Formed in the early 1890s, Mason Valley Telephone and Telegraph Co. endured a succession of owners. The telephone was introduced at Yerington in 1898. Dr. Granville Leavitt, Ed Lamb, and JI Wilson were the principals in constructing the first line into town from Wabuska. Twelve miles to the north, the property was later operated as the Yerington Electric Company and then as the Walker River Telephone Co.