On a sun-spangled day last September, five scientists made an exciting find on the boulder-strewn bed of the upper St. Croix River. They’d been diving for several hours, surveying the depths for ...
It can be a treacherous trek along this part of the St. Croix River. But it's also full of ... are caverns with plenty of bats and plenty of spiders. Knapp's Cave is actually named after Oscar ...