 The use of unmanned aerial systems, UAS, has been shown to be effective in providing accurate and timely forest inventory information at a local scale. This is due to its ability to capture high spatial and temporal resolution images, which can then be used to accurately estimate key forestry parameters such as lorries mean height, hl, dominant height, dom, stem number, n, basal area, g, and stem volume, v. Furthermore, the use of UAS imagery allows for more efficient and cost-effective forest inventory projects by allowing for quicker and more flexible project customization and implementation even under adverse weather conditions. This article was authored by Stefano Puliti, Hans Olwerka, Tariago Bakken, and others.