Gravel quarry

This gravel quarry in Johnson, Vermont (USA) was surveyed with an eBee X drone carrying an Aeria X camera. The flight height was planned at 122 m / 400 ft AED at an estimated GSD of 2.54 cm / 1 in. However, because of the depth of the quarry, the final GSD was 3.59 cm / 1.41 in.