From Muscatine, Iowa, southward to Hannibal, Missouri, the route closely follows the flood plain of the Mississippi River. The riverside roads in Iowa and Illinois are rural narrow farm-to-market roads, connecting small farming communities along the river. The Mississippi bridge crossing into Missouri at Hannibal brings you into Mark Twain territory. You'll encounter some steep roller coaster hills before reaching the Missouri River. Riding on 3.9 miles of the Katy Trail between Marthasville and Dutzow, travel will be slower due to its crushed limestone surface, though more pleasant than the highly trafficked SR 47/94. South of Washington, you’ll be entering the Ozark Mountain range. Roads are narrow, winding, and steep, with short sight distances. After Cherokee Pass, the route leaves the mountains and moves onto the alluvial plains of southeastern Missouri to Cape Girardeau. The map also shows a 56-mile spur route into St. Louis which includes 30.5 mi. of the Katy Trail. After crossing the Missouri River you’ll switch to urban cycling as the route heads into the heart of the city. With care, riders who are accustomed to larger cities will have no problem with this spur to downtown St. Louis and the famous Gateway Arch. Click on enlargement for detail.