Which of the following is an example of a formal region?

A.
The Trinity River watershed

B.
The Great Plains

C.
Hidalgo County

D.
Silicon Valley

1 answer

A formal region is defined by specific characteristics such as political boundaries, physical features, or economic activities. Among the options you provided, C. Hidalgo County is an example of a formal region, as it is defined by a specific political boundary. The other options may represent areas with common characteristics but are not formally defined by political or administrative boundaries.