Accuracy of Track Log milage when traveling on steep mountains

Discussion in 'Garmin GPS' started by Keitht, Jan 29, 2023.

  1. Keitht


    Aug 17, 2018
    Likes Received:
    We often hike in very rough terrain where we are traveling at steep angles up and down mountains. At the end of the day, if the track mileage record says " 5 miles," has that mileage been computed only on a straight line? If so, then our actual miles walked would be considerable more. Or does the milage include the miles walking up these steep angles? And if you are climbing down a vertical rock wall, will your mileage compute to zero???
    Keitht, Jan 29, 2023
  2. Keitht

    Nuvi-Nebie Moderator

    Aug 16, 2015
    Likes Received:
    Most GPSs assumes a 'flat plane' in other words it calculates distance in between co-ordinates, if a GPS location does not change but you move vertically upwards by say a 10000 feet the distance will be calculated as zero, the GPS may be aware of an altitude change but this is not used in any distance calculations

    Some Garmin watches do measure what they call '3D Distance' : -
    Nuvi-Nebie, Jan 29, 2023
    Keitht likes this.
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