As discussed earlier, a benchmark should be relatively permanent. So one is often set at a corner of a building, large boulder or some other location that will be there for a long time. If you were to work off a surveying post established by the U.S. Geological Survey, you would...
This article is part of a series on site surveying.
- Site Surveying: Terms You Should Know
- Equipment Options for Site Surveying
- Using a Hand or Abney Level
- Surveying: Checking Relative Elevations
- Establishing Onsite Treatment System Elevations Using a Benchmark