 This study investigated the quality of global navigation satellite system, GNSS, signals and various types of forest stands, including coniferous and deciduous vegetation, for the purpose of optimizing the navigation of off-road vehicles. The study found that the accuracy of positioning was better in deciduous forests than in coniferous, spruce, or mixed vegetation. These findings could be applicable to the navigation of military vehicles, as well as forestry, rescue, and other off-road vehicles. This article was authored by Marion Rybansky, Vlastemille Craddockville, Philip Donnell, and others.