How to analyze topographic maps with Google Earth for hunting?

Using Historical Imagery to Identify Changes

When using Google Earth for hunting, it’s essential to study historical imagery to track changes in the landscape and vegetation. This can be done by accessing the ‘Historical Imagery’ option in Google Earth, which allows you to view images from previous years. For example, you can compare a 2015 image with a 2020 image to identify areas that have experienced changes in vegetation, such as the regrowth of a burned area or the clearing of a field. This can help you identify areas where game may have been previously concentrated and predict where they may return. Look for areas with a history of food sources, such as agricultural fields or beehives, which can attract game during different times of the year.

Identifying Terrain Features and Funnel Points

Terrain features, such as ridges, valleys, and water sources, play a crucial role in determining game movement patterns. When analyzing topographic maps with Google Earth, look for areas where these features converge, creating funnel points where game is likely to concentrate. These funnel points can be areas such as river crossings, creek beds, or hilltops, where game is funneled through a narrow passage or chokepoint. By identifying these areas, you can predict where game will be most active and plan your hunt accordingly. For example, a ridge that connects two valleys can be a funnel point where game will be funneled through, making it an ideal location for setting up a stand or blind.

Mapping Game Movement Patterns

Once you have identified the terrain features and funnel points, use Google Earth to create a map of the area. By combining this information with historical imagery and other data, you can begin to track game movement patterns and predict where they will be most active. Use a combination of arrows and lines to indicate the direction of game movement, and label areas where game is likely to congregate. This will give you a clear visual representation of the area and help you identify the best locations for setting up a stand or blind. For example, if you notice that game is consistently moving through a narrow valley during the morning and evening hours, you can plan your hunt accordingly and position yourself in an area where you are likely to intercept the game.