Its length, from Cape Gracias a Dios to the San Juan delta, is nearly 300 m.
This caused great dissatisfaction among the Indians, who shortly afterwards revolted; and on the 28th of January 1860 Great Britain and Nicaragua concluded the treaty of Managua, which transferred to Nicaragua the suzerainty over the entire Caribbean coast from Cape Gracias a Dios to Greytown, but granted autonomy to the Indians in the more limited Mosquito Reserve (the area described above).
In addition to the three names of Segovia, Coco or Cocos, and Wanks, which are applicable to the whole river, different parts have from time to time received the names of Cabullal, Cabrugal, Cape River, Encuentro, Gracias, Herbias, Oro, Pantasma, Portillo Liso, Tapacac, Telpaneca, Somoro, Yankes, Yare and Yoro.