Answer:
O the frozen landscape surrounding the trail.
Step-by-step explanation:
The description above allows the reader to imagine the frozen landscape surrounding the trail. On top of the ice which covered the Yukon was pure white snow. This snow found on the landscape formed undulations which are rising and falling outlines.
The snow could be found North and South of the environment. Its color was described as unbroken white. The spruce-covered island was covered in snow.