Stone tool artifacts dating back 9,000 years have been discovered in Lake Huron, but experts have determined they didn't come from around the corner.

The findings note the two stone tools are made from obsidian, originating in modern-day central Oregon.

'In this case, these tiny obsidian artifacts reveal social connections across North America 9,000 years ago,' UT Arlington assistant professor and study co-author Ashley Lemke in a statement.

Stone tool artifacts dating back 9,000 years were discovered in Lake Huron. They originated in a quarry more than 2,000 miles away in modern-day central Oregon

The two stone tools are made from obsidian, originating in modern-day central Oregon

The scientists are not sure how the obsidian glass traveled so far from its origin, but it could be due to 'biface refurbishment,' essentially altering the tools to make them more useful