What has sharp pointed needles and grows out at Grass River? Join us at Grass River Natural Area on Saturday, December 15 at 11 am as we discover the differences between pines, spruces, and firs at Grass River. We will learn ID techniques and then take a short naturalist-led hike to test your skills. This 1.5-hour program is $5 per person. For more information visit grassriver.org. The entrance to Grass River Natural Area is at 6500 Alden Highway, Bellaire.