(Grass River, 28', 22-05-(a) across wet weather area in Grass River Natural Area NE of Alden, Helena Township, Antrim County, MI. East Torch Lake Dr. N. 0.8 miles from jct with Helena Rd. in Alden, continue N. (curves E.) on Alden Hwy 3.1 miles, N. on Grass River Natural Area Rd. 0.8 miles. Park & walk about 200 yds to the bridge. (N44 54.880 W85 13.132) Photo by Mark & Wendy Comstock & Peyton Bland 2-26-11.