Is this a trick question? A ton of anything should weigh a ton.
Colorado River
The weight of the river rock depends with the size and the type of rock in question. There are some yard river rocks that weigh up to 2700 pounds.
The Grand Canyon was formed by the Colorado River wearing away at the rock over a long period of time. Some estimate in the millions of years.
The Colorado River.
the rock cycle and the Colorado river are driving forces behind.
some states in the rock mountain region
The Grand Canyon was formed from a river. It eroded away at the rock for millions of years, then dried up to form what we see today.
about 2500 pounds.
Colorado has 33 different Rock Creeks.
The Grand Canyon was formed by the Colorado River wearing away at the rock over a long period of time. Some estimate in the millions of years. +++ "was formed". It is still being formed as it still carries the R. Colorado and its tributaries.
the Grand Canyon
That depends entirely upon how large the rock is. You'd have to weigh each individual rock to see for certain.