While GNIS might not be perfectly accurate in geoposition, it is the
authoritative set of geographic names for the US. It contains features
that are on no other map or spatial database.
Until now, anyway. ;-)
Karl
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If you go to the Board of Geographic Names site
(http://geonames.usgs.gov/), it indicates that all elevations are from
the National Elevation Dataset. (Which is probably what Garmin uses as
well.) NED doesn't really have the spatial resolution to resolve
features as small as the exact tops of
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