Final-Answer:
The following details should be included in a summary of the passage:
* Evidence shows that the mountains were inhabited over 10,000 years ago.
* Ancient pottery and rock art have been found in the mountains.
The following details should be omitted from the summary:
* The people who lived in the mountains were hunter-gatherers.
* Spaniards came to the mountains in the mid sixteenth century.
* Many of the early residents lived in caves.
The first detail is important because it provides evidence that the mountains were inhabited for a long time. The second detail is important because it provides evidence of the culture of the early inhabitants of the mountains. The third detail is not important because it does not provide any new information about the early inhabitants of the mountains. The fourth detail is not important because it does not provide any new information about the early inhabitants of the mountains.