A simple stick-and-shadow technique can help estimate east and west on a sunny day. It is a backup skill, not a substitute for a map, compass and reliable route planning.
Shadow-tip method
- Place a straight stick vertically in level ground where its shadow is clear.
- Mark the tip of the shadow with a small stone.
- Wait 15–30 minutes and mark the new tip.
- The line from the first mark toward the second generally indicates west to east in the Northern Hemisphere under typical conditions.
- Use the approximate east–west line to estimate north and south, checking against known terrain features.
This is approximate: season, latitude, time of day and uneven ground can introduce substantial errors. Do not count on accuracy within five degrees. Moss growth is not a dependable compass. If truly lost, stop, assess your position and use emergency communication rather than wandering on a rough bearing.
Leave a Reply