14m •
1971
Explores the distinctive features of the major rivers of the continent, and discusses their contributions to the farming, recreation, transportation and hydroelectric power of North America.
Coronet Instructional Films •
Budget: $0
Revenue: $0
2001•
8.0
2019•
0
2007•
8.3
2023•
3.0
2024•
0
2010•
0
2012•
0
2011•
9.0
2024•
0
2018•
0
2017•
8.5
2019•
6.0
2012•
0
1959•
0
2022•
7.5
2018•
8.0
1939•
0
