A complete list of USGS summits was obtained from John Kirk (ListsofJohn.com) in the spring of 2011. Duplicate summits between WØ Regions and summits failing prominence were removed based on the USGS data. North Dakota and South Dakota were added to WØ as new Regions. All this resulted in an updated WØ ARM and summit list as of August 1st, 2011.
Tweaks and adjustments
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