Editing Bitterroot Range (section)

=== Centennial Mountains ===
{{main article|Centennial Mountains}}
The '''Centennial Mountains''' encompass an area of <span style="white-space:nowrap">2,064&nbsp;square miles&nbsp;(5,346&nbsp;km<sup>2</sup>)</span>.<ref>{{cite peakbagger|rid=14315|name=Centennial Mountains|access-date=2011-08-08}} Retrieved 4 March 2007.</ref>

The Centennials are home to [[Brower's Spring]], discovered in 1888 by [[Jacob V. Brower]], which is believed to be the furthest point on the [[Missouri River]]. Brower published his finding in 1896 in "The Missouri: Its Utmost Source."

The site of Brower's Spring is at about <span style="white-space:nowrap">8,800&nbsp;feet&nbsp;(2,680&nbsp;m)</span> in elevation in the Centennials. The site is now commemorated by a rock cairn at the source of Hellroaring Creek, which flows into the [[Red Rock River (Montana)|Red Rock River]] and then into [[Clark canyon reservoir]], where it joins the [[Beaverhead River]] and then the [[Big Hole River]], before ultimately joining with the [[Jefferson River]].<ref>{{Cite web|url=http://fwp.mt.gov/mtoutdoors/HTML/articles/2005/MissouriSource.htm|title=The True Utmost Reaches of the Missouri - Montana Outdoors - July-August 2005|access-date=2007-04-13|archive-date=2012-01-18|archive-url=https://web.archive.org/web/20120118010715/http://fwp.mt.gov/mtoutdoors/HTML/articles/2005/MissouriSource.htm|url-status=dead}}</ref>