andreas census division. It lies in ZIP code area 95245. It lies near Stockton Hill. The Survey maps it on the Mokelumne Hill quadrangle. 691 people lived here at the 2020 count. It stands 1,473 feet above sea level.

Mokelumne Hill within Calaveras County

Then and now

1889 to 1993

The same ground, surveyed 104 years apart. Drag the handle to wipe between them. Both sheets are United States Geological Survey originals; neither has been altered.

Topographic sheet of Mokelumne Hill, surveyed 1993
Topographic sheet of Mokelumne Hill, surveyed 1889

Population over time

2 figures

Mokelumne Hill grew from 646 to 691 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
2010646
2020691+45 (+7%)

Topographic sheets covering this place

12 surveys from 29 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

230 since 1992

Regional context, not property-specific evidence. The federal wildfire occurrence database lists 230 fires within 5 miles of Mokelumne Hill between 1992 and 2020, burning about 73,243 acres in total. 7 started naturally. 21 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.

Reported cause Fires
Missing data/not specified/undetermined73
Equipment and vehicle use65
Debris and open burning38
Arson/incendiarism21
Power generation/transmission/distribution8
Natural7
Smoking7
Misuse of fire by a minor6
Recreation and ceremony4
Fireworks1

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 2015Missing data/not specified/undetermined70,868 acresAmador-El Dorado UnitBUTTE
9 September 1999Natural6.0 acresCentral California DistrictLIGHTNING 39
8 September 2004Equipment and vehicle use1.0 acresCentral California DistrictBLAKELY
5 September 2012Missing data/not specified/undeterminedunder an acreTuolumne-Calaveras Unit1-5
5 September 2002Recreation and ceremonyunder an acreCentral California DistrictLAFAYETTE
5 September 1999Arson/incendiarism2.0 acresAmador-El Dorado UnitBUTTE
30 September 2013Arson/incendiarism3.0 acresAmador-El Dorado UnitELECTRA
30 September 2004Arson/incendiarismunder an acreCentral California DistrictRIVER

Settlements close enough to share some of these fires:

Every fire recorded in Calaveras County

Mines and quarries near this place

10 of 444 shown

Regional context, not property-specific evidence. The federal mineral resources record lists 444 workings within 5 miles of Mokelumne Hill: 143 occurrences, 116 unknowns, 106 past producers, 42 producers. 43 still produce. What was taken out: Gold, Silver, Sand and Gravel, Construction, Stone, Crushed/Broken. 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
AnitaGold, Copper, IronPast ProducerGold, Iron
DigitalliCobalt, Copper, ManganeseOccurrenceVein
DigitalliManganeseUnknown
Ilex MineGold, Copper, Antimony, LeadPast ProducerChalcopyrite, Galena, Gold, Pyrite, Stibnite
Mokelumne Hill ProspectNickel, CobaltOccurrence
Roberts LeaseMineral PigmentsOccurrenceMineral Pigments
Rough Diamond Placer MineGold, QuartzProducerPlacer
Aime LaidetTalc-SoapstoneOccurrence
Aime LaidetTalc-SoapstoneOccurrence
BostonGold, Lead, Zinc, CopperPast ProducerGalena, Gold, Pyrite

Every working recorded in Calaveras County

Storms near this place

3 since 2015

Regional context, not property-specific evidence. The National Weather Service names Mokelumne Hill in 3 storm reports between 2015 and 2023: 2 debris flow, 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
December 2015Debris FlowMokelumne Hill$10,000There were three incidents reported in the Butte Fire area. Mud and debris covered Hawver Rd. at Jesus Maria Road in Mokelumne Hill along Calaveras River. Road was closed until the debris was cleared. That intersection has a small makeshift bridge over the creek that is made of concrete over about 8 six inch pipes that lie in the river bed. The pipes clogged and the creek overflowed the small bridge. There were also a few small rock slides and mud slides along some of the highways. Highway 26 and Woodhouse Mine Road in West Point had a mud slide, but this did not close the road. The road is open however. There was also a small rock slide on Mountain Ranch Road at Rocky Road.
March 2016Debris FlowMokelumne Hill$5,000Caltrans reported flooding and debris on Highway 26 between Mokelumne Hill and Glencoe, within the Butte Fire burn area.
January 2023FloodMokelumne Hill-Mud and rocks on the road between Highway 49 and Highway 26 near Mokelumne Hill. Reported by the California Highway Patrol.

Every storm recorded in Calaveras 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
Big Bar1.1 miles29
Happy Valley1.2 miles29
Jesus Maria3.3 miles29
Paloma4.1 miles29
Rich Gulch4.5 miles29
Alabama Hill7.1 miles30
Toyon7.3 miles30
San Andreas7.3 miles28

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 Mokelumne HillAn encyclopaedic summary. Its text is share-alike, so it is linked here rather than copied.
Wikidata item Q2403139The 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 228901. 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.