The 'Rubies' were named after the garnets found by early explorers. The central core of the range shows extensive evidence of glaciation during recent ice ages, including U-shaped canyons, moraines, hanging valleys, and steeply carved granite mountains, cliffs, and cirques. All of these features can be seen from 12-mile Lamoille Canyon Road, a National Forest Scenic Byway which traverses Lamoille Canyon,[4] entering the range near the town of Lamoille.