| Route 138 | ||||
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| Route information | ||||
| Maintained by MoDOT | ||||
| Length: | 2 mi (3 km) | |||
| Major junctions | ||||
| East end: | Route 45/273 north of Iatan | |||
| West end: | Lakeshore Drive in Lewis and Clark State Park | |||
| Highway system | ||||
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Missouri Highways
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Missouri Route 138 is a short highway (about two miles) in southern Buchanan County, Missouri, USA. Its eastern terminus is at Route 45/Route 273 north of Iatan. Its western terminus is in Lewis and Clark State Park. There are no towns on the highway.