Ronald Scott Gray, 62, a retired Marine and former Massachusetts State Police captain from North Brookfield, Massachusetts, disappeared on September 19, 2008, while elk hunting in the Nez Perce National Forest in Idaho. He had gone on an extended hunting trip with friends and was last seen in Idaho County when he chose to stay behind and continue hunting for a few more days. He was due to meet his outfitter on September 23 at a designated spot but never arrived; his companions waited three days before reporting him missing.

An extensive search followed, including helicopters, local law enforcement, and volunteers. Searchers recovered some of his personal items, notably a backpack found near Highline Lake, and investigated the possibility he went fishing in nearby Jim Creek, but no trace of Gray himself was located. He was reported to be familiar with the terrain and in good health before he disappeared. His case remains unsolved.

If anyone was in the Nez Perce National Forest around September 19–23, 2008, or has information about Highline Lake or Jim Creek during that period, please share what was seen or heard.