200 miles or between 3.5 - 4 hours.
This is a scenic easy drive up from Rock Springs. Be sure to look out for elk, deer, and antelope. The Wind River Range can be seen off to the right on a clear day. Note: please watch the speed limits as you pass through small towns along the way.

Directions
The drive is quite simple. Just get on US 191 and continue north.

From I-80, go North on US-191
Becomes US-191/ US-189 at Daniel Junction
Becomes US -191/ US-89/ US-191 at Hoback Junction.
This same road becomes Broadway in the town of Jackson
Note: if you're going to Teton Village, take a left at WY-22 just as you enter Jackson; then, turn right at the Moose-Wilson Rd./ WY 390.

You will pass through Pinedale, Daniel Junction, Bonderant, and Alpine on the way. All have gas stations and other services. Enjoy this scenic drive through western Wyoming.