Finding where a property boundary line has become established on the ground requires gathering the best available evidence that the reasonably prudent surveyor would find, evaluating that evidence, and then rendering a well-reasoned opinion on the factual question of location.

Most surveyors know, from study and training if not personal experience, that "least squares" are important. That might be the extent of what they know though.

Berntsen drive-in pipe monuments provide solutions for many different situations.

Dr. Pascal Sirguey had waited two years for this day and he was taking a few final minutes to savor the moment.

In the nearly three centuries since Pennsylvania’s 1737 “Walking Purchase,” the events have become shrouded in myth and legend until it is difficult to separate fact from fiction.

Five years ago, I surveyed a large shopping center. Previously, another firm had prepared an ALTA survey, but that plan had no elevations.

The survey party chief is the engineer’s on-the-scene reporter. They will spend a half-day to a month surveying a tract of land and gathering information to be used in the planning process.

Present-day Keg Island exists in the Mississippi River where the river flows between the states of Iowa and Illinois. It is over a mile long, maybe a quarter of a mile wide at its widest point, consisting of about 128 acres – and it is uninhabited.

Recently, my apprentice asked me "How close is close enough?" That question has many answers, which depend on the specific object we are locating and why it is being located.

In March 2011, a 9.0-magnitude undersea earthquake occurred off the east coast of Japan and triggered a powerful tsunami.