Of these, the first-stated two are the main navigations. The Noorddiep has been stopped up at both ends. Another branch, De Garste, had already completely silted up by the middle of the nineteenth century. Until about 1900, the Ganzendiep up to the Goot fork was known as IJssel proper as was the historical main channel. The present main channel was named the Regtediep or Rechterdiep until well into the twentieth century.
Of these the first-stated two are the main navigations The Noorddiep has been stopped up at both ends Another branch De Garste had already completely silted up by the middle of the nineteenth century Until about 1900 the Ganzendiep up to the Goot fork was known as IJssel proper as was the historical main channel The present main channel was named the Regtediep or Rechterdiep until well into the twentieth century