The National Geographic Magazine, Volume 90National Geographic Society, 1946 - Geography Indexes kept up to date with supplements. |
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Page 645
Valley BY FREDERICK SIMPICH Sheep Walk Across the 3 - mile Yolo Causeway Which. WATER supply sets a limit to human activity . This truth is plain in the Central Valley of California . Pacific Ocean clouds each year roll east across ...
Valley BY FREDERICK SIMPICH Sheep Walk Across the 3 - mile Yolo Causeway Which. WATER supply sets a limit to human activity . This truth is plain in the Central Valley of California . Pacific Ocean clouds each year roll east across ...
Page 649
... Valley has the most water , while San Joaquin Valley has the most good land but needs more water . Another curious feature is the clever way engineers found to repel salt water , which seeped in from the sea to ruin vast areas of good ...
... Valley has the most water , while San Joaquin Valley has the most good land but needs more water . Another curious feature is the clever way engineers found to repel salt water , which seeped in from the sea to ruin vast areas of good ...
Page 656
... valley floor subject to periodic overflows . Since they also found that richest lands lie in areas most subject to flood , that is where they built their first low levees . As farming spread , more and more levees were built . In time ...
... valley floor subject to periodic overflows . Since they also found that richest lands lie in areas most subject to flood , that is where they built their first low levees . As farming spread , more and more levees were built . In time ...
Contents
France | 12 |
Bat banding | 125 |
Arkansas Resources and Development Committee | 273 |
Copyright | |
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