OKLAHOMA LAKES Shell Lake Osage County, OK BE THE FIRST TO WRITE A REVIEW SHARE THIS PAGE Shell Lake is located in Osage County, Oklahoma. This lake is 557 acres in size. BUY A OKLAHOMA FISHING LICENSE. SIZE 557 acres ELEVATION 725 ft POST A FISHING REPORT BAROMETRICPRESSURE WEATHERINFO WIND MAP& FORECAST SUN/MOONINFO