The elusive Lake Superior agate. Rockhounds scour Lake Superior’s shoreline for these rare banded beauties—from the western reaches of the Keweenaw Peninsula to the U.P.’s easternmost Whitefish Point.

With the gales of November rolling in, anyone ready to bundle up in raincoats and waterproof boots may have luck spotting Lake Superior agates and other cool rocks. Late-fall weather already whipped ...

Hunting for Lake Superior agates along the St. Croix River. Eric Benson has been hunting for Lake Superior agates along the St. Croix River for the past seven years. The avid angler searches for the ...

Craig Prudhomme is a former naturalist and has been involved in planning Moose Lake’s Agate Days weekend for 18 years. Moose Lake is home to the largest agate on record. It weighs 108 pounds. “In 1969 ...