Snyder Middleswarth Natural Area is a 500 acre (202 ha) National Natural Landmark within Bald Eagle State Forest in Spring Township, Snyder County, Pennsylvania in the United States. It is named for two Pennsylvania politicians from Snyder County: Simon Snyder and Ner Alexander Middleswarth. It was formerly a Pennsylvania state park and was the only one in Snyder County, but lost its state park status in the mid 1990s.