Sixth Crossing

Historical marker location:

4189 Wyoming 789, Sweetwater Station, Wyoming

( Marker is on Wyoming 789 (U.S. 287) near Wyoming Highway 135, on the left when traveling west.)

Marker installed: 1998

Wyoming is home to the world's largest mineral hot spring, located in Thermopolis. The hot spring is named "The Big Spring" and produces over 3.6 million gallons of mineral water per day. The water is known for its healing properties and is used for therapeutic purposes.