What is one of the activities involved in locating underground pipelines?

Locating underground pipelines involves a range of activities to ensure accurate identification and assessment of the pipeline's location. One key activity is using ground-penetrating radar. This technology allows for detailed imaging of sub-surface structures, providing a non-invasive method to detect buried pipelines. Digital mapping is also crucial, as it integrates geographic information systems (GIS) and other data to visualize where pipelines are located relative to other infrastructure and natural features.

Regular excavation might occur in some cases, but it is not a primary method used specifically for locating pipelines. Instead, excavation is usually considered a more invasive approach, which can disturb the soil and surrounding environment. Understanding the various tools and techniques, such as ground-penetrating radar and digital mapping, highlights their importance in pipeline management and safety. Therefore, since both ground-penetrating radar and digital mapping are valid methods for locating underground pipelines, this combination justifies the choice that encompasses all these activities.