Mark from Lee's Summit on 2/2/2021 10:31:02 PM:
Your best bet is to actually work your way north using the nice rail trails on the eastern edge of Kansas. Look up the Southwind Rail Trail starting in Humbolt which leads north to the longer Prairie Spirit Rail Trail to Ottawa. Then from Ottawa, turn east along the Flint Hills Rail Trail to Osawatomie. You can then work your way straight east from Osawatomie, Kansas to Clinton, Missouri.