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zigzagging trail up the side of a steep ridge, hill or mountain. Allows for a more gradual and less strenuous ascent.
Talus slopes are more angled, sloping at 45 degrees or more, than a scree slope. Talus is also larger than scree and the rocks have sharper edges all of which makes a talus slope far more dangerous to cross and difficult to scramble up or down.
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(Time To First Fix) This is the amount of time it will take your GPS receiver to make its first position fix after it has been in the off position for over a month, lost its memory, or been moved for over 300 miles without an interim fix. Typically, this won't amount to more than 15 minutes.
also known as geographic north-the North Pole.
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Say What? UTM refers to the system grid that divides the entire world into 60 zones that are 6 degrees wide. The zones begin at east / west longitude 180 degrees and continue at 6 degree intervals. Each zone is then removed from the globe and flattened, losing its relationship to a sphere and introducing a certain amount of distortion. Since UTM projections distort the regions above 84 degrees north latitude and below 80 degrees south latitude far too much, they are not used on maps referencing the UTM grid. The UTM grid is based upon the meter and grid lines are always 1 kilometer (.62 miles) apart, making it much easier to estimate distance on a map. UTM coordinates are printed on a map in an east / west and north / south position. Numbers along the right side of a map are called northings (indicating the exact position in a north / south relationship). Numbers along the top of the map are called eastings (indicating the exact position an east / west relationship). Making sense of the numbers is quick and easy: Increasing easting numbers indicate you are heading east; decreasing indicate you are heading west. Increasing northing numbers indicate you are heading north; decreasing indicate you are heading south.
A checkpoint used as a point of reference for GPS.
A condition of zero or extremely limited visibility caused when fog or thick clouds or rapidly falling snow creates a situation where light from above is the same as the light being reflected off the snow so that there are no shadows and no visible horizon.
a despicable habit of dipping into others picnic baskets when they are not looking. Used to be just for food, but more recently has meant teens searching for booze.