Answer:
Metes and Bounds System
Explanation:
Metes and Bounds are a system used for describing land which are old. It is a method or system of describing real property or land or real estates.
Metes means a boundary which is defined by a measurement of each of the straight run which is specified by the distance between terminal points and direction or orientation.
They are boundaries that are identified by some natural landmarks such as man made structures or lakes, rivers or roads, etc.
In the context, Merle has metes and bound type of real property which has a pair of trees that are 100 years old. It also contains a stream in the property.