16 U.S.C. § 1242
National trails system
For purposes of this section, the term “extended trails” means 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. While it is desirable that extended trails be continuous, studies of such trails may conclude that it is feasible to propose one or more trail segments which, in the aggregate, constitute at least one hundred miles in length.
1996—Subsec. (c). Pub. L. 104–333 struck out subsec. (c) which read as follows: “On
1983—Subsec. (a). Pub. L. 98–11, § 203(1), (2), designated existing provisions as subsec. (a), redesignated former subsecs. (a) to (d) as pars. (1) to (4), respectively, and, in provisions preceding par. (1), substituted “shall be composed of the following:” for “shall be composed of—”.
Subsec. (a)(2). Pub. L. 98–11, § 203(3), inserted provision authorizing the location of national scenic trails so as to represent desert, marsh, grassland, mountain, canyon, river, forest, and other areas, as well as landforms which exhibit significant characteristics of the physiographic regions of the Nation.
Subsec. (a)(3). Pub. L. 98–11, § 203(4), (5), substituted “in this chapter are included as Federal” for “in this chapter, are established as initial Federal” in fourth sentence and struck out “subsequently” after “The appropriate Secretary may” in fifth sentence.
Subsecs. (b), (c). Pub. L. 98–11, § 203(6), added subsecs. (b) and (c).
1978—Subsecs. (c), (d). Pub. L. 95–625, § 551(4), (5), added subsec. (c), redesignated former subsec. (c) as (d), and substituted “, national scenic or national historic” for “or national scenic”.