What is considered the easiest construction area for the railway?

The Prairies are considered the easiest construction area for the railway due to their flat terrain and lack of significant natural barriers. This region, which encompasses parts of Alberta, Saskatchewan, and Manitoba, features expansive grasslands and minimal elevation changes, making it ideal for laying down railway tracks swiftly and cost-effectively. The ease of construction in this area allows for efficient transportation and connectivity across the vast stretches of land.

In contrast, the Canadian Shield presents challenges due to its rocky and uneven landscape, which complicates construction efforts. The Rocky Mountains are notorious for their steep slopes and rugged terrain, requiring more complex engineering solutions, such as tunnels and bridges, that significantly increase construction costs and time. Similarly, British Columbia, while it has areas that may be easier than the Rockies, still contains mountainous regions and dense forests that can impede rapid railway construction compared to the open expanses found in the Prairies.