(Natural Habitat) in Grass River Natural Area NE of Alden, Helena Township, Antrim County, MI. Helena Rd. E. 2.0 miles from jct with E. Torch Lake Dr. in Alden, N. on Pherson Rd. 1.5 miles, E. on Alden Hwy 0.5 miles, N on Grass River Natural Area Rd.0.7 miles. Park & walk NE about 200 yds to the mural. (N44 54.880 W85 13.132) Photo by Mark & Wendy Comstock 2-26-11.