The Charles H. Spencer was a stern-wheel steamboat that was briefly used on the Colorado River to transport coal for gold refining operations at Lee's Ferry, Arizona.

Charles Harvey Spencer (1872-1968) was a prospector who arrived at Lee's Ferry in 1910 in search of gold hidden in shale of the Chinle Formation.

His company, American Placer Corporation, processed the shale by creating a mud and then removing the gold deposits by mercury amalgamation, which required a steady source of power.

The various parts were manufactured in San Francisco, shipped by rail to Marysvale, Utah, and conveyed by ox-cart to the mouth of Warm Creek, where the boat was assembled.

[2] Its boiler remains in the river marking the site of its sinking and a historical marker is located above it on the bank, about 1/4 mile east of the end of Lees ferry road.