Reddit reviews Hiking Missouri (America's Best Day Hiking Series)

This book is extremely handy for finding trails throughout the state: Hiking Missouri. As far as local ones, they have all been linked already, but if you're willing to drive a bit, the trails around Taum Sauk and Johnson Shut-ins have some pretty serious elevation changes.

I grew up in the St. Louis area and spent my youth backpacking in the Missouri Ozarks. While I will say i am quite glad I moved away from the flatlands, there is some good hiking to be had in the Ozarks. Hawn State Park has a nice 10 mi loop that was probably my most done weekend backpack. The Ozark Tail (different than the OHT) is becoming more and more completed every year. I especially like the sections around Taum Sauk Mountain. The Berryman Trail is about 25 miles and makes a nice backpack if you don't mind mountain bikers lapping you all the time.

The last two are just day hikes less than a couple miles, but worth mentioning. The Devil's Rock Pile (officially Hughes Mountain) is a super cool area. And The Gulf pic 2 is the single coolest place in missouri...if you can find it...hahaha. Good luck with that.

This book has most of the hikes I recommended in it as well as others. I've heard good things about the Hiking Missouri book also.