90 min to get to Coshocton from Columbus? Not that it takes that long to get there anyways, but the twisty bits start before Coshocton. Take 70 to 79 North, 79 to 541 SE, 541 once in Coshocton to 16 South, then 16 to 83 South, then 83 to 93 SW....then 93 will dump you at New Concord just East of Zanesville. You can either hoof it back to Cbus or make a nice big loop back home. Look at a good Atlas, follow the routes I gave you and see what you think. The route I gave you aint too shabby.