You’ve seen the fences, heard the ringing bells, admired their fleece, perhaps pondered their inner lives and motivations. Or perhaps you are just discouraged by all of the invasive buckthorn. Join David Ritchie, Putney Mountain shepherd and sheep advocate, and Sam Quintal, buckthorn enforcer, for a deep dive into the purpose of our fine fleeced friends feeding at the summit, and our shared zeal for the eradication of the buckthorn that they consume. Limit 15 people.

Rain date: July 18