At the end of its service life the first Colorado's hull was dismantled in April, 1862.
Its engine and boiler were removed and used to equip the new, larger stern-wheel Colorado that was built for the George A. Johnson & Company in San Francisco by John G. North a well known builder of steamboats in California.
[1] It was assembled and launched under the guns of Fort Yuma, in Arizona City, for fear of an attack by Confederate raiders.
[2]: 41 The new Colorado was equipped with the old Colorado's 80 horsepower steam engine, it was a 179-ton boat slightly larger than the older boat, 145 feet long and with a 29-foot beam.
[2]: 41 Captained by Stephen Thorne, the Colorado II remained on the river until it was dismantled in 1882.