The natural dam was formed by Colorado River delta sediments depositing at the mouth of the Gulf of California near Cerro Prieto, Mexico.
(The natural dam; was formed; by Colorado River delta sediments) (Colorado River delta sediments; depositing; at the mouth of the Gulf of California near Cerro Prieto)
The natural dam Colorado River delta sediments
was formed depositing
by Colorado River delta sediments
at the mouth of the Gulf of California near Cerro Prieto