Why bother?

The only reason for me is to get a rough idea relative to previously recorded rough ideas.

That said, isolated altitude readings are very useful. For example if I start out at 5,000' and my hike is 5 miles to 10,000' then it's more useful to know how high I am (or how many more 1,000s I have to climb) than to know how far I've gone. For this purpose, an error of 3' or even 30' is irrelevant.


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