  We examine the prospects for supersymmetry discovery in the minimal
supergravity (mSUGRA) model via indirect detection of neutralino dark matter.
We investigate rates for muon detection in neutrino telescopes, and detection
of photons, positrons and anti-protons by balloon and space based experiments.
We compare the discovery reach in these channels with the reach for direct
detection of dark matter, and also with the reach of collider experiments such
as Fermilab Tevatron, CERN LHC and a $\sqrt{s}=0.5-1$ TeV linear $e^+e^-$
collider. We pay particular attention to regions of model parameter space in
accord with recent WMAP results on the dark matter density of the universe. We
find that the IceCube neutrino telescope as well as 3rd generation direct dark
matter detection experiments should be able to cover the {\it entire} WMAP
allowed portion of the hyperbolic branch/focus point (HB/FP) region of
parameter space. This is in contrast to the case of the CERN LHC or a linear
$e^+e^-$ collider, where only a fraction of the HB/FP region can be accessed.
In addition, we show that detection of $\gamma$s, $e^+$s and $\bar{p}$s should
occur in much of the HB/FP region, as well as in the low $m_{1/2}$ portion of
the $A$ annihilation funnel, and will be complementary to searches via
colliders in these regions.
