Scale: 20,000
Paper Size: 36.0" x 32.0"
Actual Chart Size: 34.2" x 28.3"
Edition #: 9
Edition Date: 2004-03-01
NTM Notice/Date: 1424 2024-04-06
NTM: https://msi.nga.mil
LNM Notice/Date: 1224 2024-03-19
LNM: http://ocsdata.ncd.noaa.gov/nm
NTM = NGA Notice to Mariners
LNM = Local Notice to Mariners
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 or from one of our retailers.
Buy Online chart 18539 - Columbia River Blalock Islands to McNary Dam