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What is the principal meridian mostly used in Iowa?

  1. First principal meridian

  2. Third principal meridian

  3. Fifth principal meridian

  4. Seventh principal meridian

The correct answer is: Fifth principal meridian

The principal meridian primarily used in Iowa is the Fifth Principal Meridian. In the Public Land Survey System (PLSS), meridians serve as reference lines that help survey and delineate land in rectangular survey systems. Iowa primarily utilizes the Fifth Principal Meridian, which runs through the state and serves as the baseline for surveying land. This meridian has been essential in establishing the legal descriptions of land parcels, which in turn aid in property transactions and real estate practices within the state. The other principal meridians, such as the First, Third, and Seventh, are significant for different regions across the United States, but their influence and application do not extend to Iowa in the same manner as the Fifth Principal Meridian. This makes the Fifth Principal Meridian critical for understanding land surveys and property boundaries in Iowa.