I spent July climbing around Chamonix, when it wasn't raining. During the extensive bad weather I entered the GPS co-ords for every hut and bivouac I could get details on into the receiver I had been given (and still had time to read a Thomas Pynchon novel). If anyone would like a copy of the gpx file with the waypoints to save them the boring task of entering them manually PM me with your email address.
There are over forty such waypoints in the file.
Insert dense and obtuse disclaimer riddled with legalese about not being responsible for errors, etc etc.