RT @USGS: [PUB] "Strandlines from Large Floods on the Colorado River in Grand Canyon National Park, Arizona." (SIR 2021-5048) https://t.co…
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RT @USGS: [PUB] "Strandlines from Large Floods on the Colorado River in Grand Canyon National Park, Arizona." (SIR 2021-5048) https://t.co…
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RT @USGS: [PUB] "Strandlines from Large Floods on the Colorado River in Grand Canyon National Park, Arizona." (SIR 2021-5048) https://t.co…
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[PUB] "Strandlines from Large Floods on the Colorado River in Grand Canyon National Park, Arizona." (SIR 2021-5048) https://t.co/u6PlLdPGB9 #GrandCanyon #Arizona https://t.co/RpPiIfIF5C