和科罗纳多环游大峡谷
Around the Canyon with Coronado
在大坝前划木筏过河
Rafting the river before dams
每所学校的美国历史
American history per school
河畔的霍皮人和哈瓦苏派人
The Hopi & Havasupai on the river
美景点的景色
A view at Grandview Point