{{Short description|Natural area in Pennsylvania}} {{Use American English|date=July 2025}} {{Use mdy dates|date=February 2025}} {{Infobox protected area | name = Anders Run Natural Area | alt_name = | iucn_category = | image = | image_alt = | image_caption = | image_size = | map = USA Pennsylvania | map_alt = | map_caption = Location within Pennsylvania | map_width = | location = [[Warren County, Pennsylvania|Warren County]], [[Pennsylvania]] | nearest_town = [[Youngsville, Pennsylvania|Youngsville]] | coordinates = {{coord|41.8248|N|79.2753|W|region:US-PA|format=dms|display=inline,title}} | coords_ref = | area = {{convert|96|acre}} | established = 1987 | visitation_num = | visitation_year = | governing_body = | world_heritage_site = | url = }}
'''Anders Run Natural Area''' is a {{convert|96|acre|ha|adj=on}} [[protected area]] in [[Warren County, Pennsylvania|Warren County]], [[Pennsylvania]], United States. It is part of [[Cornplanter State Forest]].<ref>{{Cite web |title=Cornplanter State Forest Wild and Natural Areas |url=https://www.dcnr.pa.gov/StateForests/FindAForest/Cornplanter/Pages/Wild_NaturalAreas.aspx |access-date=2023-12-16 |website=Pennsylvania Department of Conservation & Natural Resources |language=en-US}}</ref><ref name="Fergus">{{Cite book |last=Fergus |first=Charles |title=Natural Pennsylvania: Exploring the State Forest Natural Areas. |publisher=Stackpole Books |pages=199–202 |year=2002 |location=Mechanicsburg, PA}}</ref>
The Natural Area contains about {{convert|50|acre|ha}} of [[old-growth forest]]. Although parts of the area were logged during the first two decades of the 19th century, [[tree ring]]s of fallen trees have revealed 200-year-old white pines and 400-year-old hemlocks. These trees are also known for their impressive size.<ref>{{Cite web |url=http://www.primalnature.org/ogeast/pa.pdf |title=Old Growth in the East: A Survey. Pennsylvania |author=Mary Byrd Davis |date=23 January 2008 |url-status=dead |archive-url=https://web.archive.org/web/20120217114942/http://www.primalnature.org/ogeast/pa.pdf |archive-date=17 February 2012 }}</ref>
In addition to its forests, the Natural Area also has a stream with native [[trout]] and fine stands of wildflowers. There is a historic residence on the property built in 1841 called the "Little Stone House", though in recent years the structure has fallen into a severe state of disrepair.<ref>{{Cite web| url = http://www.dcnr.state.pa.us/FORESTRY/oldgrowth/andersrun.aspx| archive-url = https://web.archive.org/web/20040302162647/http://www.dcnr.state.pa.us/forestry/oldgrowth/andersrun.aspx| url-status = dead| archive-date = March 2, 2004| title = Anders Run Natural Area| author = Pennsylvania Department of Conservation and Natural Resources}}</ref> The Natural Area has about {{convert|2|mi|km}} of hiking trails.<ref name="Fergus" />
==See also== *[[List of old growth forests]]
==References== {{reflist}}
{{Protected Areas of Pennsylvania}}
[[Category:Old-growth forests]] [[Category:Protected areas of Warren County, Pennsylvania]]