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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Hoary Marmots are the cute, pudgy, twenty plus pound ground squirrels that have evolved to live quite happily in the hostile alpine areas around Whistler. ...
Coast Douglas-fir trees are medium to extremely large trees that you will encounter in Whistler and Garibaldi Park. They are the second tallest conifer ...
The Garibaldi Ranges are a subdivision of the Pacific Ranges of the Coast Mountains. Deriving its name from Mount Garibaldi, the Garibaldi Ranges cover the huge ...
Waterbar and Cross-Ditch: the purpose of a waterbar or cross-ditch is to capture and redirect surface water from the road and channel it across the road ...
Crevasse: is a split or crack in the glacier surface, often with near vertical walls. Crevasses form out of the constant movement of a glacier over ...
Bushwhack is a term often used in Canada and the United States to refer to hiking off-trail where no trail exists. Literally means 'bush' and 'whack'. To ...
Parkhurst Ridge is an incredible place for a lot of reasons. Of course, the view is spectacular with Green Lake's absurdly vivid green coloured water. ...
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Jane Lakes are a very remote feeling set of lakes in the beautiful wilderness near Cheakamus Crossing. Consisting of three lakes, West Jane Lake, East Jane Lake and Little Jane Lake, they have a great ...
Joffre Lakes Provincial Park is a gorgeous park with extraordinarily coloured lakes, waterfalls, stunning mountain peaks and ominous glaciers pouring into the valley. Joffre Lakes is one of those incredible ...
Panorama Ridge is easily one of the most amazing hikes in Garibaldi Provincial Park. The 15 kilometre(9.3 mile) hike from the trailhead at Rubble Creek to Panorama Ridge takes you through beautiful and deep ...
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May is an extraordinarily beautiful time of year in Whistler. The days are longer and warmer and a great lull in between seasons happens. Whistler is fairly quiet ...
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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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