In February 2013, a couple from Northern California made an incredible discovery on their land while walking their dog near the Sierra Nevada foothills. They found eight old, rusty metal cans buried under a tree. Inside those cans were 1,427 gold coins, dating from 1847 to 1894, all in excellent, uncirculated condition. This treasure, called the Saddle Ridge Hoard, is the largest known collection of buried gold coins ever found in the United States. The coins’ face value was about $27,000, but because they were so rare and well-preserved, their market value was estimated to be around $10 million. The couple decided to stay anonymous and later sold the coins with the help of a coin expert company called Kagin’s Inc. The original owner of the coins is still a mystery, and many ideas exist about why and how the coins were buried there. This find remains one of the most fascinating treasures in modern history.