Land management agencies [electronic resource] : restoring fish passage through culverts on Forest Service and BLM lands in Oregon and Washington could take decades.
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[Washington, D.C.] : U.S. General Accounting Office, [2001]
Land management agencies : restoring fish passage through culverts on Forest Service and Bureau of Land Management lands in Oregon and Washington could take decades
Restoring fish passage through culverts on Forest Service and BLM lands in Oregon and Washington could take decades