Once the most important town in the county it was called Republic Camp and hidden in the folds of the Okanogan Highlands and the Kettle River Range. After a gold strike on Eureka Creek, Republic was established by a group of miners as The Mining District of Eureka, and platted by Philip Creasor. At about the same time, another strike was made on nearby Granite Creek.
Postal authorities refused the name of Eureka for the post office because a town existed with that name in Clark County. The present name, proposed by citizens to honor the Great Republic mining claim, was accepted.
The town became the seat of Ferry County. Despite a few modern structures, the town retains a flavor of the Old West along its main street, with an ancient “opry house,” now a motion picture theater, balconied and false-fronted buildings, and old-time bars untouched by the fire of 1938, which razed a section of the street.
Discovery of gold on Granite Creek by John Welty on February 20, 1896, opened the northern section of the Colville Native American Reservation and brought an influx of prospectors. In its issue of May 14, 1896, the Republic Pioneer proclaimed that here was a little city that was moving right along. “Large quantities of whiskey, flour, and other necessities arrived during the week.” Gold seekers continued to flock to the frontier town throughout the summer of 1898. By 1900 Republic ranked sixth in population among eastern Washington cities. This was an exciting period of its life, when 28 saloons and two dance halls assisted miners, prospectors, and miscellaneous fortune hunters to while away their evenings. The “Hot Air Line,” a railway so called because its completion was deemed improbable, was finished between Republic and Grand Forks, B. C., in April, 1902, but proved unprofitable and was replaced by the Great Northern the same year.