Join Date: Apr 2009
Location: South Portland, Maine
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GPS Chart discrepancy article
The issue of "Points East" just now hitting the stands has an article about the significant chart discrepancy discovered at or near the spot where the Portland, Maine fireboat ran aground. If you aren't in New England or want to read it on line, it's now available at
Points East, the New England Cruising Magazine
If you want to see the charts, you'll have to read the full version of the issue available in the link at the bottom of the page instead of the feature story version.
I've had some interesting email exchanges on this with the owner of a navigation software equipment company who is on an industry/government charting standards advisory group and the fellow who wrote the article sidebar. I just got an email from a product manager at West Marine is found it very interesting and said is going to talk to their GPS suppliers.
There is going to be more discussion about this soon on the "Points East" forum:
Points East Parley - Index