March 10: 38th Annual National Capital Angling and Conservation Show conducted by the National Capital Chapter of Trout Unlimited. 10 a.m.-5:30 p.m., Hanley Field House, Georgetown Preparatory School, North Bethesda. Speakers and instructors include Lefty Kreh, "Digital Photography" and "Why We Fish: Around the World in 50 Minutes"; Tom Rosenbauer, " How to Read Streams: The Secrets of Finding More Fish," and "Trout Fishing in Small Streams"; Dave Rothrock, "Pennsylvania Fly Hatches and Life Cycle Imitations"; Mark Snyder, "Getting Started — Flyfishing 101"; Colby Trow, "Shenandoah Valley Spring Creeks"; Capt. C. D. Dollar, "Light Tackle Kayak Fishing on Chesapeake Bay and its Tributaries"; and Guy "Spilunker" Turenne, "Trouting in Northern Colorado." Information: ncc-tu.org.