How many kilometers is it from Guiyang to Pingtang? How long does it take to drive on the expressway?

I went to Libo by car on National Day this year, and there were many people, especially in Chongqing. Then I went to Pingtang. I find the scenery in Pingtang is not bad. Money is also spent less. Pingtang is dotted with scenery, each with its own scenery and unique style. For example, Zhang Bu's geological wonders, Liu Dong's natural scenery, the only Maonan nationality township. We went to the palm cloth 66 kilometers away from Pingtang. It's 5 pm after the tour, and we want to go back to Guiyang. We use GPS positioning, and the computer shows that the best route is to return to the original road (Zhang Bu-Pingtang-Dushan-Duyun-Guiyang). The toll of this road is only 80 yuan, more than 300 kilometers. We were worried that it would be too late to go back, so we asked the local police. Tell them to turn right from the scenic spot, turn left after crossing the bridge, and publicize the billboard shunt in front of them. Go straight is the way back to Pingtang, and the one-lane asphalt road leads to Xiguan. You can go back to Guiyang along this road through Huishui. (Zhang Bu-Baibang Township-Huishui-Guiyang) After Huishui comes out, the toll is collected. The distance is 1 yuan, about150km. The scenery along the way is absolutely beautiful. From the height, you can see that the terraces are down layer by layer, and the golden wheat waves and the dark hills are hidden from each other. Cattle returning home at dusk and horses roaming in the mountains add fresh life to this static picture. Especially the alpine meadows and scattered pine trees on the top of the mountain, you can vaguely find the shadow of the fruit ditch. But unfortunately, there is no water source. But unfortunately, in order to catch up with the time, I didn't have time to take some photos (I regret it now). The red line in the picture is the newly-built expressway.