Answer:
The setting reveals the dangers of the adventure.
Step-by-step explanation:
"David Crockett: His Life and Adventures" by John S. C. Abbott detail the childhood life and adulthood, and the adventures he took. The book follows the young Crockett and the story of his adventures, becoming one of the most famous historical figures in American history.
As given in the question, the excerpt shows the dangerous trail and setting that the adventure takes them. The narrator reveals the "steep hills" with the horses running amok, which led to the destruction of the wagon. But luckily, David escaped "unscathed", which also adds to the feeling of a dangerous setting.
Thus, the setting revealed in this excerpt shows how dangerous the adventures were.