Chief Mountain, NINA-STA-QUAY, has alway been known to the Blackfeet people. Identified on maps as King Mountain as early as 1796, this outstanding landmark has long been revered for its supernatural powers. Generations of Blackfeet have used Chief Mountain for fasting and prayer. In 1992, the Blackfeet Tribe, by Tribal Resolution limited public access into the area.

The ancient Old North Trail, well worn by centuries of Indian travois, entered the United States from the north, a few miles west of present day Port of Piegon Customs. It ran along the east slope of the Rocky Mountains for Edmonton, Alberta, to at least as far as Helena, Montana. Perhaps one of the greatest migration routes of early man, the Trail more recently served the Northwest Plains Indians as the route for war parties and exchanging goods between Canada and the United States. The Museum of the Plains Indian in Browning relates the story of the Plains Indian culture including native travel patterns from earliest times to the present.

Erected by Montana Department of Transportation.

Lewis noted "an Indian road enters the mountain at the same place with the river... and continues along it's border under the steep cliff."

The Indian road Lewis mentioned follows the Hardy Creek drainage to the north. It was an important route for Indians seeking buffalo and other plains animals.

Roads like this were part of a network of trails that made up a transcontinental route called the Old North Trail which extended along the Rocky Mountains from Canada to Mexico, it is one of North America's oldest roadways and has been in use for over 12,000 years. It started as a footpath then evolved into a dog travois path, a horse travois path, wagon trail, and in some places gravel roads and paved highway. It was in continuous use until the automobile became common and the roads moved farther east on the flat country.

Erected by Portage Route Chapter, Lewis & Clark Trail Heritage Foundation (LCTHF).