You are privileged to vary these to the limits of your imagination.
Once across the divide, we ran into a new sort of trouble.

You may remember that on our journey over we had been forced to travel for some distance in a narrow stream-bed.

During our passage we had scrambled up some rather steep and rough slopes, and hopped up some fairly high ledges.

Now we found the heretofore dry bed flowing a good eight inches deep.

The steep slopes had become cascades; the ledges, waterfalls.