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.
(KRON) — California State Parks, which manages more than 340 miles of California’s coastline, is asking the public not to collect any sea glass, agates or other rocks found at state beaches. Although ...