|Recording number||A sequential number identifying the data recorded|
|Mileage||The cumulative mileage given by a pedometer. It is usually accurate to about 10% versus "truth" and from comparing "up" miles with "down" miles. A detailed comparison of my pedometer against the very accurate Bright Angel Trail mileages shows overall excellent agreement.
|Time arrived||The time that I arrived at the place that is being recorded.|
|Time left||If present, the time that I left that place that is being recorded. If absent, I left at the same time as I arrived.|
|Altitude||The altitude given by my altimeter. It is usually within 100-200' of the true altitude. I never reset my altimeter, so it is not guaranteed to be more accurate at the beginning of a hike. (I haven't found it necessary to reset it, since it is generally within the quoted 100-200'.) Differential measurements are of course independent of my lack of resetting, so if you desire, you can recalibrate it if you can determine the true altitude for some stop.|
|Comments||Cryptic pieces of information that are sometimes added for a given stop, some of which I no longer know what they mean! Here are some I do know:
Copyright © 1996-1999 by Tom Chester.
Permission is freely granted to reproduce any or all of this page as long as credit is given to me at this source:
Comments and feedback: Tom Chester
Last update: 14 October 1999