We are situated BETWEEN I-71 exits 131 & 140 approximately 8.5 miles off the interstate.  Your GPS may instruct you to take one of the other many routes but we have found that the routes below are the shorter with less turns. 

Headed North on I-71 (from Columbus): Take exit 131 (we are 8.5 mi off this exit).  Turn RIGHT off exit onto 36/37, get into left turning lane. LEFT onto Wilson Rd. (across from Burger King).  Never turn again (8.50 mi) until you reach PORTER CENTRAL RD. where you will turn RIGHT.  SPECIAL TRAVEL NOTES: (1) This is a busy exit.  If you notice it's busy and it's rush hour, stay on I-71 and just go up to exit 140.  (2) Wilson Rd. becomes 656 when you cross over 61 (3) Your GPS may instruct you to go through Sunbury, which is correct but is a longer route.   
 
Headed South on I-71 (from Cleveland): Take exit 140. LEFT onto St. Rt. 61 for 5 miles. LEFT onto 656 for 2.5 miles. RIGHT onto Porter Central Rd. SPECIAL TRAVEL NOTES: GPS will instruct you to take Chambers Road, which has a COVERED BRIDGE with height limit of 8' 10".  If your rig doesn't fit, go past Chambers and on up to either: 521 (left on 521 then left onto 656) or 656 (left on 656) to Porter Central.