Precise locations are indicated by notations of distances from property lines, street center lines, or other landmarks.

• A. The color of the marker
• B. The width of the road
• C. Distances from property lines, street center lines, or other landmarks
• D. The altitude of the marker

Answer: (C)

Precise locations are shown by distances from fixed reference features such as property lines, street centerlines, or other landmarks. Using horizontal offsets from these stable references lets surveyors and workers recreate the exact spot of a buried facility, no matter who is marking it or when. Property lines and street centerlines provide consistent, legal references within the right-of-way and on parcels, while other recognizable landmarks give additional means to pin down a point. The color of the marker mainly identifies the type of utility, not where it sits; the width of the road isn’t a reliable reference, as it can change; and altitude refers to depth, not the horizontal position.