Which area was deemed the most dangerous for railway construction?

The area considered the most dangerous for railway construction was British Columbia. This is primarily due to its challenging geography, which includes steep mountains, rugged terrain, and dense forests. The construction of railways in this region posed significant risks and difficulties, such as landslides, avalanches, and unstable soil, all of which could endanger workers and delay progress. Additionally, the environmental conditions, including heavy rainfall and varied weather patterns, contributed to the hazards associated with railway development.

While the Canadian Shield also presented challenges due to its rocky landscape and minimal access points, it lacked the extreme terrain variations found in British Columbia. The Prairies, known for their flat expanses, did not pose significant physical dangers to railway construction. Similarly, the Atlantic Coast presented its own difficulties related mainly to weather and maritime conditions, but these were not as inherently dangerous as the mountainous regions of British Columbia.