Zerdly

Control Mark Description Generator

Generates a survey control mark description block with datum, coordinates, reduced level and station details.

100% FreeRuns in your browserBasic
How to use this calculator

Mark details

Everything stays in your browser. Use a consistent style across all your control marks.

Description

Control mark description

How to use this calculator

  1. Fill in the mark's ID, type, material, location, datum, coordinates, RL and who established it.
  2. The description block builds as you type — copy it or download the .txt.
  3. Leave a field blank to omit that line.

How it works

A control mark description tells the next surveyor how to find and trust the mark. Keeping a consistent format — ID, type, location, datum and coordinates — makes a station register quick to read and hard to misuse.

Everything is assembled in your browser; nothing is uploaded. It's a formatting aid, not an official station summary.

Worked example

A permanent mark on a lot corner. PM 1234, star picket & plate at the NW corner of Lot 5, MGA2020 Zone 50, E 390123.456 N 6460987.654, RL 12.345 — laid out as a tidy description block.

Frequently asked questions

Does this register the mark anywhere?

No. It only formats a description for your own records. Lodging or registering a mark follows your jurisdiction's process.

Is this official course material?

No. It is free study support mapped to surveying course levels — not official North Metropolitan TAFE content or advice. Always follow your lecturer and the official assessment brief, and check your own working.

Related tools

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Cite this tool

Zerdly. (2026). Control Mark Description Generator. Retrieved from https://www.zerdly.com/tools/control-mark-description-generator/

Tip: Enter any known values to calculate the remaining results.

All calculations run in your browser. Your inputs are never saved or transmitted.