The Greater Yosemite Council (#059) was founded in 1920 as the Modesto Council. In 1921 Modesto changed its name to the Stanislaus County Council, and in 1922 to the Yosemite Area. In 1998, the council changed its name to the Greater Yosemite Council. In 1997, the Forty Niner Council (#052) merged with the GYC.
The Forty Niner Council was founded in 1918 as the Stockton Council. In 1922 Stockton changed its name to San Joaquin, and in 1929 to San Joaquin-Calaveras Council. In 1957, San Joaquin-Calaveras Council changed its name to Forty Niner Council.