Once we reached the Ukiah turn-off, we headed west towards Heppner on US Forest Road 53 on the Blue Mt. Scenic Highway. This stretch of road goes over the Blue Mt. Anticline, and a paper by Edwin Shorey (1976, Geology of Part of Morrow County, Northeast Oregon, Masters Degree Thesis, Oregon State University) suggested that you could map the outcrops over the anticline showing the progression to older units and then back again.
I had been a little worried about this stretch because it is unmaintained in the winter, and it had been drizzling/raining lower down, but the sun came out and it was mostly a nice drive with just a little snow on the road at the summit.
As we proceded on towards the axis of the anticline we came into the Herren Formation. The Herren Formation is interpreted on Birch Creek as being Fluvial sequences of arkose, mudstone, and shale with Leaf Fossils that indicate an early Eocene age. The Herren Formation also has localized coal seams that give the area its name "Coalmine Hill". We spent some time looking for leaf fossils but did not find any.
Our last stop was back in the CRB's looking at columns again. These colums were smaller, but not vertical. At this location we saw columns oriented in all directions with some dipping as much as 50 degrees.