What you have quoted are the last five sentences of the Introduction’s first paragraph. Momaday sets the trend at once by using specific descriptive language so that readers can imagine or picture the place for themselves. Here’s how this paragraph begins.
A single knoll rises out of the plain in Oklahoma, north and west of the Wichita Range. For my people, the Kiowa, it is an old landmark, and they gave it the name Rainy Mountain. The hardest weather in the world is there. Winter brings blizzards, hot tornadic winds arise in the spring, and in summer the prairie is an anvil’s edge. The grass turns brittle and brown, and it cracks beneath your feet. There are green belts along the rivers and creeks, linear groves of hickory and pecan, willow and witch hazel. At a distance in July or August the steaming foliage seems almost to writhe in fire.
Here—in addition to the kinds of verbiage analyzed by the other posted answer—the author includes even more descriptive language. He could...
(The entire section contains 2 answers and 582 words.)