Minneapolisで最も古い樹木はどれですか。
Minneapolis's likely oldest tree is the Rockwood Oak, a bur oak in Theodore Wirth Regional Park estimated at 300 to 315 years old by the Minneapolis Parks Foundation and Mpls.St.Paul Magazine. It grows in thick woods on the western shore of Wirth Lake and survived a direct hit from the 2011 north Minneapolis tornado.
Nobody has cored the Rockwood Oak or published a girth figure for it, so the age is an estimate rather than a measurement, and the two sources that offer one differ slightly: the Minneapolis Parks Foundation says 315 years, Mpls.St.Paul Magazine says approximately 300. Both call it a candidate for the city's oldest living thing rather than stating it outright, because nobody has surveyed every old tree in Minneapolis to settle the claim. What makes the age plausible is the species: bur oak is the tree of the prairie edge, with bark thick enough to survive the fires that once ran through Minnesota's oak savanna every few years, which is why the region's oldest trees tend to be bur oaks rather than something thinner-barked. This one had already been growing for a century before Fort Snelling was built downstream, and it carries burls, the lumpy growths that mark a long history on a trunk. It sits off the trail on the western shore of Wirth Lake and takes some looking to find.