On Tue, 7 Sep 2010 07:44:26 -0700, Mark Borgerson
wrote:

In article ,
says...
On Tue, 07 Sep 2010 00:10:44 +0200, Sjouke Burry
wrote:

Have you tried google earth? it has e few cute gps modes, and is free...

It also requires an internet connection unless you have discovered a
way to download their imagery.


Google Earth will download and cache 2GB of tile data. On a recent
trip from Ketchikan to Bellingham, that was enough to give me pretty
good data for the BC coast and Queen Charlotte Islands. It was
a bit of a pain to scroll through the projected path at the resolution
I thought appropriate. However, I think you can find scripts or
programs that will prefill your cache with a selected area and
resolution.


I'd like to learn how to do that because it would be useful for areas
that are not well charted.