Stephenson's is an old-time general store. Among other interesting things, you can buy beautiful marbles by the pound.
They have a deli if you're hungry after a day of caching; if you need to use the facilities, those are available too -- just ask nicely. :)
They used to have a video about the 1937 flood running continually. The last time I was in there, it wasn't going, but they offered to put it on for me when I asked about it.
Store hours are from 7:00am to 8:00pm, Monday through Saturday; closed Sunday.
You do not have to go into the building to do the cache, however. Just look at the front door. What color is it? The number of letters in that word (the color) = X.
Cache container (a magnetic key holder) is at:
N38° 12.0X6
W086° 20.967
I highly recommend taking Second Street around to the second part for a view of Harrison-Crawford State Forest that's not often seen. Besides, it will take you to exactly the right spot. Plenty of parking available at both stages.