Can Oregon fishing guides launch in Washington to fish the Columbia river?

No. In general, Oregon-licensed guides cannot launch their boats in Washington to fish the Columbia River, even though the Columbia River separates Oregon and Washington. To launch a boat in the Columbia River and fish as a guide, a guide must be licensed by the state in which they are launching their boat. Guides launching from Washington would need a Washington guide's license, and guides launching from Oregon would need an Oregon guide's license.