From another forum:
" Free Electronic
Charts from NOAA
Submitted by John Nantz of Poulsbo WA on 10/25 at 10:12PM regarding General_interest.
This topic has been discussed before but I've got it to
work and thought I'd share a few sources and my experience.
Chart: Step 1; Available from the NOAA web site at
http://www.chartmaker.ncd.noaa.gov/mcd/enc/index.htm.
In "Overview" click on the hot link "(NOAA ENC®) "
In the "menu bar" (that's a stretch) near the top middle of the page select "Download NOAA ENC[registered trademark]"
At "Downloads" in the middle of the page, read, understand, and agree then click on "Proceed to NOAA Downloads" at bottom of page. This takes you to a table which is arranged by chart number where you can select the
charts you want to download. Click the boxes to the right for those you want.
It is possible to download the files to a folder so set one up ahead of time. Since the files are Ziped, if you don't have Winzip a link is available on that page, too. There is also a note that there is a New download site available that's under testing for those that like to singlehand across oceans can check out.
ENC Viewers: As for a free
software program there are some of those available too. Since my PC is older (switching over to Mac's), I went with 7c's because it works with Win95 through 2000. To access the various viewers available, select "Resources" from the original link at Step 1, near the top middle of the page.
Go to the section "Free
ENC Viewers" and select something that suits your computer/software situation. For older systems the first link is what you want and for newer systems the others would be better.
Downloading and getting the files operational is the easy part. The
work comes when trying to
import the map files into the viewers.
For the SeeMyDec files the one you want is named "*.000". Visit the menu "Display" to turn on
depth, lights, etc. otherwise they won't show in the map.
A fun
project for a rainy day.
Related link "
http://www.chartmaker.ncd.noaa.gov/mcd/enc/download.htm
Office of Coast
Survey - NOAA Electronic Navigational Charts, Download