Also called day-mark. A large wooden X painted white and usually nailed to a tree close to the river's edge where it may be prominently seen by steamboat pilots; used to mark various channel conditions.

Phyllis Dale Travel recommends ...
For river cruises, train journeys and other leisure travel, domestic or international, contact our favorite travel agent, Phyllis Dale. She has the experience you need when planning a vacation.
Note: Phyllis does not book day excursions.
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