A 240 MW tidal power station was constructed on the river Rance between St Malo and Dinard during 1959–1967. However, although France, in common with many other countries, had published widely in the broad field of tidal power, little publicised information on aspects specific to the Rance scheme prior to its construction can be identified from a detailed library search of the period. Certainly no reports of environmental assessments pertinent to the subject can be found.