Whew! Kansas sure is a long and flat state! Although the trek going west is a constant uphill grade-usually subtle, we found it challenging in its own way. By the time we had gotten to Colorado, we had gained a good 4000+ feet of elevation. Our days were usually in the 40-50 mile range, with a 70-mile and a couple of 60-mile ones in there too. We felt a great sense of accomplishment once we reached the Colorado border!