Name: Mason
County: Sublette
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Feature Type: Locale
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Mason Post Office was established in January, 1903 when the area was part of Uinta County. It was discontinued in June, 1942 and the mail was then handled by Big Piney.
Source: Wyoming Post Offices
A postoffice in Uinta County. Stockraising the principal industry.
Source: Wyoming State Business Directory, 1910-11
A postoffice in Lincoln County, 60 miles north of Kemmerer, the county seat. Stock raising the principal industry. Population 45. Altitude 7,500 feet.
Source: Wyoming State Business Directory, 1922
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