Marine. RV, Deep Cycle, ATV, Lawn and PWC Batteries
Interstate Batteries Mark Twain Lake
ALSO: Many Small Batteries including watch style batteries.

PLUS:  Ammo, Hunting and Shooting  Supplies. Ear Protection, Targets, Blaze Orange and Camoflauge Apparel. Want to test your skill at the nearby Berti shooting range below the dam?

Full Line Mercury Marine oils & Fuel additives.  Many boating and camping accessories.  Skiing accessories  inflatables and life jackets.
From Cannon Dam General Store