yellowstone river facts Archives - ToursMaps.com ® http://toursmaps.com/tag/yellowstone-river-facts Fri, 24 Jun 2016 12:49:25 +0000 en-US hourly 1 https://wordpress.org/?v=6.0.9 THE VALLEYS OF THE LOWER YELLOWSTONE, LAMAR, AND GARDNER RIVERS http://toursmaps.com/valleys-lower-yellowstone-lamar-gardner-rivers.html http://toursmaps.com/valleys-lower-yellowstone-lamar-gardner-rivers.html#respond Sat, 25 Jun 2016 02:08:00 +0000 http://toursmaps.com/?p=207362 The northern valleys average a little lower and drier than the central plateaus overall, and the high desert ecology along the 5 miles of road between Gardiner and Mammoth is unique in the park, for precipitation there is sometimes as low as 11 inches (28 cm) in a year. In contrast, the Lamar River valley is a little higher and has about 30 inches (76 cm) of precipitation a year. The ecology of these river valleys is also heavily influenced by glacial scouring, which has brought down volcanic and sedimentary soils from surrounding mountains. The soil holds water well and

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