The following are directions to GSCM at 3801 Ponderosa, Columbia, MO 65201.

From I-70 take Highway 63 South towards Jefferson City:
1. Take the AC Exit (formerly old business 63 or aka Old 63)
2. At the top of the Ramp Turn RIGHT, which is Grindstone Parkway - go approx .3 miles
3. Turn LEFT onto Ponderosa - go approx .5 miles
4. Turn RIGHT into the Boone County Historical Society Visitor Center

Traveling north on Highway 63 from Jefferson City:
1. Take the AC Exit (formerly old business 63 or aka Old 63)
2. At the top of the Ramp Turn LEFT, which is Grindstone Parkway - go approx .4 miles
3. Turn LEFT onto Ponderosa - go approx .5 miles
4. Turn RIGHT into the Boone County Historical Society Visitor Center
I also noticed that before you get to the AC exit (either direction) there are big signs that say "Boone County Historical Society Visitor Center next exit". The next exit is AC.