Which of the following is considered a type of "Dignity of Calls"?

The concept of "Dignity of Calls" in land surveying refers to the hierarchy or precedence of various types of property descriptions or boundaries when determining a property's limits. Among the options provided, "Natural" is considered a type of Dignity of Calls.

Natural calls refer to physical features of the landscape, such as rivers, trees, or mountain ranges, that can be used to define property boundaries. These natural monuments are often considered the most reliable references because they are visible and typically unchanging over time.

Understanding the hierarchy of calls is crucial for surveyors, as natural features generally take precedence over man-made or artificial calls, such as those defined by boundaries of contracts or government regulations. This helps ensure that property lines are established based on the most stable and lasting elements of the physical environment.

The other choices—contractual, artificial, and regulatory—refer to man-made references, which, while important, usually rank below natural calls in terms of precedence.