"52.2446"^^ . . . "3.96436"^^ . . . "74512.6"^^ . . . . "1.3916e+10"^^ . "377.647"^^ . . . "Bill Williams River"@en . . . . "138.074"^^ . "The Bill Williams River is a 46.3-mile-long (74.5 km) river in west-central Arizona where it, along with its tributary, the Santa Maria River, form the boundary between Mohave County to the north and La Paz County to the south. It is a major drainage westwards into the Colorado River of the Lower Colorado River Valley south of Hoover Dam and Lake Mead, and the drainage basin covers portions of northwest, and west-central Arizona."@en .