  We construct a partial compactification of the moduli space, M_k, of SU(2)
magnetic monopoles on R^3, wherein monopoles of charge k decompose into widely
separated 'monopole clusters' of lower charge going off to infinity at
comparable rates. The hyperKahler metric on M_k has a complete asymptotic
expansion up to the boundary, the leading term of which generalizes the
asymptotic metric discovered by Bielawski, Gibbons and Manton in the case that
each lower charge is 1.
