McLean Bogs

McLean Bogs is a National Natural Landmark containing two small kettle bogs located in Dryden, New York. It was donated to Cornell University by Curtis G. Lloyd in the 1930s, and an 81 acre site containing the bogs and surrounding woodlands was declared a National Natural Landmark in May 1983.

The site contains two bogs; one acidic and one alkaline. One bog is approximately 70 m wide with a peat depth of 8 m and contains several species of sphagnum moss. There are over 66 species of lichens in the bog, primarily corticolous and lignicolous types.

Cornell Botanic Gardens manages the site and restricts public access. One of the key research areas in the bog is to better understand how different types of microbial species creates methane gas in peat bogs.