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A McKenzie River dory, or drift boat, on the Boxcar Rapids of the Deschutes River near Maupin, Oregon

The McKenzie dory or Rogue River dory or called by many a Drift Boat is an evolution of the open-water dory, converted for use in rivers. The design is characterized by a wide, flat bottom, flared sides, a narrow, flat bow, a pointed stern, and extreme rocker in the bow and stern to allow the boat to spin about its center for ease in maneuvering in rapids.

McKenzie dories are specialized to run rapids on rivers, and first appeared on the McKenzie River in Oregon in the mid-20th century. They have a wide flat bottom for low draft, a narrow bow that is flat, often mistaken for the transom, which instead is pointed. The reason for this is that the rower faces downstream, therefore the part of the boat which first hits the waves (approaching from behind) must be pointed or very narrow to throw the water to the side. The bow is then widened so that a small outboard motor and/or anchor bracket can be attached. Those unfamilier with the craft would say that they are rowed backwards.

Unlike the McKenzie boats, the Rogue River dories are completely flat on the bottom with upward rakes under the prow and the stern. The McKenzie dories have a continuous rocker. The Rogue River guides needed a boat with greater carrying capacity, and the ability to hold the current. They don't pivot like McKenzies but they require less effort for rowing. The classic Rogue River dory with a nearly full deck, is a favorite among guides on the Colorado River. The high prow, great carrying capacity, ease of rowing makes it the preferred dory.

River dories are mainly used by fishermen who wish for more control of their boat than that which a rubber raft provides. They are reasonably safe, yet river conditions must be kept in mind at all times.

• "Rogue and McKenzie River Dory Photos & history"
• "History from Clackacraft"