[en] A bubble chamber-wide-gap optical spark chamber experiment has been performed in order to make use of precision momentum measurements (delta p/p less than 0.25) in studying the π^-p interaction at 100 GeV/c. These measurements were used to study phenomenological characteristics of and resonance production in the π^-p interaction. Peyrou plots and single particle inclusive distributions in rapidity, Feynman x, and transverse momentum for π⁺, π^-, and p production were used to point out the incident particle and leading proton effects. Factorization of the differential cross section was tested, indicating a slight preference for the variables (rapidity, transverse momentum). Two-particle rapidity correlations as a function of rapidity gap for like and unlike charge pion pairs were investigated inclusively, where short range correlation behavior was noted, and semi-inclusively, where a suggestion that clusters may consist of one positive particle and one negative particle was seen. A search for the production of known resonances was conducted in the following effective mass distributions: (pπ^+-), (π⁺π^-), (π⁺π^-π^+-), (π⁺π^-π⁺π^-), (K^+-π^-+), and (K⁺K^-). The Δ⁺⁺ (1236) was seen in the (pπ⁺) channel, and substantial rho⁰ (770) was seen in the (π⁺π^-) spectrum. Differential cross sections in center of mass rapidity and transverse momentum for the rho⁰ indicated the dominance of production in the central and forward rapidity regions and production comparable to that for pions at p²/sub T/ greater than 0.5 (GeV/c)². No other resonances were observed