Final answer:
Dare's Gift is the river that runs a few miles south of Mason, Texas.
Step-by-step explanation:
The river that runs a few miles south of Mason, Texas is Dare's Gift.
According to the reference, it is mentioned that the river is about five miles away from where the conversation is taking place, by the river. The river is also referred to as a stream in the text.
This information implies that the river mentioned is a geographical feature and falls under the subject of Geography.