The Prehistoric Irrigation of the Casa Grande Ruins Area of the Gila River in Southern Arizona

This image reflects both prehistoric and historic landmarks as well as irrigation water ways feeding from the Gila River. In addition, the map shows roads, highways, modern canals, railroad line, cemeteries, modern buildings and their location surrounding the Gila River and Casa Grande Ruins. Every canal and ruin shown on the map was measured, photographed an dplotted to scale.

本图像既展现了源自希拉河（Gila River）的灌溉水道，同时涵盖了史前与历史地标。此外，该地图标注了环绕希拉河与卡萨格兰德遗址（Casa Grande Ruins）分布的道路、高速公路、现代运河、铁路线、墓地及现代建筑的位置。图中所有运河与遗址均经过实测、拍摄，并按比例绘制。