These large, high contrast ground control points help to increase accuracy during a drone survey.

Ground markers, also known as ground control points (GCPs), are targets on the ground with known coordinates. They can be used to provide reference points to help collect correct and accurate survey data.

• Large ground control targets - 500mm x 500 mm
• Surveying GCPs for use with drones
• Includes 4 steel fixing needles
  
• Recommended for use with non-RTK mapping missions