Create citation file
lawinslow opened this issue · comments
Cite NHD and hydroLakes. Will add package citation when we get to that point.
hydroLAKES: https://www.nature.com/articles/ncomms13603?WT.feed_name=subjects_earth-and-environmental-sciences
NHD: Simley, J. & Carswell, J. The national map- hydrography: U.S. Geological Survey Fact Sheet 2009-3054 (2009)