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Sacagawea Ridge

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Journal Article
Journal: GSA Bulletin
Published: 01 August 1999
GSA Bulletin (1999) 111 (8): 1233–1249.
... greater significance is as the type section or a reference section for the deposits of three pre–Bull Lake glaciations: Washakie Point (oldest), Cedar Ridge, and Sacagawea Ridge (reference section, type section at Dinwoody Lakes). However, after reexamining the tills, lake sediments, and buried soils...
Journal Article
Journal: GSA Bulletin
Published: 01 November 1997
GSA Bulletin (1997) 109 (11): 1443–1452.
..., and tephrochronology, we place the age of Sacagawea Ridge moraines in the Dinwoody Lakes type area at about 660 ka. Outwash and river terrace deposits in the Bull Lake type area, previously considered to be Sacagawea Ridge, are actually older by one or two glacial cycles. In the Bull Lake type locality, 15 individual...
Journal Article
Journal: GSA Bulletin
Published: 01 December 1979
GSA Bulletin (1979) 90 (12): 1153–1164.
... and qualitative consideration of deposit morphology, downvalley position, and soil-profile development. Two pre–Bull Lake(?) glaciations are recognized in the area and tentatively correlated with the Cedar Ridge and Sacagawea Ridge Glaciations described by Richmond (1960, 1962, 1965) in the Rocky Mountains. Early...
Journal Article
Journal: GSA Bulletin
Published: 01 July 2005
GSA Bulletin (2005) 117 (7-8): 1108–1120.
... moraine segment (Sacagawea Ridge) was dated as well and consistently yielded the oldest ages in the data set ( Phillips et al., 1997 ). Overall, the Wind River Range data, along with our data, particularly from the YTU, suggest that while scattered, CE ages on pre–late Wisconsin moraines generally provide...
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Journal Article
Journal: Geosphere
Published: 01 August 2012
Geosphere (2012) 8 (4): 835–853.
... in age because of moraine crest erosion exposing previously buried clasts ( Putkonen and Swanson, 2003 ; Heyman et al., 2011 ). Easterbrook et al. (2003; p. 49–56) demonstrated that the highest boulders above a Sacagawea Ridge–age (pre–Bull Lake–age; ∼350–610 ka) moraine yielded the oldest cosmogenic...
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Series: GSA Field Guide
Published: 01 January 2005
DOI: 10.1130/2005.fld006(03)
EISBN: 9780813756066
... modern grade ( Laabs and Carson, 2005 ). The age of this episode is poorly known, but may correlate to the Sacagawea Ridge glacia-tion believed to be correlative to marine oxygen-isotope stage 16 ( Chadwick et al., 1997 ). Turn around and drive south-southeast to the fork encountered earlier. At mile...
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