Geo-challenge: Two Landforms, One River

What are these landforms and where?  Which river is “involved” in both?  You can respond via Comments below.  In a few days I’ll post answers in a Comment and tweet.
I think (and hope!) this geo-challenge will be easier than the last one, which featured the escarpment side of Comb Ridge.  The dip-slope side, with outcrops of Navajo sandstone, is the more familiar view.  More explanation here.