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11 December 2013
Stromatolites along the trail to Crypt Lake
On the trail up to Crypt Lake in Waterton Lakes National Park (southernmost Alberta, Canada), there’s a ‘traditional’ hiking trail, and then an intense ledge on a glacial headwall that you must teeter along, including scaling your body up into and through a person-sized tunnel! Right at the transition between the two “phases” of the hike are some boulders of Mesoproterozoic Belt limestones (Helena/Siyeh Formation??) bearing many, many, many stromatolites. …