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City of Green River company history timeline

1868

Incorporated in 1868, in what was then Dakota Territory, and named for the swift flowing greenish river that courses through town, the City of Green River has a long and varied history.

1869

John Wesley Powell embarked on the first of two voyages down the Green in May 1869 and floated the river all the way to its confluence with the Colorado and beyond.

1875

In 1875, after some resistance, Green River became the county seat of Sweetwater (formerly Carter) County.

1876

The town was established in 1876 and has the distinction of being one of the few Utah towns not founded by Mormon pioneers.

The photos of the Sweetwater County Courthouse, 1876 and of the Routh Trailer Park are from the Sweetwater County Historical Museum.

1878

The first known settlement at the site of present-day Green River came in 1878 when a mail route was established between Salina and Ouray, Colorado by way of Moab.

Vernal was settled by a party of Mormons led by Jeremiah Hatch in 1878.

1890

The influx of railroad workers gave the town 375 residents by 1890, in addition to a fluctuating population of cowboys, sheepherders, and prospectors from the Book Cliffs and the San Rafael Desert.

1904

As early as 1904 the United States Reclamation Service and the state government began investigating the possibility of building dams on the Green for water reclamation and power production.

1928

In 1928, Wyoming Oil Products built an oil shale refinery in Green River, but failed to develop this abundant resource—probably because, as with many processes tried since, it proved too expensive to get the oil out of the shale.

1931

However, Green River is perhaps best known for its 1931 ordinance prohibiting door-to-door selling unless the salesman was invited to a residence.

1938

In 1938 Mountain Fuel Supply Company located huge trona deposits west of Green River, once again while searching for petrochemicals.

1950

Some know that a part of the base was a repurposed Union Carbide uranium mill that was built during the region’s uranium mining boom of the 1950’s.

1956

In 1956 work began on a dam in Red Canyon, on the Upper Green.

1963

Flaming Gorge Dam was completed in 1963, and today the reservoir has become a popular destination for fishermen and boaters.

1990

The town's river heritage is celebrated in the John Wesley Powell River History Museum, opened in 1990.

1994

Disclaimer: Information on this site was converted from a hard cover book published by University of Utah Press in 1994.

2018

A DIVISION OF THE UTAH DEPARTMENT OF HERITAGE & ARTS ©2018

2020

Sweetwater County Historical Museum. "The Castle Rock Sign," accessed April 15, 2020 at https://www.youtube.com/watch?v=AHcu4w6l9xA. A 93-second You Tube video about the sign announcing the town's name that stood for decades on top of one of the big rocks above Green River.

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Founded
1868
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Headquarters
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City of Green River may also be known as or be related to City of Green River, Green River, Green River Mercantile Co Inc and Green River Parks & Recreation.