STEAMBOAT SPRINGS (AP) – A skier died at Steamboat after falling into a tree well. 53-year-old Frank Maimone of Philadelphia was found on an expert ski trail Saturday afternoon. Routt County Coroner Rob Ryg says Maimone died at the UCHealth Yampa Valley Medical Center in Steamboat Springs. The Steamboat Ski Patrol performed CPR throughout Maimone’s transport from the resort to the hospital. The coroner says there was no visible trauma but a cause of death had yet to be determined. An autopsy report was expected to be released Monday.