 As you reel in the walleyes, keep us locked in. News Talk 1250 KBRF. Depend on it. The Oregon Trail crossed the Continental Divide at South Pass in Wyoming. Just west of that pass, you'll find a handful of buildings that are all the remains of a boomtown of over 2,000 people called South Pass City. The story of its boom and what you can see today is this edition of the American Countryside.