Ping Ngu Curve is one of the most iconic mountain roads in Sakon Nakhon, located along Highway 213 (Sakon Nakhon–Kalasin), close to Phu Phan Ratchaniwet Palace. This section of road is well-known for its continuous winding curves that resemble a snake slithering along the mountain ridge. In the past, locals and engineers compared its shape to a “grilled snake,” which inspired its name, Khong Ping Ngu. The road’s design follows engineering principles to slow down vehicles and ensure safer travel through the mountainous terrain.

Surrounded by lush forests and refreshing mountain air, the area has become more than just a transport route—it is now a must-see landmark. Travelers often stop at the viewpoints and rest areas to capture the beauty of the winding road, especially from higher vantage points where the snake-like curves are clearly visible. Facilities such as rest stops, restaurants, toilets, and public service points are available for visitors.

Nearby, visitors can also explore natural attractions like Hua Sin Chai Waterfall and Kham Hom Waterfall, making Khong Ping Ngu an ideal stopover and a symbolic gateway to the cultural and natural wonders of the Phu Phan mountain range.

• From Sakon Nakhon city, take Highway 213 towards Kalasin. The curve is located along the Phu Phan mountain road, passing near Phu Phan Ratchaniwet Palace. The drive takes about 30–40 minutes by car.

• Ideal for adventurous travelers and road trip lovers.

• Drive carefully as the road is narrow, winding, and steep.

• During the rainy season, the road may become slippery — check your vehicle’s condition before the trip.

Admission fee: Free of charge

Opening time: Open 24 hours