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How to read thermals when hunting in deep canyons?

April 5, 2026

Quick Answer

To read thermals in deep canyons, observe changes in vegetation, track patterns, and use the sun to identify thermal currents. Pay attention to areas with increased plant growth or insect activity, indicating rising warm air. Use a compass and the sun's position to determine wind direction and thermal currents.

Understanding Thermal Currents

When hunting in deep canyons, understanding thermal currents is crucial for locating game. Thermals are columns of rising warm air that can be detected by changes in vegetation, track patterns, and insect activity. In canyons, look for areas with increased plant growth or insect activity, indicating rising warm air. These areas can be 100 to 200 yards wide and are often associated with south-facing slopes.

Identifying Thermal Currents

To identify thermal currents, use a compass to determine wind direction and the sun’s position to determine thermal currents. In the morning, thermals often rise from the canyon floor, while in the afternoon, they rise from the canyon walls. Use a rangefinder to measure the distance between these areas and the game you’re tracking. This can help you determine the likelihood of finding game in a specific thermal current.

Reading Thermal Currents for Hunting

When reading thermal currents for hunting, look for areas with a mix of vegetation and open space. These areas are often associated with thermal currents and can be a good place to set up a blind or wait for game to move through. Use a spotting scope to observe game movement and thermal currents, and adjust your strategy accordingly. Keep in mind that thermal currents can shift throughout the day, so it’s essential to be flexible and adapt to changing conditions.

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