Historically, Impach has been the site of traditional
Native American dance ceremonies by members of the
confederated tribes. Gold was discovered in Ferry County in 1896 and several
gold mines operated in the Impach area as late as the 1950s, including the nearby Gold Twenty Mine which produced
lode gold,
lead, and
silver. During the early 1930s, a predecessor of the
Works Progress Administration established a small
logging operation in Impach, which brought some unemployed families to the area at the height of the
Great Depression. A United States post office operated at Impach, Washington, from 1922 to 1954. The scenic valley is primarily
grazing land today. ==Geography==