What literary device is exemplified in the description of the valley being "as clear as in a picture"?

The description of the valley being "as clear as in a picture" uses a simile, which is a literary device that makes a comparison between two different things using the words "like" or "as." In this case, the clarity of the valley is being compared to the clarity one might see in a picture, suggesting that the valley is exceptionally clear and visually striking. This comparison helps create a vivid image in the reader's mind, enhancing their understanding and appreciation of the scene being described.

Similes are effective in writing because they allow readers to relate new or complex ideas to familiar images or concepts, which can deepen their emotional connection to the text. The use of "as" in the phrase clearly identifies this as a simile, distinguishing it from other literary devices that do not rely on direct comparisons in the same way.