Sharpen your natural detective skills by trekking the trails of Sweet Arrow Lake County Park at 2 p.m. Sunday, Feb. 19 to search for the true personalities of a variety of deciduous trees.

Meet at the large pavilion near the clubhouse and be sure to dress for the weather.Retired forester and arborist Frank Snyder will lead a field walk to learn how to identify deciduous trees using twigs, buds, bud scars, bark, tree form and other features.Participants will receive a complimentary copy of the "Common Trees of Pennsylvania" field guide.This program is free and open to the public.