Erratic or glacier erratic is a piece of rock that has been carried by glacial ice, often hundreds of kilometres. Characteristic of their massive size and improbable looking placement. Erratics are frequently seen around Whistler and Garibaldi Provincial Park. Either as bizarre curiosities or a place to relax in the sun. On a sunny day, a large sun-facing erratic will often be warm and sometimes even hot, providing a comfortable and surreal place to rest.
During the last ice age, glaciers covered British Columbia, and where Whistler is today, the glaciers were two kilometres thick. Glaciers from the last ice age can often be measured by the grinding marks made on the mountains they covered. In the mountains around Whistler you can see just a few that poked through the glaciers, leaving their peaks jagged. Other, shorter mountains around Whistler can be easily recognized as completely covered in ice. Shown by their rounded, glacier ground peaks. The most impressive erratics lay in an area with dissimilar rock types in the surrounding mountains. For example, rock and mountains around the erratic should be of different colour, texture and composition. An erratic should look very out of place and distinct from its surroundings. Erratics are frequently the result of glaciers carrying or grinding the erratic as it slowly moves down a glacier valley. Rock slides from mountains can deposit house sized boulders onto a glacier which then slides down a valley for centuries, eventually releasing it. These erratics are easy to trace back to their parent rock by matching them to identical rocks up the likely ice flow route. Ice rafting is another way erratics have been moved great distances. Ice rafting results from an ice dam breaking apart and tremendous volumes of water and ice flooding through. These erratics are often detected by the high water marks left by the floods that moved them. Another cause of erratics is via icebergs floating in the ocean and eventually releasing the rock encased in the melting ice.
Brandywine Meadows Lounge Chair Erratic
Monstrous Erratic Along the Brandywine Meadows Trail
Enormous Broken Erratic Along the Flank Trail
Erratic at Beautiful Wedgemount Lake
Erratic at Russet Lake
Erratic Split by a Tree on the Helm Creek Trail
More Whistler & Garibaldi Park Hiking A to Z!
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Cirque: a glacier-carved bowl or amphitheater in the mountains. To form, the glacier must be a combination of size, a certain slope and more unexpectedly, a ...
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Armchair Glacier is one of the many easily identifiable mountain features around Whistler. Along with Wedge Mountain and Black Tusk, Armchair Glacier has a ...
Along Whistler’s Valley Trail near Rainbow Park you come across some impressively unusual trees. Unlike most other Whistler trees with straight trunks and ...
The Cordilleran Ice Sheet covered most of north-west North America for much of the last 2.6 million years. At the Last Glacial Maximum during the Last ...
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Wedgemount Lake itself is a magnificent destination for a day hike or spectacular overnight beneath the dazzling mountain peaks and stars above Garibaldi Provincial Park. Many sleep under the stars on one of ...
Russet Lake is a surreal little paradise that lays at the base of The Fissile, in Garibaldi Provincial Park. The Fissile is the strikingly bronze mountain visible from Whistler Village. From the Village ...
Garibaldi Lake is the centre and base for much of the hiking in Garibaldi Provincial Park. The Garibaldi Lake campsite is located on the amazing, turquoise shores of this massive and mostly still wild ...
July is a wonderful time to hike in Whistler and Garibaldi Provincial Park. The weather is beautiful and the snow on high elevation hiking trails is long ...
August hiking in Whistler definitely has the most consistently great, hot weather. You can feel the rare pleasure of walking across a glacier shirtless and ...
September hiking in Whistler is possibly the best month of all. The snow has melted far up to the mountain tops, yet the temperatures are still quite high. ...
Hiking in Whistler in October is often unexpectedly stunning. The days are much shorter and colder but the mountains are alive with colour from the fall ...
Hiking in Whistler is spectacular and wonderfully varied. Looking at a map of Whistler you see an extraordinary spider web of hiking trails that are unbelievably numerous. Easy trails, moderate trails and challenging hiking trails are all available. Another marvellous ...
Squamish is located in the midst of a staggering array of amazing hiking trails. Garibaldi Provincial Park sprawls alongside Squamish and up and beyond Whistler. Tantalus Provincial Park lays across the valley to the west and the wonderfully remote Callaghan Valley ...
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Victoria has a seemingly endless number of amazing hiking trails. Most take you to wild and beautiful Pacific Ocean views and others take you to tranquil lakes in beautiful BC Coastal Rainforest wilderness. Regional Parks and Provincial Parks are everywhere you turn in ...
The West Coast Trail was created after decades of brutal and costly shipwrecks occurred along the West Coast of Vancouver Island. One shipwreck in particular was so horrific, tragic and unbelievable that it forced the creation of a trail along the coast, which ...
Erratic or glacier erratic is a piece of rock that has been carried by glacial ice, often hundreds of kilometres. Characteristic of their massive size and improbable looking placement. Erratics are frequently seen around Whistler and Garibaldi Provincial Park. Either as bizarre curiosities or a place to relax in the sun. On a sunny day, a large sun-facing erratic will often be warm and sometimes even hot, providing a comfortable and surreal place to rest. 
Alexander Falls 
Ancient Cedars 
Black Tusk 
Blackcomb Mountain 
Cheakamus River 
Cirque Lake 
Sproatt East 
Wedgemount Lake 
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