There are a few different options of getting here.

Option 1 : Roadtrip! Drive to Moose Creek Ranch.

Option 2: Fly into Salt Lake City International Airport and rent a car. The drive from SLC is about ~4.5 hours

Option 3: Fly into Jackson Hole Wyoming Airport and rent a car. The drive is ~50 minutes

Option 4: Fly into Idaho Falls Regional Airport and rent a car. The drive is ~1.5 hours