Take Buckhorn Canyon (44H) beyond where Crystal Mtn road comes out. Greer comes out on the first switchback up on this side of Pennock Pass. They are marked with signs heading eastbound. Both are open year around. I can get coordinates if needed, but have to wait until then.
Oh well, I went up Buckhorn Canyon with a friend today and he had never been up there. We did (yes, again) Moody and Crystal instead, since it was closer. The Hell For Stout Springs are getting looser every time out.