Either the USGS maps are labelled wrong or your directions are totally screwed up. No mention of the White Salmon Glacier? Winnies Slide is shown on the north face on USGS maps, but on route according to the Beckey guide. A good page would clarify these details.
The USGS Maps are wrong about location of the Fisher Chimney, Winnies Slide and Hell's highway.
The label for Fisher Chimney is well to the West of where it actually is, the Winnies slide is labeled in the location of the Hanging glacier, and the Hell's Highway is mislabeled the Hourglass (The Hourglass is more to the North somewhere in the cliff band). Hope this helps future climbers.