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Mill City, Mono County, California

Coordinates: 37°37′22″N 118°59′32″W / 37.62278°N 118.99222°W / 37.62278; -118.99222
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Mill City
Former settlement
Ruins of stamp mill flywheel
Ruins of stamp mill flywheel
Mill City is located in California
Mill City
Mill City
Location in California
Coordinates: 37°37′22″N 118°59′32″W / 37.62278°N 118.99222°W / 37.62278; -118.99222
CountryUnited States
StateCalifornia
CountyMono County
Elevation
[1]
8,320 ft (2,536 m)

Mill City is a former settlement in Mono County, California.[1] It was located 8.5 miles (14 km) west-northwest of Mount Morrison and 0.5 miles (0.8 km) southwest of Old Mammoth,[2] at an elevation of 8320 feet (2536 m).[1]

Dominating the scene in Mill City are remains of Mammoth Mining Company’s 40-stamp mill, including a large flywheel and stone foundations. Other remains include sunken foundations of additional houses, found among pine trees on a hill above the mill site.[3]

Mill City is currently on land owned by the United States Forest Service, who leased the land for recreational cabins. In 2012, tests found that water in Mammoth Creek was contaminated by mercury from the stamp mill.[4] Mercury was used to separate gold from ore at the site, and it was not removed from the mine tailings.[5] The Forest Service conducted a superfund investigation in 2016, and found that the risk to cabin owners from mercury, antimony, arsenic, and lead was high. Subsequent investigations found that the contamination had spread over 5 acres (2.0 ha).[5] The cabin owners had to vacate their premises as of 2019.[6] As of 2019, there were no Forest Service funds to remediate the site, while the previous owners (Union Bank) refused to pay for remediation.[6] The Forest Service would only allow cabin owners back after remediation (or limit their exposure to 5 days/year).[4] In 2022, the Forest Service revoked the permits for the cabins.[7]

References

[edit]
  1. ^ a b c U.S. Geological Survey Geographic Names Information System: Mill City, Mono County, California
  2. ^ Durham, David L. (1998). California's Geographic Names: A Gazetteer of Historic and Modern Names of the State. Clovis, Calif.: Word Dancer Press. p. 1184. ISBN 1-884995-14-4.
  3. ^ Nadeau, Remi (1992). Ghost Towns and Mining Camps of California. Crest Publications. pp. 242–243. ISBN 978-0962710421.
  4. ^ a b "Frequently Asked Questions for Mammoth Stamp Mill CERCLA Site". USDA Forest Service. 2017-04-05.
  5. ^ a b Graham-Wakoski, Noelle (2019-11-16). "Mammoth Mill Site Cabin Area CERCLA Investigation Status Update" (PDF).
  6. ^ a b Hitein, Zachary (2019-11-22). "Poison Pill For Mill City Tract Owners". The Sheet.
  7. ^ "Notices" (PDF). Federal Register. June 8, 2022. p. 34838.


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