[en] The fragmentation region is generally defined as the rapidity range where most of the valence partons of the incoming hadrons (or nuclei) are found after normal inelastic interactions. The disadvantages of the existing intersection region for fragmentation region studies are discussed and a slightly modified design is proposed which allows study of the fragmentation region. The considerations which led to the design of a spectrometer magnet are then outlined and some approaches to specific experiments are detailed. 4 refs., 6 figs., 2 tabs