Beautiful place. Easy and free access. After a nice walk for about 15 minutes we reach the point where we can observe (with binoculars provided by the park) the ruins of a pre-Columbian settlement. The structure of the park is great with friendly staff, a good gift shop and bathrooms, and ample parking. Regularly they promote hiking to the ruins. Is only 9 miles from the main highway and it seems to me a place that should be visited by those who visit the Grand Canyon and Monument Valley.