A popular motorcycle route in the Brown County area:
Starting at a gas station in Columbus for meetup and fuelup (usually the BP) -
46 west to 135 south
Loop
135 south to 58
58 west to 446
446 north to 46
46 east through Nashville back to the 135 south turn
End of loop
Continuing east to Columbus for ~78 miles for the loop and 98 for the full route, BP to BP.
Since the 58 Cafe got shut down by the local church when they tried to get a liquor license, the only food midway on the route is at the Story Inn. They do sandwiches midday on Saturdays. Ice Cream at Bruster's at the 446 and 46 intersection. Lots of stuff at Nashville - food, shopping, and such. There's also a winery along the route for those into that sort of thing.
50 is an alternative to 58 - longer, but faster, smoother, and plenty scenic.
The online motorcycle group I'm a member of pushes to have this as an annual ride. Always a lot of folks behind me.