<P> Other archaeologists think instead that the main purpose of the road system was a religious one, providing pathways for periodic pilgrimages and facilitating regional gatherings for seasonal ceremonies . Furthermore, considering that some of these roads seem to go nowhere, experts suggest they can be linked--especially the Great North Road--to astronomical observations, solstice marking, and agricultural cycles . </P> <P> This religious explanation is supported by modern Pueblo beliefs about a North Road leading to their place of origin and along which the spirits of the dead travel . According to modern Pueblo people, this road represents the connection to the sipapu, the place of emergence of the ancestors or a dimensional doorway . During their journey from the sipapu to the world of the living, the spirits stop along the road and eat the food left for them by the living . </P> <P> Astronomy played an important role in Chaco culture . Many ceremonial structures were deliberately built along, a north - south axis alignment . The main buildings at Pueblo Bonito, for example, are arranged according to this direction . They likely served as central places for ceremonial journeys across the landscape . </P> <P> Sparse concentrations of ceramic fragments along the North Road have been related to some sort of ritual activities carried out along its expanse . Isolated structures located on the roadsides, as well as on top of the canyon cliffs and ridge crests, have been interpreted as shrines related to these activities . </P>

Where can original pueblo pottery now be found