2019-07-01, 07:55
John Wesley Powell, Great Explorer of the American West
He was the first to survey the Colorado River, 150 years ago—and his ideas about water resources in that arid region were prescient
-- Read more on ScientificAmerican.com
https://blogs.scientificamerican.com/obs...ican-west/
He was the first to survey the Colorado River, 150 years ago—and his ideas about water resources in that arid region were prescient
-- Read more on ScientificAmerican.com
https://blogs.scientificamerican.com/obs...ican-west/