NOAA Nautical Chart 18521
Columbia River Pacific Ocean to Harrington Point;Ilwaco Harbor
Chart 18521OG
NOAA Custom Chart (updated)
At the discretion of USCG inspectors, this chart may meet carriage requirements.
Scale: 40000
Actual Chart Size: 47.6" x 33.6"
Paper Size: 36.0" x 50.0"
For weekly NOAA chart update, please click here
Click here to access the Zone of Confidence (ZOC) diagram along with important notes. You can either view the information or print it. This chart may or may not contain insets.
The chart you are viewing is a NOAA chart by OceanGrafix. Printed “on-demand,” it contains all of the latest NOAA updates as of the time of printing. This chart is available for purchase online.
Chart 18521
Traditional NOAA Version (not updated)
Scale: 40,000
Actual Chart Size: 47.2" x 32.1"
Paper Size: 36.0" x 51.0"
NOAA Edition #: 77
NOAA Edition Date: 2019-03-01
OceanGrafix Edition #: 78*
OceanGrafix Edition Date: 2021-09-23*
NTM Notice/Date: 2524 2024-06-22
NTM: https://msi.nga.mil
LNM Notice/Date: 2424 2024-06-11
This chart has been canceled so it is NOT updated weekly and does NOT include all of the latest Notice to Mariners corrections. This chart is available for purchase online.
Turn Your Chart Into Art!
We now have five options for chart artwork that are perfect for home or office. Click on one of the options below to get started. We offer a variety of sizes and pricing.