In 1878, Blue Tent was connected to the world's first long distance telephone line, established in 1878 to link the mining communities around the San Juan Ridge.Welselsky, Audrey, Another First for Nevada County, Nevada County Historical Society Bulletin, Vol. 2, No.7, (Dec.1949) p. 3. A US Post Office branch was established in 1878. David Hughes, Superintendent of the Blue Tent Mining Company, was the first postmaster. The post office closed in 1889.Janicot, ibid, p.10.
