i climbed adams yesterday (7/17/02) and when i walked from the mining shack along the ridge to the other side i found the only windblock area of some stones. when i sat down a football size rock slid away revealing a fresh mound of human feces. i then realized i was in the center of a huge toilet with tp and crap EVERYWHERE!!! look, i have had to use the wilderness as toilet because of my lack of foersight- totally irresponsible- but i was as responsible as i could get. and you NEVER leave tp. wrap it and pack it. i carried out a whole bag of other peoples crappy toilet paper i collected from the summit.
whoever has participated in filling my bag should be absolutely ashamed of themselves. bury it deep in the snow- but never just crap in such a busy area, drop a rock on it and be on your merry way. this may work in the untraveled wilderness- but NOT on the summit of mt adams.
According to http://www.fs.fed.us/gpnf/recreation/mount-adams/cascade-volcano-pass.shtml the Cascade Volcano Pass is only required June 1 to September 30
Beginning May 2016 the Cascade Volcano Pass will be required May 1st through September 30th http://www.fs.usda.gov/detail/giffordpinchot/passes-permits/?cid=stelprdb5144542
If you arrive from the East (via Goldendale) you will not pass the ranger station. There is no self-purchase permit system in place on the mountain, so unless you detour to the ranger station you will have to park illegally & climb without paying the permit. No idea why the park rangers can't just have a box at Cold Springs where you can drop in an envelope with your fees.