Against the TidesFor four centuries, dykes held back the largest tides in the world, in the Bay of Fundy region of New Brunswick and Nova Scotia. These dykes turned salt marsh into arable land and made farming possible, but by the 1940s they had fallen into disrepair. Against the Tides is the never before told story of the Maritime Marshland Rehabilitation Administration (MMRA), a federal agency created in 1948 to reshape the landscape. Although agency engineers often