Historically, the Colorado River has carried nutrient-rich sediment through the Grand Canyon and deposited it on beaches and sandbars.
(the Colorado River; has carried; nutrient-rich sediment; through the Grand Canyon; T:Historically) (the Colorado River; deposited; it; on beaches and sandbars)
the Colorado River the Colorado River
has carried deposited
nutrient-rich sediment through the Grand Canyon T:Historically
it on beaches and sandbars