After the turn you will be transitioning from an alluvium fan deposit (Qaf) to glacial lake deposits (Qglr).
Qglr: Recessional glaciolacustrine (glacial lake) deposits—Silt and clayey or sandy silt to silty sand, typically with scattered dropstones; soft; light brown-gray to gray; deposited in proglacial lakes.
The rain came down, the streams rose, and the winds blew and beat against that house; yet it did not fall, because it had its foundation on the rock. Matthew 7:25 NIV