Duluth Deep Dive #4: A Rock on Fourth Street

A rock on a section of undeveloped land on Fourth Street between Seventh and Eighth avenues east. (Photo by Matthew James)
There are a lot of rocks, large and small, strewn about Duluth. This post uses the assistance of ChatGPT, backed-up by a moderate amount of fact checking, to figure out what can and cannot be known about this particular one.