The Stub Stewart Trail Challenge is keeping it interesting for the 2023 event. It’s basically a choose your own distance trail run. The course is a 6.5 mile loop and in previous years you had a choice of the Quarter Marathon (1 loop) or Half Marathon (2 loops). Last year Bivouac Racing added a 3/4 Marathon (3 loops) and a Full Marathon option (4 loops.) No matter which distance you choose, it’s the same price.…