What is a common element typically included in field notes?

A north arrow on sketches is a critical element in field notes because it orients the viewer to the cardinal directions, which is essential for interpreting the layout of the survey. The north arrow allows anyone reviewing the notes to understand the alignment and orientation of the features being documented. This is especially important in land surveying where the position and orientation of structures, boundaries, and other relevant features need to be precisely understood in relation to geographic coordinates.

Including a north arrow promotes clarity and ensures that subsequent users of the field notes can accurately interpret the spatial relationships represented in the sketches. This aids in making informed decisions and maintains the integrity of the information captured during the survey. It acts not only as a navigational aid but also as a means of preserving the context of the survey data, which can be crucial for any future work or assessments.