Grant County was established on
October 14, 1864, and named for General Ulysses S. Grant, commander of the Union
Army during the Civil War. Earlier in his military career Grant had been
stationed at Fort Vancouver and assigned to protect the increasing number of
emigrants traveling the Oregon Trail. Grant County is located in eastern Oregon
and was created out of Wasco and Umatilla Counties. At that time Grant County
was the largest county in the state. Its size was later reduced by the transfer
of land to Lake County and the creation of Harney and Wheeler Counties. Grant
County shares boundaries with eight counties: Morrow, Umatilla, and Union to the
north; Harney to the south; Malheur and Baker to the east; and Crook and Wheeler
to the west. It has an area of 4,528 square miles.
Eastern Oregon Photo Album Photos from all the Eastern Oregon Counties
Additional Grant County Resources
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