  We consider the collider phenomenology of split-supersymmetry models. Despite
the challenging nature of the signals in these models the long-lived gluino can
be discovered with masses above 2 TeV at the LHC. At a future linear collider
we will be able to observe the renormalization group effects from split
supersymmetry on the chargino/neutralino mixing parameters, using measurements
of the neutralino and chargino masses and cross sections. This indirect
determination of chargino/neutralino anomalous Yukawa couplings is an important
check for supersymmetric models in general.
