Iron County is a county located in the Lead Belt region in the U.S. state of Missouri. As of the 2020 census, the population was 9,537. The largest city and county seat is Ironton. Iron County was officially organized on February 17, 1857, and was named after the abundance of iron ore found within its borders.
The Big River is a tributary of the Meramec River in east-central Missouri. The river rises in western Iron County near the summit of Johnson Mountain just north of Missouri Route 32 and approximately 3.5 miles southeast of the community of Enough. It flows through Washington, Saint Francois, and Jefferson counties. It forms part of the boundary between Jefferson and Saint Francois counties and also part of the boundary between Jefferson and Washington counties. It empties into the Meramec River opposite Eureka where the Meramec forms the border between Jefferson and Saint Louis counties. The river flows through Washington State Park, St. Francois State Park, and the Lead Belt mining district. The elevation of the river at its source is approximately 1,300 feet (400 m) above sea level and at its mouth about 400 feet (120 m). The length of the river is approximately 145 miles (233 km), while the airline distance between source and mouth is about 56 miles (90 km). Its watershed area is 955 square miles (2,470 km2).
Wildcat Mountain is a summit in Iron County, Missouri, located 1.4 miles (2.3 km) west of Taum Sauk Mountain, Missouri's highest peak. Wildcat Mountain's summit elevation is only about two feet less than that of Taum Sauk Mountain.
Abbott Branch is a stream in northern Iron County, Missouri. It is a tributary of Courtois Creek.
Brown Mountain is a summit in Iron County in the U.S. state of Missouri. The peak is at an elevation of 1,388 feet (423 m).
Buck Mountain is a summit in Iron County in the U.S. state of Missouri. The summit has an elevation of 1,624 feet (495 m).
Claybaugh Creek is a stream in the Saint Francois Mountains of Iron County in the U.S. state of Missouri.
Good Water is an unincorporated community in northwest Iron County, in the U.S. state of Missouri.
Graniteville is an unincorporated community in northeast Iron County, in the U.S. state of Missouri. The community is located on Missouri Route 21 approximately three-quarters of a mile east of Elephant Rocks State Park. Pilot Knob is about three miles to the southeast.
Hogan Mountain is a summit in Iron County in the U.S. state of Missouri. Hogan Mountain lies just north of Carver Creek and Missouri Route AA on the south and west. Big Creek and Missouri Route 72 lie to the east with the community of Hogan to the southeast.
Ketcherside Mountain is a summit in Iron County in the U.S. state of Missouri. The peak lies about 4+1⁄2 miles (7 km) southeast of Taum Sauk Mountain and about 6+1⁄2 miles (10 km) south-southwest of Ironton. Hogan and Hogan Mountain lie to the west-southwest.
Knob Creek is a stream in Iron and St. Francois counties in the U.S. state of Missouri. It is a tributary of Stouts Creek.
Russell Mountain is a summit in Iron County in the U.S. state of Missouri. The mountain lies just east of Taum Sauk Mountain and Missouri Route CC provides access to the two peaks from combined Missouri routes 21 and 72 to the east. The town of Ironton is about six miles to the northeast. The Tom Sauk Trail traverses the Russell Mountain ridge.
Shepherd Mountain is a summit in Iron County in the U.S. state of Missouri. Shepherd Mountain lies just west of Ironton and Stouts Creek in the Arcadia Valley.
Shut-in Creek is a stream in Iron and Reynolds Counties in the U.S. state of Missouri. It is a tributary of Imboden Fork.
Vail Mountain is a summit in Iron County in the U.S. state of Missouri. The summit has an elevation of 1,404 feet (428 m). Vail Mountain lies to the east of Russell Mountain and the road to the summit of Taum Sauk Mountain passes just west of the summit of Vail Mountain. Routes 21 and 72 traverse the south spur of the mountain before heading south through Royal Gorge. The summit is about 3 miles (4.8 km) southwest of Arcadia and Ironton.
Leatherwood Creek is a stream in Iron and Madison County in the U.S. state of Missouri. It is a tributary of St. Francis River.
Buck Mountain is a summit in southern St. Francois County in the U.S. state of Missouri. Buck Mountain has an elevation of 1,529 feet (466 m). The mountain lies east of Missouri Route V about six miles northeast of Pilot Knob and about six miles southwest of Doe Run.
Indian Creek is a stream in St. Francois County in the U.S. state of Missouri. It is a tributary of the St. Francis River.
Pine Mountain is a summit in St. Francois County in the U.S. state of Missouri. The summit has an elevation of 1,499 feet (457 m). The mountain is about 3.5 miles south of Bismarck along Missouri Route N. The peak rises just south of the confluence of Indian Creek with the St. Francis River.
