"Someone stepping off the road for a closer look will see thousands of lanky spiders darting among the webs that extend up to 40 feet into the trees," he said. "There is a surreal quality to the extensive webbing covering these trees."
"[I]t is rare to see them building such large nests in the U.S. Spider experts have indicated that those 'right conditions' appear to include a glut of small insects like midges that emerge at night from lakes. Without lots of food, these communal webs just don't seem to form."
"These types of spiders are unusual in that they are not aggressive to other spiders of the same species on the same web," he said. "They also are not known to bite or be harmful to humans."