CEACT/SevenC's digital chart software displays latest USACE additional rock pinnacles data in the Upper Mississippi. Due to the historical lowest water level USACE has issued additional rock pinnacles data for different water levels in order to continue shipping on the Upper Mississippi, allowing river pilots to navigate safely through dangerous zones. The âdanger zonesâ are presented in red color highlights without cluttering or hiding information on the charts. Since it was launched ten years ago, CEACT® has become the preferred Inland ECDIS / Chart System for leading barge companies such as AEP, Ingram Marine and many others.
