So I'm trying to find some solid beta on climbing Serpent's Head (10 pitch WI 3) on El Pico de Orizaba. I've seen Secor's Mexico's Volcanoes 2nd ed published by the mountaineers...but it seems pretty vague to me, and internet searches come up, more or less, empty as well.
Also, any idea where to find good topos for Orizaba and environs in the US?
Many Thanks
UnkleHuck