Eureka is located in MO at coordinates 38.5056°N, 90.5915°W. Water level data is provided by US Army Corps of Engineers. The latest reading is 406.68 ft.
A small badge a marina, lake association or guide can paste on their site. It always includes a link back to Eureka on LakeLevels — that is the entire point.
Recommended — places a real link on the host page.