Online registration closes Saturday, March 2 @1pm. We do have day of race registration! Day of race registration is $10 extra. The Stewart Mountain Trail Races start at North Lake Whatcom Trailhead (Hertz Trail). The 5k runs up Stewart Mountain on county trails and loops down to the finish on some old logging roads with stunning views of Lake Whatcom and Bellingham. Runners will enjoy forest and lake views throughout the race. The 15k will run along the scenic Hertz trail with expansive views of Lake Whatcom for 3.1 miles out and back, finishing by climbing Stewart Mountain trails for 5k.