Rosamond

I used to guide on Shasta, and the sulfur gas vents just below the summit would occasionally be spewing enough Hydrogen Sulfide that one of my students would barf when walking by them. Hydogen sulfide is a well documented toxic gas that shuts down your cells' ability to transport oxygen through the mitochondria, and can produce pulmonary and cerebral edema, which can easily be confused with HAPE or HACE, when in fact it's due to breathing this toxic gas. I'm interested in taking field measurements of as many H2S vents on higher parts of the major cascade volcanoes as I have time to get to next summer. Because most of the cascade climbing I've done has been on Shasta, I'm looking for info on where exactly on which mountains you guys have smelled that rotten egg hydrogen sulfide smell. Except for in the tent when your partner ate too much taco bell. I know about that location already, and we all know it's a highly toxic gaseous substance. Thanks in advance.