Don't really like this measure of flatness. Measuring how flat a 90-m cell(square meters or 90m on a side not given in the abstract) is from the SRTM data set a

Don't really like this measure of flatness. Measuring how flat a 90-m cell(square meters or 90m on a side not given in the abstract) is from the SRTM data set and then averaging this value over all the state's cells. Nevada, a state full of mountains(see US topo map[1]), is ranked #9 due to (I would guess) the presence of many flat dry lake beds (lakes with water are removed from the study for some reason not well stated). No wonder our intuition is wrong if the measurement used to calculate the value bad. [1] https://upload.wikimedia.org/wikipedia/commons/5/50/Uspaintedrelief.png https://upload.wikimedia.org/wikipedia/commons/5/50/Uspainte...