Fort Jackson (Weld County, Colorado)

Weld County · Colorado

Quick BriefFort Jackson was a fur trading post near present-day Ione in Weld County, Colorado that operated from 1837 to 1838. Built in early 1837 at a cost of $12,000 by Peter A. Sarpy and Henry Fraeb and partially financed by the Western Division of the American Fur Company, it was one of four trading posts along the South Platte River, with nearby competitors Fort Vasquez, Fort Lupton, and Fort Saint Vrain.

History & Significance

In summer 1837, Henry Fraeb and Peter Sarpy arrived on the South Platte River a few miles north of present-day Fort Lupton with $10,909.75 worth of trade goods for the Cheyenne and Arapaho who frequented the area. The partners constructed a stockade adobe trade fort named Fort Jackson.

Built near the wintering grounds of the Cheyenne and Arapaho, the fort was positioned to trade buffalo robes the Native Americans produced after summer hunts. During 1837–38, inventory records showed Fort Jackson took in 2,920 bison robes worth $9,715.87.

In October 1838 the post was transferred to Bent, St. Vrain & Company, which operated Fort St. Vrain, and following the inventory transfer, Fort Jackson was demolished. Financial difficulties from the Panic of 1837 likely contributed to the fort's closure. The fort's history remains an important part of Colorado's fur trade narrative.

Key Facts

StateColorado
LocationWeld County
Established1837
Decommissioned1838
War / eraOther / Unspecified
Current statusDemolished / No remains

Sources

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