To provide for the protection of the remaining ancient forests on the Federal lands of the States of Washington, Oregon, and California, and for other purposes.

Ancient Forest Protection Act of 1990 - Establishes the National Ancient Forest Reserve System. Designates certain lands in California, Oregon, and Washington as components of such System. Declares that all Federal lands in such States which qualify as ancient forest or associated forest and are not designated as components of the System shall be managed as if they are. Requires the...