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Channeling the Colorado River 
Delta Back From the Dead 
By: Peter Getty 
8/21/14
As a matter of geographic trivia…
01 
Did you ever wonder 
where the Colorado 
River drains into the 
ocean?
It Doesn’t.
Like too many of the world’s great rivers today, the Colorado 
River never makes it to the ocean in any recognizable form.
In fact, it’s rarely been closer than a 
hundred miles to its natural drainage 
point, into the Gulf of California, its 
remnants diverted by the Morelos Dam.
As you might expect, the disappearance of 
the Colorado River, which flows 1,450 
miles from the Rocky Mountains to the Sea 
of Cortez, has had a rather dramatic effect 
on the Colorado River Delta.
And not for the better.
01 
Almost 30 years of the 
river rarely reaching the 
sea, has resulted in an 
immense stretch of 
riparian forest having all 
but completely 
disappeared, replaced by 
invasive tamarisk shrubs.
01 
This has deprived 
hundreds of migratory 
bird species of a 
previously important 
place to rest and 
shelter during their 
arduous crossing of 
the Sonora Desert.
As it turns out, however, it may be possible to 
restore much of the delta with some surprisingly 
reasonable water management practices.
An agreement between the US and Mexico 
called Minute 319 was signed in November of 
2012, and last March, in accordance with it, the 
first "pulse flow" -- basically a small simulated 
spring flood along the delta -- occurred.
01
Scientists and observers from 
universities and government 
agencies of both countries 
were there to see what would 
happen, and the results, by 
all accounts, have been 
extremely promising.
01 
A periodic artificial flood has 
already hinted strongly that the 
delta is dormant, not dead
It's nice to see some good news for a change.
The fact the water flowing down the main river channel was tapped for the 
exclusive benefit of the environment, may well be an unprecedented 
demonstration of cooperation between the U.S. and Mexico on much 
needed environmental sustainability issues.
Channeling the Colorado River 
Delta Back From the Dead 
By: Peter Getty 
8/21/14

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USA & Mexico Work Togethr On Pulse Flow

  • 1. Channeling the Colorado River Delta Back From the Dead By: Peter Getty 8/21/14
  • 2. As a matter of geographic trivia…
  • 3. 01 Did you ever wonder where the Colorado River drains into the ocean?
  • 5. Like too many of the world’s great rivers today, the Colorado River never makes it to the ocean in any recognizable form.
  • 6. In fact, it’s rarely been closer than a hundred miles to its natural drainage point, into the Gulf of California, its remnants diverted by the Morelos Dam.
  • 7. As you might expect, the disappearance of the Colorado River, which flows 1,450 miles from the Rocky Mountains to the Sea of Cortez, has had a rather dramatic effect on the Colorado River Delta.
  • 8. And not for the better.
  • 9. 01 Almost 30 years of the river rarely reaching the sea, has resulted in an immense stretch of riparian forest having all but completely disappeared, replaced by invasive tamarisk shrubs.
  • 10. 01 This has deprived hundreds of migratory bird species of a previously important place to rest and shelter during their arduous crossing of the Sonora Desert.
  • 11. As it turns out, however, it may be possible to restore much of the delta with some surprisingly reasonable water management practices.
  • 12. An agreement between the US and Mexico called Minute 319 was signed in November of 2012, and last March, in accordance with it, the first "pulse flow" -- basically a small simulated spring flood along the delta -- occurred.
  • 13. 01
  • 14. Scientists and observers from universities and government agencies of both countries were there to see what would happen, and the results, by all accounts, have been extremely promising.
  • 15. 01 A periodic artificial flood has already hinted strongly that the delta is dormant, not dead
  • 16. It's nice to see some good news for a change.
  • 17. The fact the water flowing down the main river channel was tapped for the exclusive benefit of the environment, may well be an unprecedented demonstration of cooperation between the U.S. and Mexico on much needed environmental sustainability issues.
  • 18. Channeling the Colorado River Delta Back From the Dead By: Peter Getty 8/21/14