---- Shawn Wright <vwdiesels@GMAIL.COM> wrote:
> I've often thought having an altimeter in the van would be a useful addition
> when driving in the mountains, as knowing the elevation of a pass doesn't
> tell the whole story if you don't know your current elevation. Has anyone
> tried one with any success?

Well, a traditional analog altimeter, with a diaphragm to measure air pressure, would work.  However, one has to keep in mind that air pressure is what is being measured, and reported as altitude on the gauge dial.  Consequently, one can sit in camp and view an alarming descent as a thunderstorm moves in.

Modern folks might use a gps.  There will be no error due to air pressure with that device.

David McNeely