Event Description
The Big River Marathon, 1/2 Marathon, 10K and 5K consist of a run along the scenic old logging haul road (dirt/gravel) past groves of second-growth redwoods into the heart of the historic Big River Estuary. The flat and wide course meanders along the northern bank of Big River where runners will race out and back, retracing their steps at the turnaround points located 1.55, 3.1, 6.55 and 13.1 miles out. The road is approximately 15 feet wide and maintained; it is commonly used by runners and bikers.
