Regional discussion and conditions reports for the Golden State. Please post partners requests and trip plans in the California Climbing Partners forum.
ATT works at least somewhat at many locations on the hotlum--I've called and sent text messages before; not reliably, but I've gotten through. Also I've not tried it above 12k or so. Per Robin's info, verizon should work at least a little, too, but I've never tried verizon.