Chapter 5 Review—Navigation—Continued AIDS TO NAVIGATION SYSTEM
(ATON) GREEN LATERAL MARKER Should be kept on your left (port)
side when proceeding in the upstream (returning from sea)
direction. RED LATERAL MARKER Should be kept on your right
(starboard) side when proceeding in the upstream (returning from
sea) direction. RED AND GREEN LATERAL MARKER May be passed on
either side when proceeding in the upstream direction. The main
or preferred channel is indicated by the color of the topmost
band. The area located between a red and green lateral buoy is
the navigable channel. Red cone-shaped markers. Keep this marker
on your right (starboard) side when proceeding in the upstream
(returning from sea) direction. Green cylindrical-shaped
markers. Keep this marker on your left (port) side when
proceeding in the upstream (returning from sea) direction. Red
triangles with even numbers are the equivalent of nun buoys
(keep this marker on your right). Green squares with odd numbers
are the equivalent of can buoys (ke