Final answer:
The moment when Jonas and Gabe ride the sled to a new community is the Climax of the story, where the main conflict peaks and leads towards a resolution.
Step-by-step explanation:
When Jonas and Gabe find a sled and ride it to what seems to be a new community, this element of the plot is known as the Climax. The climax represents the peak of the action, the main event where tension created during the rising action comes to a head. This is a turning point for the characters and often results in a change or resolution in the story's conflict.