The files contain the data used to produce the figures in the manuscript "Direct visualization of colloid transport over natural heterogeneous and artificial smooth rock surfaces" by Borgman, Be'er, and Weisbrod. Included in the data set: ImageAnalysesAndPlots.m: A MATLAB script to generate the figures from the included images and data files. myCmap.mat: A custom set of colors for the images. LH_btc.csv, LH_b_btc.csv, HH_btc.csv, HH_b_btc.csv: Data for the breakthrough curves. LH_t=360min.czi, HH_t=300min.czi: Final images from the experiments, from which the residual surface fluorescence is calculated. LHSurfTopo.csv, HHSurfTopo.csv: Tables containing the profilometer scan data. LH, HH: Folders containing the images for the colloid displacement front Exp01-Exp04: Images for calculating the dispersion coefficient PlotVelocities2.m: A script for plotting the calculated velocity fields velocity_magnitude_HH_flux_boundary.txt/velocity_magnitude_LH_flux_boundary.txt: The data files for the velocity fields. For the .czi files, it's necessary to use the Bio-Formats for MATLAB package.