I was riding north along a highway on what appeared to be a motorized bicycle. The terrain was hilly, and the road covered about an inch of snow and ice. I rode very slowly and carefully so as not to slide out. All around were medium-sized conifer trees that looked like Black Spruce.
The road then turned to sand, and again I rode slowly and carefully to avoid sliding out. Immediately the road ended at a large gorge with talus rock and sand that were dropping straight down hundreds of feet to a broad river wash that stretched out for maybe a half mile in width. A bridge was under construction before me, but I could not cross it. There were several parallel bridges under construction. To my right was a temporary bridge carrying truck and vehicle traffic across the wash.