Water Level, River Shannon

http://iwn.iwai.ie/v29i3/waterlevel.PDF

http://www.shannonrbd.com/pdf/currentmgtwaterlevelsreport.pdf

http://www.waterwaysireland.org/index.cfm/section/article/page/ShannonNavigationInformation

http://www.carookee.com/forum/Bootsurlaub-Hausboote-IWS-4/53/Athlone_water_levels.28250777.0.01105.html