📜 Ancient site with perforated sandstone pillars, considered sacred by Native American groups, listed on the National Register of Historic Places.
🔍 Weathering has given the soft sandstone rock formations a Swiss cheese look.

Why Go

⛰️ Explore unique geological formations and 'Swiss cheese' rocks
🦅 Observe diverse wildlife like golden eagles, mule deer, and sharp-tailed grouse
📜 Discover thousands of ancient petroglyphs and historical inscriptions
🌌 Enjoy stargazing in a remote, peaceful setting

Why Avoid

⚠️ Remote location, 11 miles north of Ekalaka
♿ Not suitable for wheelchairs or strollers due to rocky terrain

Tips

🏕️ 12 campsites available year-round on a first-come, first-served basis
💡 Bring warm clothing and red-light flashlights for night events
🚗 Non-residents pay a daily entrance fee

Cost

💰 Montana residents with annual vehicle registration fee enter free; non-residents pay $8/vehicle or $4/walk-in; camping $4-$34/night.

Hours

🕒 Park and camping open year-round; day use 7 am - 10 pm.