Goosenecks State Park is a state park in the U.S. state of Utah, overlooking a deep meander of the San Juan River. The park is located near the southern border of the state a short distance from Mexican Hat, Utah. Millions of years ago, the Monument Upwarp forced the river to carve incised meanders over 1,000 feet (300 m) deep as the surrounding landscape slowly rose in elevation. Eroded by water, wind, frost, and gravity, this is a classic location for observing incised meanders.