The Tilted Shamrock
Several reasons...
1.) It looks like a tilted shamrock. (isnt rule #1 alwasy be practical?)
2.) See Rule #1, K.I.S.S. (Keep It Simple, Stupid)
And hey...if you called it the tilted shamrock, the name could evolve into 'the rock' which, if you refer to the nickname of Alcatraz, you can't escape its grasp alive.
Select from the names then...Tilted Shamrock, Twisted Shamrock, The Rock...or as ccvi said..."The Map"