By: magic-gigapans
Image: Callan Bentley, Mid-Atlantic Geo-Image Collection
License: Creative Commons Non Commercial ⧉

Uploaded: 29 Apr 2020
Last Updated: 18 May 2020

2.35 gigapixels
107,540 x 21,848 pixels
358.5 in X 72.8 in at 300dpi

The Madison River has incised downward into the northwestern portion of the Madison Range, a Laramide uplift bounded by Basin-and-Range normal faults. Here, the superposition of the river has revealed gorgeous outcrops of Archean basement complex (Wyoming Terrane or Wyoming Craton). Granites, gneisses, and amphibolites dominate. The river is popular with fly fishermen and inner tubers.