Land records · Parcel maps · October 5, 2026
What Do Survey Flag Colors Mean?
What survey flag colors mean: pink is common for survey work, but colors vary by surveyor. How survey flags differ from utility marks and wetland flags.
What do survey flag colors mean? Under the widely used APWA uniform color code for marking, pink is reserved for temporary survey markings, and many surveyors use pink or fluorescent pink flagging. However, there is no single national rule for surveyor flag colors, so firms often pick their own colors, such as orange, red, or blue, to stand out from other markings on a site. Ask the surveyor what their colors mean, and read any writing on the flags or stakes. This page is general land-records background, not legal advice.
Common uses of flagging
| Marking | Common appearance |
|---|---|
| Property corners | Wooden stake or lath with flagging next to an iron pin or monument |
| Line flags | Flagging tied to trees or stakes along a boundary |
| Offset stakes | Stakes set a measured distance from a corner, labeled with the offset |
| Construction staking | Lath labeled with cut, fill, or offset for builders |
| Wetland boundary | Flags often printed “wetland boundary” or numbered, in colors chosen by the delineator |
| Utility marks | Paint and flags in APWA colors, such as red for electric |
Utility marking colors
The APWA code assigns red for electric, yellow for gas and oil, orange for communications, blue for drinking water, purple for reclaimed water, green for sewer, pink for survey, and white for proposed excavation. See call 811 before you dig.
Reading stakes and lath
Survey stakes often carry abbreviations:
- PC or COR: property corner.
- IP or IR: iron pipe or iron rod.
- O/S: offset, with a distance.
- C or F: cut or fill, with a depth.
- Station numbers: distance along a line.
On plats, symbols for found and set monuments carry similar meanings. See what found and set mean on a plat and what is a monument on a plat.
Flags are not the corner
Flagging and lath are temporary and easy to move. The legal evidence is the monument, often an iron rod with a plastic cap stamped with the surveyor’s license number. See what a surveyor cap number means.
Who placed the flags?
If flags appear on or near your land, they may be from a neighbor’s survey, a utility locate, a road project, a timber cruise, or a wetland delineation. Look for printed text, contact the surveyor named on any cap or stake, or check the county for recent surveys.
Do not move survey markers
Removing or disturbing survey monuments can be illegal in many states and may lead to costly resurveys. Flagging can be left in place until the project is done.
Bottom line
Pink is the standard APWA color for survey markings, but surveyors often choose their own flag colors, so ask the firm and read stake writing. Utility marks follow the APWA code, and the real corner is the monument, not the flag. Check parcels on the Platbookmapper map.
What do survey flag colors mean FAQ
What does pink survey flagging mean?
Pink is the APWA color for temporary survey markings and is common for survey work.
Do survey flag colors have a national standard?
Not strictly. Surveyors often choose their own colors.
What does a wooden stake with a flag mean?
Often a property corner or offset, usually near an iron pin.
Can I remove survey flags?
Avoid disturbing them until the project ends, and never move monuments.
How do I know who placed the flags?
Read printed text or caps, or contact local surveyors and utilities.