### Question
Can you define what extended trails means?


### Answer
**Extended trails** is defined as the following in *16 U.S.C. § 1242*:

> trails or trail segments which total at least one hundred miles in length, except that historic trails of less than one hundred miles may be designated as extended trails

#### Citation:
  - *16 U.S.C. § 1242*
  - Heading: **CHAPTER 27-NATIONAL TRAILS SYSTEM**

