Lincoln County situated in southwestern part of Wyoming with Afton being its county seat . As of 2019 its population was estimated at 18 387 inhabitants making it one of Wyoming’s largest counties yet less populated than other areas within state . Major attractions include Star Valley Ranch Golf Course ; Alpine Scenic Loop letting drivers admire breathtaking vistas across Wind River Range mountains while driving through Snake River Canyon towards Jackson Hole valley ; Greys River offering numerous recreational activities such as white water rafting or tubing followed by camping tripsroutes through nearby Bridger National Forest