### Question
How does the law define public lands highways?


### Answer
Under *23 U.S.C. § 101*, **public lands highways** is defined as:

> those main highways through unappropriated or unreserved public lands, nontaxable Indian lands, or other Federal reservations, which are on the Federal-aid systems

#### Citation:
  - *23 U.S.C. § 101*
  - Heading: **CHAPTER 1-FEDERAL-AID HIGHWAYS > SUBCHAPTER I-GENERAL PROVISIONS**

