In the Land of 10,000 Lakes, one beach in northern Minnesota stands out. While most of Lake Superior's iconic shoreline is gray rock, this stretch is a surprising pink.
Many North Shore visitors likely skirt past Iona's Beach as they zip by on Hwy. 61 en route to popular waterfalls and some of the most visited state parks in Minnesota. But those who veer off the beaten path find salmon-colored pebbles and a serene spot to take in the largest of the five Great Lakes.
"It is a relatively unusual composition of volcanic rock," says John Green, a retired Duluth professor who wrote a book on the geology of the North Shore.
It's not just the pink color that makes this beach distinct. Iona's, about 15 miles north of Two Harbors between Gooseberry Falls and Split Rock Lighthouse state parks, is dubbed a "singing beach." In the right conditions, the frigid waves toss the cobbles, creating a subtle tinkling chime rippling down the crescent-shaped cove.
"You have to be there on the right day — it can't be too windy and it can't be still," says AmberBeth VanNingen of the Minnesota Department of Natural Resources (DNR). "There's an allure ... it's just a magical thing about the place."
The DNR has designated 11 acres as a Scientific and Natural Area (SNA) — one of more than 160 in the state. While many SNAs preserve public lands for rare plants, birds and other biological features, Iona's was established to protect its unique geology.
The area's billion-year-old rocks originated from lava flows, solidifying into either basalt — the dark gray rock that dominates the North Shore — or the paler rhyolite, which also makes up the impressive Palisade Head nearby. Water and ice have chipped away at the neighboring 30-foot-high rhyolite cliffs; the powerful waves have rounded the pink fragments and carried them southwest to build up the beach, where a basalt outcrop blocks the rocks from traveling farther.
Green advocated for the protection of Iona's Beach and Sugarloaf Point, about 30 miles away, in the 1980s and 1990s.