 The highly rounded nature of the blocks forming the Bimini Road indicates that a significant thickness of their original surface has been removed by biological, physical, and chemical processes.Given the degree to which these blocks have been eroded, it is highly implausible that any original surface features, including any tool marks and inscriptions, would have survived this degree of erosion.After a very detailed examination of the Bimini Road and the other linear features, Gifford and Ball made the following observations