"Ian W. Douglas" wrote in message
...

If I am not mistaken, Ordnance Survey maps show elevations. Check
before
you buy, of course.

They do indeed ... and now you don't even need to buy the chart to do
this task: here is the new entry which I am working up for the
uk.sci.weather FAQ which deals with this.

The best way to determine your *altitude* above mean sea level (again UK
only), is to use an Ordnance Survey map with contours marked at 5m
intervals. Use this link:-

http://www.ordnancesurvey.co.uk/oswebsite/getamap/

accept the terms/conditions, then use the search facility to find your
location and zoom in to the maximum extent. It should be possible to
determine with acceptable accuracy the height using the contours and
spot heights given.



Martin.


--
FAQ & Glossary for uk.sci.weather at:-
http://homepage.ntlworld.com/booty.weather/uswfaqfr.htm