Colorado River Research Chronology

1902

1916

1922

1923

1925

1926

1927

1928

1929

1930

1931

1935

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1940

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1960

1962

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1975

1977

1985

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1988

1989

1992

1993

1996

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1998

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2003

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2009

2010

2011

2012

2013

2014

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2016

2017

2018

2019

2020

2021

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