If you want to see the Ozarks you probably want to go into Arkansas. You can get maps & brochures here, If you haven't already.
www.arkansas.com If you dont mind coming quite a bit east Highway 19 from Salem to Thayer is a nice curvy ride and from Salem to Eminence is a Scenic Byway. It's a pretty nice and there are quite of bit of things to see, Round Springs, the Current river, the Jack's fork river. If you want to go into the Arcadia Valley, (Missouri's Lead belt) you can go to Johnson Shut-Ins, and Elephant Rocks State Park. If you dont have maps or brochures here is the Missouri site:
http://www.visitmo.com/
I forgot Dillards Mill in Davisville which is located on state road 49 which is off highway 19 but going north from Salem towards Steelville. I imagine these places are a little further than you want to go form Hollister but they are nice.