NOAA Training Chart: 39TR Great Lakes, West End Of Lake Erie
NOAA Training Chart 39TR covers the west end of Lake Erie in the Great Lakes.
Training charts are special editions of NOAA charts that are kept "frozen in time." Each one is date-locked and intentionally never updated, so the soundings, aids to navigation and other details stay the same from one class, textbook or test to the next. That is why mariner-training schools, instructors and students use them to learn and practice chart plotting and navigation, and why they are used in marine training tests.
For instructional purposes only. Not to be used for navigation. NOAA training charts carry this marking. Because a training chart is not updated, it does not show present-day conditions. For use on the water, choose a NOAA Custom Chart (NCC), built from NOAA's latest ENC data.


