This is the bolted line between Irie Heights (5.10d) and Sunday Afternoon (5.9), which starts inside a wide chimney and climbs an attractive, brown patina face.
Incut patina edges lead up to the crux, which comes at mid-height where the rock turns tan in color and the holds get less positive. Here you'll be forced to utilize tips friction while you get your feet over a bulge. The climb eases after the crux and is your standard Josh steep slab to the top.
Also the name of an eye-opening book by Marc Reisner about water and the development of the desert southwest