Friday fold: Big kink fold in Grinnell Formation

Here’s a fun fold – I saw this hiking Siyeh Pass in Glacier National Park earlier this week:

(note the four people for scale in the upper photo – 3/4 of the way up the grassy slope.)

Here’s a closer view, with me for scale:

Happy Friday! I’m leaving Glacier today and beginning the journey home. Happy Trails!

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