Sustainability Matters will hold a mushroom identification and foraging walk from 1 to 4 p.m. Oct. 20 in George Washington National Forest. The walk will be led by William Needham, president of the Washington, D.C., Mycological Society. The cost is $20 for SM members and $30 for non-members.  Information, registration:, or


  • Occurred Sunday, October 20th, 2019 — all day