Question

what does number beside a surveyed tree mean in topography​

Answer 1

The distinctive character- istic of a topographic map is that the shape of the Earth's surface is shown by contour lines. Contours are imag- inary lines that join points of equal elevation on the surface of the land above or below a reference surface, such as mean sea level.

Answer 2

Surveyrd tree serves as a prominent in the survey