how does granite turn to mud
I think you have that backward. Granite does not turn to mud.
http://www.lasplash.com/publish/Pets_198/The_Boneyard_-_Culver_City_s_Off-Leash_Dog_Park.php
http://www.lasplash.com/publish/Pets_198/The_Boneyard_-_Culver_City_s_Off-Leash_Dog_Park.php