OK think a large regional map, say the real life size of western Europe. Some elements are easy enough to figure out the scaling for. 1 mountain cluster = 1 mountain range. 1 town icon = 1 town. But 1 tree? I've been going back and forth between clearly delineating between forests and 'not forests' vs. bunching trees together but also having one-off trees in the open spaces because I thought it looked good. 50 trees together symbolizes a forest well enough. But what does 1 tree symbolize? Do you think one-off trees messes with the scaling for a map of that size? Any good rules of thumb for forests and one-off trees?