Coloma is where the California Gold Rush began. On 24 January 1848, James W. Marshall spotted gold flakes in the tailrace of a sawmill he was building for John Sutter on the American River. Within a year, tens of thousands of prospectors had flooded into California.
Today the town is a quiet stop in the Sierra Nevada foothills, anchored by the Marshall Gold Discovery State Historic Park. The park preserves a replica of Sutter's Mill, a museum with Gold Rush-era exhibits, and the hillside monument marking Marshall's grave. The surrounding stretch of the South Fork American River is the busiest whitewater run in California, with rapids ranging from gentle Class II to more serious Class III.