Wind speed in meters per second from the National Renewal Energy Lab. Meridian added by the author.


Center-pivot irrigation in Finney County, Kansas. Photo from nasa.gov


The Great Plains in blue with the 100-degree longitude line. Map from Wikipedia; line drawn by the author.


The mixed grass prairie, center, under the 100th meridian. Map from Wikipedia; line drawn by the author.


The 100th meridian in yellow; rainfall — red; elevation — blue; and grasslands — green. Base map from whatsansweer.com; lines drawn by the author.


The 100th meridian in yellow; rainfall — red; elevation — blue; and grasslands — green. Base map from whatsansweer.com; lines drawn by the author.


Photo of Manhattan by Fabien Bazanegue on Unsplash



The 18 metro areas that had half of US population growth from 2010–2020. Map by the author using pinmaps.net


Downtown Beckley, West Virginia. Photo from wvnstv.com

Jim Fonseca

Geography professor (retired) writes about New England, the Fifty States, politics, urban geography, cultural geography, Portuguese Americans, novels

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