Quick Answer
To find north using a shadow stick, create a vertical stick in the ground, mark the end of the shadow with a small rock or stick, wait for 15-30 minutes, and draw a line between the two marks. The midpoint of this line will indicate south, with the original shadow mark at the end of the south line indicating the direction of east or west. Rotate 90 degrees to find the other direction.
Preparing the Shadow Stick Method
Before you start, find a spot with a clear view of the sun and minimal obstructions. Create a vertical stick in the ground using a sturdy branch or sapling, and ensure it is straight. Mark the end of the shadow with a small rock or stick by placing it next to the end of the shadow.
Waiting for Shadow Movement
Wait for 15-30 minutes to allow the shadow to move a significant distance. This time frame will depend on the sun’s angle and the time of day. As you wait, observe the shadow’s movement and take note of the direction it is moving.
Interpreting the Shadow Movement
Draw a line between the original mark and the new mark where the shadow has moved. The midpoint of this line will indicate south, with the original shadow mark at the end of the south line indicating the direction of east or west. Rotate 90 degrees to find the other direction. For example, if the original shadow mark is at the east end of the south line, the other direction will be west. This method is accurate within a 10-15 degree margin, making it a reliable way to find north in the wilderness.
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