This description relates to Mr. Stonecrop’s role in the main conflict of the story because Mr. Stonecrop, like a mountain, is intimidating and strongly holds his position against the people of Malaga Island.
Explanation:
Mr. Stonecrop is the Richest man of the town, wants to turn Malaga Island into a tourist spot. He is described a strong and extremely intimidating person that's the reason why the comparison with a mountain is more than perfect since it is immobile, it is impossible to destroy, and more importantly has an impressive visual presence and size.
Johnny states that the Southern gentlemen remind him of Dally. In this comparison, Johnny is speaking of gallantry. ... Johnny admires Dally because Dally is never scared, like the men riding into certain death.