"The imperfectly explored mountain range skirting the Rio Grande del Norte is picturesquely grand.
"Facing the river, the foundation of the chain is entirely volcanic.
"Colossal rocks form the abrupt walls of the gorges between these mountains, and are often so soft and friable that, in many places they were easily scooped out with the most primitive tools, or even detached with the fingers alone.
"In these gorges, through many of which run unfailing streams of water, often expanding to the proportions of regular valleys, the Pueblo Indian raised the modest crop that satisfied his vegetable craving.
"As it is easier to excavate dwellings than to pile up walls in the open air, the aboriginal Mexican's house-building effort was mostly confined to underground construction. He was, in fact, a 'cave-dweller,' yet infinitely of more advanced architectural ideas than our own remote forbears of Anglo Saxon cave-dwelling times.
"Most of these residences might boast of from three to four rooms. They were arranged in groups, or clusters, and some of them were several stories high.
"Rude ladders were used for mounting to the terrace or roof of each successive story. The Pueblo had, literally, a hearthstone in his primitive home. His fireplace was supplied with a hearth of pumice-stone. A rudely built flue, made of cemented rubble, led to a circular opening in the front wall of his cave-dwelling. Air-holes admitted their scanty light to these dusky apartments, in which there were not only conveniences for bestowing wearing-apparel, but niches for ornamental pottery, precious stones, and the like Indian bric-à-brac. The ground-floor entrance was a rude doorway closed by a hide, or mat. Plaited mats of Yucca leaves, and deer-hide, by day rolled up in corners of the sleeping-apartments, served for mattresses at night. A thick coating of mud, washed with blood, and carefully smoothed, gave to the floor a glossy effect. Some of the rooms are known to have been in dimension ten feet by fourteen. Their walls were whitewashed with burnt gypsum.
"Though the time when these traditional cliff-dwellers wooed and wed, lived and died in the Rialto vale is long, long gone by, the ruins of their homes may still be seen. Some of them are tolerably intact; others are crumbled away to mere shapeless ruins.
"And now, having described their dwellings, let us note some of the most marked and interesting characteristics of the men and women who made in them their homes.
"We are apt," said the Antiquary, "to accord to our more enlightened civilization the origin of communism; yet, antedating by ages our latter-day socialistic fads, the communal idea enthused this unlettered people, and to a certain extent seems to have been successfully carried out.