Colorado River Wild and Scenic River Addition Act of 1990 - Amends the Wild and Scenic Rivers Act to designate segments of the Colorado River in Utah as components of the National Wild and Scenic Rivers System.

States that nothing in this Act shall be construed to alter, amend, repeal, interpret, modify, or conflict with the Colorado River Compact and the Upper Colorado River Compact.

Amends Federal law to subject mining claims located on U.S. public lands to U.S. rights to use and dispose of mineral material surface resources on such claims before a patent is issued.

Sets forth the official short titles of two Acts of Congress, one in 1955 and the other in 1947, as the "Surface Resources Act of 1955" and the "Materials Act of 1947."

Colorado River Wild and Scenic River Addition Act of 1990 - Amends the Wild and Scenic Rivers Act to designate segments of the Colorado River in Utah as components of the National Wild and Scenic Rivers System.

Amends Federal law to subject mining claims located on U.S. public lands to U.S. rights to use and dispose of mineral material surface resources on such claims before a patent is issued. Entitles any owner of such a mining claim to be supplied, free of charge, with equivalent mineral material from the nearest mineral material site managed by any Federal agency which disposed of surface mineral material from the claim before a patent was issued to the claimant, and as a result the claimant does not have enough mineral material available for his mining operations.

Colorado River Wild and Scenic River Addition Act of 1990 - Amends the Wild and Scenic Rivers Act to designate segments of the Colorado River in Utah as components of the National Wild and Scenic Rivers System.

Amends Federal law to subject mining claims located on U.S. public lands to U.S. rights to use and dispose of mineral material surface resources on such claims before a patent is issued. Entitles any owner of such a mining claim to be supplied, free of charge, with equivalent mineral material from the nearest mineral material site managed by any Federal agency which disposed of surface mineral material from the claim before a patent was issued to the claimant, and as a result the claimant does not have enough mineral material available for his mining operations.

Colorado River Westwater Canyon Wild and Scenic River Addition Act of 1989 - Amends the Wild and Scenic Rivers Act to designate a segment of the Colorado River in Utah as a component of the National Wild and Scenic Rivers System.