X-Nico

100th meridian

100th meridian west, a line of longitude west of the Greenwich Meridian

At the Hundredth Meridian

The song is a reference to the 100th meridian west, which is a line of longitude that separates much of Western Canada from the Central and Atlantic regions of Canada and is where the Great Plains begin, as lead-singer Gordon Downie states in the song.

Eastern Wilderness Act

While the previous Act created the legal definition of wilderness in the United States, the Eastern Wilderness Areas Act only applied to land east of the 100th meridian.

see also