The October Boulder is in a tight cluster of boulders to the left of Persia and behind/uphill a few meters from Recovery Boulder cluster. This is the boulder behind "Perfecto Boulder"
You will see on the downhill facing side (the face toward Persia) a seam running horizontal across the face. This is the start to "Kettle Cooked". At the back facing the forest away from the trail is the "October Slab".