Hiked Atlantic Peak and Pacific Peak from the McCullough Gulch trailhead. The headwall at the end of the basin is still snow covered. If you are going to hike in the snow you'll need crampons and ice axe. It is steep. We avoided the snow by going to the climbers right of the snow field. This required some class 3 scrambling but do-able. It was probably 150 ft of snow we needed to get past. In some places I was able to hike between the snow and the rock wall. In other parts we scrambled above the snow.