Yellowstone National Park is one of the most famous parks in the country, but just because it’s popular doesn’t mean it isn’t loaded with hidden gems and incredible secrets. Learn about some of the lesser-known sites in and around Yellowstone National Park.
Williamsport South / Nittany Mtn. KOA has added a new alert: GPS Warning. Using you GPS directions for access to the park is NOT recommended! Please be sure to check the directions posted on our web site. Most GPS units will Not take you off the correct exit when travelling from I80 heading West or on Route 15 heading North. Be sure that you take exit 210A when traveling on I80, which will take you to RT 15 South. Take the 1st exit (New Columbia) Turn right on New Columbia Road for 4 1/2mi to right on Millers Bottom Road. Park is 1/2 mi on the right. From Route 15 North or South - Do NOT get off any other side roads, other than New Columbia exit & follow same directions as above. Please call for assistance.
Whether you’re exploring the local area or hanging out at the campground, KOA Holidays are an ideal place to relax and play. There’s plenty to do, with amenities and services to make your stay memorable. Plus, you’ll enjoy the outdoor experience with upgraded RV Sites with KOA Patios™ and Deluxe Cabins with full baths for camping in comfort. Bring your family, bring your friends, or bring the whole group – there’s plenty of ways to stay and explore.
From Jct I-80 (Exit 210A) & US 15: Go 1/4 mile south on US 15 to New Columbia exit. Turn right on New Columbia Rd for 4 1/2 miles, then right on Millers Bottom Road for 1/2 mile. Park is on the right. Please use above directions, not GPS units. GPS: N41.04741, W76.95454