Leaving I-25 on US 160 you will first cross north La Veta pass. Fairly long and a little steep but not a bad pass at all. After crossing the San Louis valley and passing the town of South Fork you will climb Wolf Creek pass at over 10,800 ft. But traveling westbound is the easier direction. The west side is long and steep, so be careful about your speed going down. But two lanes going down so you can stay right, stay slow, and not impede traffic. One significant switchback as you near the bottom. Once you reach the bottom easy ride the rest of the way.