The name first appears in the record in 1826 when Peter Skene Ogden, a fur trapper with the Hudson's Bay Company, referred to it as "River au Malheur (from rivière au Malheur, literally: River of the Misfortune)" and thereafter as "Unfortunate River."
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A portion of the brigade, under the leadership of Johnson Gardner, confronted Peter Skene Ogden, the leader of Hudson's Bay Company's Snake Country Expedition near present-day Mountain Green, Utah.
The first recorded encounter between Wintu and Euro-Americans dates from the 1826 expedition of Jedediah Smith, followed by an 1827 expedition led by Peter Skene Ogden.