(And anticipating running out of space on my current 1 gig card, I bought a 2gig for only $8 including shipping from newegg.) I'm still a big believer in bringing along a printed map (on waterproof paper, from software like National Geographic that scans USGS quads), along with a traditional sighting-mirror magnetic compass, but these third-party hobbyists now seem to be bringing out the full potential in Garmin's GPS units. (And when I toggled back-and-forth between Garmin 100k topo and the freebie 24k topo, the differen was striking.) I've downloaded several states and viewed them from within Mapsource: pretty much comparable to the areas that Garmin covers with 24k-derived detail. (Except for the WA map, which is currently $80.)Ĭhecking out the forums briefly, looks like other maps should be coming up soon. Yet now pretty much every western state is available, all referenced from one website:Īnd for free too. Various website had instructions for using free gov't data to create your own maps, but looked pretty involved.
I had read awhile back that some Polish software whiz had reverse-engineered the Garmin code, and I saw some downloadable maps, but not much. Plus the price would really add up if you ski in multiple states. but available only on micro SD cards, which means you can't combine different states or map types (e.g., city navigator & topo) on one card, you can't view the maps on a computer, and you'd better not lose that super-small card. Garmin has started to cover other states with 24k-derived detail: The nat'l park CDs are pretty good if they cover where you ski (and fortunately the entire AT corridor counts as a "nat'l park" for the eastern CD), but if they don't cover where you ski, you've been stuck with the 100k-derived nat'l CD. topo CD covers the entire country and is reasonably priced, but the contour intervals are really lacking. Okay, maybe everyone already knew this, but until now the big downside of Garmin GPS units has been the topo maps.
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