Men using a rotary snow plough to clear a snow slide.

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Introduction

The ‘Obstacles to Transportation Learning Object Collection’ will help create understanding of what snow avalanches and slidepaths are and how these affect transportation. These snowslides affect roads, railways and industry in Canada, and have been obstacles to transportation for as long as people have tried to inhabit this vast country. From First Nations travel and settlement, to the building of the Canadian Pacific Railway, the Trans-Canada and other highways, avalanches have been a concern and an obstacle. This learning object collection demonstrates the avalanche obstacle, as well as how this obstacle has been observed, defended, attacked, removed and better understood over time.

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