As you approach Ashland Light (mile 378.1...

Question 1 of 29218fork_a6db868f22e84c6ea4a

As you approach Ashland Light (mile 378.1 AHP) which daymark would you see?

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Question 1 of 29218

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As you approach Ashland Light (mile 378.1 AHP) which daymark would you see?

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🔍 Key Concepts

• Western Rivers AHP (Above Head of Passes) buoyage system and how mileage marks relate to river banks • Meaning of red vs. green aids to navigation on rivers (which side of the channel each marks when going upstream) • Shapes used for daymarks in the U.S. lateral system (Nun vs. Can equivalents on fixed structures)

💭 Think About

• When you are going upstream on the Mississippi system (AHP), which color marks the right descending bank, and which marks the left? • For fixed daymarks (not floating buoys), which shapes are typically associated with the red side and which with the green side? • Ashland Light is identified by a mileage mark; think about whether lighted river structures near shore more often mark the right or left bank in that area when proceeding upstream.

✅ Before You Answer

• Confirm how the Western Rivers system defines the upstream direction and which side red aids are on when proceeding upstream • Review which shapes (triangle/square vs. nun/can) correspond to red and green marks on fixed dayboards • Make sure you are thinking in terms of upbound (AHP increasing), not seaward/downbound, when deciding the color and shape.