What Is Surveying and What Does a Surveyor Do?
Surveying is the measurement and mapping of land and features on the earth's surface, and a professional surveyor is the licensed person who performs those measurements and certifies the results. You need a surveyor when you want to know where a property boundary legally sits, how land should be divided, or how a construction project should be laid out. In Missouri, the profession is represented by the Missouri Society of Professional Surveyors (MSPS), which describes itself as representing the interests of surveying and improving public and professional recognition of the field.
What Surveying Actually Involves
Surveying combines fieldwork and analysis. A surveyor measures angles, distances, elevations, and positions, then turns those measurements into maps, plats, descriptions, and reports that other people can rely on.
The work typically includes:
- Measuring — using instruments to record distances, angles, and elevations on the ground.
- Researching records — reviewing deeds, plats, and recorded land records to understand what has already been established.
- Interpreting boundaries — determining where a boundary line legally lies, not just where a fence or marker happens to be.
- Documenting results — producing plats, legal descriptions, and reports that can be recorded or used for permits and construction.
The distinction that matters most: a surveyor doesn't just measure where things are. A licensed surveyor applies law and record evidence to say where a boundary legally is.
Common Types of Surveys and When You Need One
Different tasks call for different surveys. The list below covers the situations most people encounter.
| Type of survey | What it answers | Typical trigger |
|---|---|---|
| Boundary survey | Where are the legal property lines? | Buying land, building a fence, resolving a neighbor dispute |
| ALTA/NSPS survey | What encumbrances, easements, and improvements exist? | Commercial real estate transactions, title insurance |
| Topographic survey | What does the terrain look like? | Site design, drainage, engineering |
| Subdivision/plat survey | How is a larger tract divided into lots? | Development, splitting property |
| Construction survey | Where should structures and utilities go? | Building roads, foundations, utilities |
| Elevation/certificate survey | Is the property in a flood zone? | Flood insurance, permitting |
If your question is "where is my line," you want a boundary survey. If your question is "can I build here and how," you likely need topographic or construction layout work on top of boundary information.
How Surveying Is Regulated and Licensed
Surveying is a regulated profession. Licensing exists so that boundary determinations and certified documents carry legal weight and accountability.
Using Missouri as an example, the pattern looks like this:
- State licensure — surveyors must be licensed by the state to practice and to certify surveys.
- Professional standards — licensed surveyors are held to standards of practice and ethics.
- Record keeping — surveys and plats are recorded so that boundary information stays available to the public and to future surveyors.
- Professional representation — organizations such as MSPS advocate for the profession and its standards.
Because requirements vary by state, always confirm the current licensing rules with the state board or a professional organization rather than assuming another state's rules apply.
Where to Find Surveyor Jobs and Land Records in Missouri
Two practical needs come up often: finding work in the field, and finding the records that surveying depends on.
For jobs, MSPS lists "surveyor jobs in Missouri" and "surveyor jobs" among its site keywords, and it also references a Survey Technician Council, which points to career paths that start below the licensed level. Job seekers can use the organization as a starting point for industry and career information.
For land records, MSPS lists "land records" among its topics. Land records are the deeds, plats, and recorded documents that surveyors research when establishing boundaries. If you're trying to understand your own property, the county recorder's office is the usual place to start, and a licensed surveyor is the person who can interpret what those records mean for your specific boundary.
Why Professional Organizations Like MSPS Matter
The Missouri Society of Professional Surveyors exists to represent the surveying profession in Missouri and to improve how the public and related professions recognize it. For someone outside the field, that translates into a few useful things:
- A central source for industry information and legislation affecting surveying.
- A connection point for jobs and career development, including technician-level roles.
- A voice for professional standards in a field where accuracy has legal consequences.
If you're a landowner, you probably don't need to join anything — you need a licensed surveyor. If you're considering the profession, or you're a surveyor looking for work and industry news in Missouri, MSPS is a reasonable place to look.
Quick Answers
What is surveying? Measuring and mapping land and features, then interpreting that data against legal records.
What does a surveyor do? Measures, researches records, determines legal boundaries, and produces certified maps and descriptions.
When do I need one? Buying or dividing land, building near a boundary, resolving a dispute, or preparing a site for construction.
How is it regulated? Through state licensure and professional standards; Missouri is one example, and MSPS represents the profession there.
Where do I find jobs or records? Jobs and industry information through MSPS; land records through county records and the surveyors who interpret them.