St. Ambrose University 1 article published in JoVE Engineering Visualizing Hyporheic Flow Through Bedforms Using Dye Experiments and Simulation Susa H. Stonedahl1, Kevin R. Roche2, Forrest Stonedahl3, Aaron I. Packman2 1Engineering and Physical Science, St. Ambrose University, 2Civil and Environmental Engineering, Northwestern University, 3Mathematics and Computer Science, Augustana College This manuscript describes how to create regular bedforms in a flume, visualize flow through the bedforms, and use computer simulations to simulate the hyporheic flow. The computer simulations compare well with the experimental observations. This coupled simulation and experiment is well-suited for both research and educational purposes.