RedactedNarrative: On June 29, 2019 at around 1900 hours on the Missouri river near Great Falls, Montana, the operator was cruising on a stand up jet ski when he got to close to an island in the river and struck a sand bar. He was ejected from the jet ski and broke his ankle. He was screaming in pain and a nearby home owner from the shore called 911. Another waverunner rode by and stopped to help until the Cascade Co. search and rescue could get there with their jet boat with paramedics and fire on board to help. The operator only recieved injuries to his ankle, but the injuries did require surgery. The jet ski recieved no damage and no other people or property were injured or damaged. End of report.