How can the Sajama Lines be distinguished from modern roadways?
The lines are easily distinguished from modern roads by several criteria. Most modern roads are wide enough for vehicle traffic (either single or double lane) while the lines are much narrower. Roads and regular pathways tend to: a) wind across the landscape following topographic contours rather than climb steep hills or canyons; 2) have more rutted surfaces if unpaved; 3) connect rural and urban population centers of the past and present. Some colonial and modern roads were probably built on the lines.