Quick Answer
Navigating with a pocket mirror is possible, but it requires understanding the position of the sun and the surrounding environment.
Understanding the Basics
A pocket mirror can be used as a makeshift compass or to determine direction by observing the position of the sun. To do this, hold the mirror at a 45-degree angle and observe the reflection of the sun. During the day, the reflection will be at its brightest when the mirror is facing the sun directly. If the sun is obscured, use the position of the sun’s shadow on the ground to estimate direction.
Calculating Direction
To calculate direction using the sun, use the following method: if the sun is north of the observer, the shadow will be east-west. If the sun is south of the observer, the shadow will be north-south. This method is accurate within 1-2 hours of the equinoxes and during the winter months when the sun is lower in the sky. Between the solstices, this method is more accurate. Note that this method does not work during periods of overcast weather.
Additional Navigation Tips
In addition to using the sun, a pocket mirror can also be used as a makeshift signaling device in emergency situations. When held at an angle, the mirror can reflect sunlight towards any observer, potentially signaling for help. To increase visibility, use the mirror to reflect sunlight towards any surrounding hills or higher ground. This technique can be used to signal for help during the day or at night when a fire is not feasible.
Find more answers
Browse the full Q&A library by topic, or jump back to the topic this question belongs to.