Editing Callao, Missouri (section)

==Geography==
Callao is in southwestern Macon County. [[U.S. Route 36]] passes just south of the city limits, leading east {{convert|8|mi|0}} to [[Macon, Missouri|Macon]], the [[county seat]], and west {{convert|25|mi}} to [[Brookfield, Missouri|Brookfield]]. [[Missouri Route 3]] passes through the center of Callao as Chestnut Street, leading north {{convert|33|mi}} to [[Kirksville, Missouri|Kirksville]] and south {{convert|24|mi}} to [[Clifton Hill, Missouri|Clifton Hill]].

According to the [[U.S. Census Bureau]], Callao has a total area of {{convert|0.52|sqmi|sqkm|2}}, all land.<ref name="CenPopGazetteer2023"/> The city drains east to the Middle Fork of the [[Little Chariton River]] and to the west to Stinking Creek, a tributary of the Middle Fork. Via the Little Chariton River, Callao is within the watershed of the [[Missouri River]].