What is a rough drawing drawn without a scale is called?

A rough drawing shows the basic appearance or structure or a schematic representation only.

Answer: A rough drawing drawn without a scale is called a Sketch Map

Let's discuss a rough drawing without a scale.

Explanation:

A sketch is a drawing mainly based on memory and spot observation and not to scale. Sometimes a rough drawing is required of an area to tell where a particular thing can be found or is located with respect to other places. Such a rough drawing drawn without scale is called a Sketch Map.

Thus, a rough drawing drawn without a scale is called a Sketch Map.