Colorado Land Surveyor Practice Exam 2026 – Complete All-in-One Guide to Exam Success

A "once-removed survey" is defined as a survey that is based on information derived from a previous survey rather than direct measurements. This means that the surveyor relies on existing data, records, and previously established survey points to complete the survey, instead of obtaining fresh measurements on-site.

This approach is often used in situations where direct access to the land is impractical, or where existing surveys provide sufficient information to establish boundaries or other important survey elements without undertaking new measurements. It is common to see this type of survey in urban areas or with properties that have been subdivided or developed over time, where historical survey data may be available.

The other options do not accurately reflect the definition of a once-removed survey. For instance, a survey conducted without measurements would not be feasible or reliable. Similarly, the involvement of a different surveyor does not inherently define a once-removed survey, as it’s the reliance on prior data that is key. Lastly, a survey that does not include boundaries does not align with the purpose of a survey, which typically involves delineation of property lines or boundaries based on established data.