This paper describes the design and implementation of the Distributed Array Query and Visualization (DAQV) system for High Performance Fortran, a project sponsored by the Parallel Tools Consortium. DAQV's implementation leverages the HPF language, compiler, and runtime system to address the general problem of providing high-level access to distributed data structures. DAQV supports a framework in which visualization and analysis clients connect to a distributed array server (i.e., the HPF application with DAQV con­trol) for program-level access to array values. Implementing key components of DAQV in HPF itself has led to a robust and portable solution in which clients do not need to know how the data is distributed.