Across the Tetons from Jackson near Driggs Idaho, the Grand Targhee ski area (aka Grand Foggy) has 10 miles of cross-country ski trails.
Directions from Jackson Hole airport:
Exit airport. Turn right on Hwy. 89/191.
Go to the town square in Jackson (square will be on your left).
Turn right on Broadway towards Wilson, Hwy. 22.
Turn right on Hwy. 22/Teton Pass-Wilson ("Y" intersection at
Phillips 66 station, follow right lane for exit).
Go through Wilson, Wy. and over Teton Pass (Hwy. 22, steep mountain pass, 10% grades, beautiful views).
Idaho state line is at west base of pass. Wy. Hwy. 22 becomes Idaho Hwy. 33.
Follow Hwy. 33 through Victor, Id. to Driggs, Id. Turn right at the traffic light and Key Bank (Ski Hill Road).
Follow Ski Hill Road for about 6 blocks. You will reach a fork. Bear left and continue on Ski Hill Road.
Remain on Ski Hill Road through Alta, Wy.
Ski Hill Road ends at Grand Targhee Resort!