  A wide range of techniques have been developed to search for particle dark
matter, including direct detection, indirect detection, and collider searches.
The prospects for the detection of neutralino dark matter is quite promising
for each of these three very different methods. Looking ahead to a time in
which these techniques have successfully detected neutralino dark matter, we
explore the ability of these observations to determine the parameters of
supersymmetry. In particular, we focus on the ability of direct and indirect
detection techniques to measure the parameters $\mu$ and $m_A$. We find that
$\mu$ can be much more tightly constrained if astrophysical measurements are
considered than by LHC data alone. In supersymmetric models within the
$A$-funnel region of parameter space, we find that astrophysical measurements
can determine $m_A$ to roughly $\pm100$ GeV precision.
