  The number and density of schools in the Seattle area is convenient for the
study of distributed particle showers produced at the top of the atmosphere by
ultra-high energy (about $10^{20}$ eV) cosmic rays. We are forming a
collaboration for the development of a distributed detector network to study
air showers from such ultra-high energy cosmic rays. We call the cosmic ray
measurement component WALTA (WAshington Large-area Time-coincidence Array).
WALTA aims to provide teachers and students the opportunity to become active
participants in forefront scientific projects. A cornerstone of the program
will be to install a measurement module at each participating school.
