This was my first climb at Protrero. I started right at the concrete column attached to the rock wall. In general, I climbed the left side of the arete for the first half of the climb, and the right side of the arete for the top of the climb. Anchors up on the right.
Location
After the 15 second hike in to the wall, go left about 20 feet or so and you'll see the concrete column with rebar sticking out of it.