Topography Unacceptable, South Slopes - Figure 11 Open Mountains Hills Mountains Navigable Waterways - Figure 12 Interstate highways - Figure 13 Endangered Species' Habitats - Figure 14 Land In Cultivation - Figure 15 Irrigated Land Cropland Land Suitable for Cultivation - Figure 16 Greater Then 67% suitable 50% to 67% suitable Flyways of Migratory Waterfowl - Figure 17 Seismic Hazards - Figure 18 Major Damage Potential Moderate Damage Potential 40 Degree Latitude - Figure 19 Windstorms - Figure 20 2% Probability of Winds Greater than 50 Knots 1% Probability of Winds Greater than 50 Knots Hail - Figure 21 Thunderstorms - Figure 22 Sheet Rainfall - Figure 23 Acid Rainfall - Figure 24 PH Between 4.0 and 5.0 PH Less than 4.0 Once the data was gathered for each of the above variables, the information was entered onto a map of the United States that was divided into grid cells. These grid cells were used for coding purposes, and the translation of the information to this form was essential to the completion of the project. Prior to entering the information on the gridded map of the United States, a decision was made concerning the size of the grid cell. The size of the grid cell represents a compromise between the time and resources available for the task and the desire to obtain as much spatial resolution as possible. The result was the choice of a grid square approximately 26 km or 16.2 miles on a side. The total land area within the grid square is approximately 170,000 acres. In Figure 1, the relationship of the rectenna site to the grid square can be seen. The rectenna occupies approximately 30% of a single grid square. While it is arguable that a greater resolution
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