**Table 2.** *Cont.*

Although our analysis pipeline extends to Alaska, Hawaii and other minor islands and United States protectorates, we have restricted all figures to only the conterminous United States for simplicity. To illustrate the role of topography on various watershed characteristics, in most figures, we have superimposed our analytical products on a hillshade relief we generated from the 30 m resolution ASTER digital elevation model obtained from the USGS Earth Explorer portal.
