McLean Bogs
{{Use mdy dates|date=February 2025}}
{{Infobox protected area
| name = McLean Bogs
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| coords = {{coord|42.548750|N|76.266139|W|format=dms|type:landmark_region:US-NY|display=title,inline}}
| area = {{convert|81|acre}}
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| governing_body = Cornell Botanic Gardens
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| embedded = {{designation list |embed=yes |designation1=NNL |designation1_date=1983}}
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McLean Bogs is a National Natural Landmark containing two small kettle bogs located in Dryden, New York.{{cite web |url=http://www.co.tompkins.ny.us/planning/NRI/eco_resources_page.htm |archiveurl=https://web.archive.org/web/20091107050224/http://www.co.tompkins.ny.us/planning/NRI/eco_resources_page.htm |archivedate=November 7, 2009 |title=Ecological Resources |publisher=Tompkins County Planning Department |accessdate=September 12, 2016}}{{Cite web|url=https://www.nps.gov/subjects/nnlandmarks/site.htm?Site=MCBO-NY|title=National Natural Landmarks - National Natural Landmarks (U.S. National Park Service)|website=www.nps.gov|language=en|access-date=2019-04-15|quote="Year designated: 1973"}} It was donated to Cornell University by Curtis G. Lloyd in the 1930s,{{cite journal |last1=Dirig |first1=R. |last2=Root |first2=H.T. |title=Lichens of the McLean bogs basin near Ithaca, New York |journal=Mycotaxon |date=2003 |volume=87 |pages=329–350 |url=http://cat.inist.fr/?aModele=afficheN&cpsidt=15111359}} and an {{convert|81|acre|adj=on}} site containing the bogs and surrounding woodlands was declared a National Natural Landmark in May 1983.{{cite web|url=https://www.nps.gov/subjects/nnlandmarks/site.htm?Site=MCBO-NY|title=McLean Bogs|date=June 28, 2012|website=National Natural Landmarks Program|publisher=National Park Service|access-date=September 12, 2016}}
The site contains two bogs; one acidic and one alkaline. One bog is approximately {{convert|70|m}} wide with a peat depth of {{convert|8|m|spell=in}} and contains several species of sphagnum moss.{{cite web|url=http://micro.cornell.edu/cals/micro/research/nsf-observatories/yavitt-zinder/mclean-bog.cfm |archiveurl=https://web.archive.org/web/20130606172742/http://micro.cornell.edu/cals/micro/research/nsf-observatories/yavitt-zinder/mclean-bog.cfm |archivedate=June 6, 2013 |title=McLean Bog Site |publisher=Cornell University College of Agriculture and Life Sciences |accessdate=September 12, 2016 |url-status=bot: unknown }} 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.{{cite web |url=http://www.cornellplantations.org/our-gardens/natural-areas/other.natural.areas |title=Additional Natural Areas |publisher=Cornell Plantations |accessdate=September 12, 2016}} 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.{{cite web |url=http://micro.cornell.edu/cals/micro/research/nsf-observatories/yavitt-zinder/goals.cfm |archiveurl=https://web.archive.org/web/20130606174625/http://micro.cornell.edu/cals/micro/research/nsf-observatories/yavitt-zinder/goals.cfm |archivedate=June 6, 2013 |title=Goals/Overview |publisher=Cornell University College of Agriculture and Life Sciences |accessdate=September 12, 2016}}