You searched for: Place Between Sharpsburg & Keedysville along MD Rt 34, Shepherdstown Pike, at Porterstown Bridge over Anteietam Creek. Remove constraint Place: Between Sharpsburg & Keedysville along MD Rt 34, Shepherdstown Pike, at Porterstown Bridge over Anteietam Creek. Place Maryland Remove constraint Place: Maryland Place North America Remove constraint Place: North America Place Washington Remove constraint Place: Washington Topic Carex Remove constraint Topic: Carex Topic Plantae Remove constraint Topic: Plantae Topic Poales Remove constraint Topic: Poales