The included dataset includes the raw polygon shapefiles of the outlines for chaos blocks on Europa in the lower half of the RegMap images. The outlines were generated using the standard definitions of blocks and further subdivision in morphology of plates and knobs based on those previously published by Leonard et al. (2022) in which the author of this dataset is the same that created the majority of the Leonard et al. (2022) dataset. Images used to generate the outlines were the RegMap images within the Photogrammetrically Controlled Galileo Image Mosaics of Europa, produced by the USGS Astrogeology (Bland et al., 2021). The shapefiles do not include the entire metadata and will be uploaded at a later date, but information about chaos block morphology, area in sq km, lon/lat location of center, and chaos terrain location are included. Also included within this dataset are the Geojson files (produced by Marina Dunn) that complement the ArcMap shapefiles, so they could be implemented into other programs more easily. Both datasets have yet to be peer reviewed. References Leonard, E.J., Howel, S.M., Mills, A., Senske, D.A., Patthoff, D.A., Hay, H.C.F.C., and Pappalardo, R.T. (2022). Finding Order in Chaos: Quantitive Predictors of Chaos Terrain Morphology on Europa, Volume 49, Issue 8, doi: 10.1029/2021GL097309. Bland, Michael T., Weller, Lynn A., Archinal, Brent A., Smith, Ethan, Wheeler, Benjamin H. (2021). Improving the Usability of Galileo and Voyager Images of Jupiter's Moon Europa, Earth and Space Science, Volume 8, Issue 12, doi: 10.1029/2021EA001935.