Data used in the manuscript "Investigating the Origin and Dynamics of Carolina Bays". Aqudopp: contains raw ADCP data for each deployment. Carolina Bay Detections: contains shapefiles for the detections obtained with the detector developed in Lundine and Trembanis 2021. Detection Maps: contains several maps used to visualize the detections and spatial statistics. ElevationProfilesForPreviousStudies: contains elevation profiles from National Map data used in construction of the figures illustrating previous sediment coring work in Carolina Bays. HumminbirdSidescanTonysPond: contains the raw sidescan data collected at Tonys Pond, Assawoman Wildlife Area, Delaware. Maps contains two folders CarolinaBays_and_Similar_Features: contains maps made with National Map data and satellite imagery of similar features to Carolina Bays around the world. CarolinaBays_NorthAmerica_Geology: contains maps of Carolina Bays (Lundine and Trembanis, 2021), Great Plains Playas (Playa Lakes Joint Venture, 2022), INQUA OSL dates (Lancaster et al., 2016), Last Glacial Maximum Ice Extent (Batchelor et al., 2019), Last Glacial Maximum permafrost extent (Lindgren et al., 2016), contiguous USA surficial geology (Horton et al., 2017). PreviouslyPublishedGeochron: contains OSL and radiocarbon dates from North American dunes and Carolina Bays from previous studies (see the in-prep manuscript for references). Sedimentology: contains all of the sediment sample and vibracore logs collected at various Delmarva Bays and Tonys Pond. subbottomTonysPond: contains the raw data for the sub-bottom profiles collected at Tonys Pond. Waves: contains the raw data from the Spotter wave buoy deployments at Tonys Pond. WeatherData: contains weather data compiled from the DEOS Bethany Beach station.