Final answer:
Heading south from the White Rock River, major waterways such as the Missouri River and the Smoky Hill River might be encountered. The exact route would depend on the specific location of the White Rock River.
Step-by-step explanation:
To check the waterways and lakes you would encounter while heading in a southerly direction from the White Rock River, you would likely encounter certain key bodies of water and landmarks.
Among the options provided:
- Missouri River
- Smoky Hill River
- Medicine Lodge River
The White Rock River itself is not a well-known river, and without specific geographic details, it is challenging to offer a definitive path.
However, based on the general information given, the Missouri River is a major southward-flowing river that eventually leads into the Mississippi River and could be encountered if the White Rock River is within its watershed.
Similarly, the Smoky Hill River is found in the central United States and could also be encountered depending on the White Rock River's location.
The Medicine Lodge River may also be a candidate, although it is less likely unless the White Rock River is in proximity to it.