Jumbo Mine Trail

From the Kennecott Visitor Center, walk through Kennecott Mill Town toward the Root Glacier Trail. After about half a mile, take the signed Jumbo Mine split to the right and climb the steep road. Follow the signed route toward the Jumbo transfer station and mine, crossing Bonanza Creek along the way; flow is highest in early summer and may mean wet feet. Continue past the transfer station toward the mine, crossing the headwaters of Jumbo Creek, which may be dry later in summer.

The trail narrows through rocky and sandy terrain. During the final half mile, it fades into a scree slope and remnants of an old mine road. Follow the tram-cable towers and the lighter limestone slope toward the mine bowl, then explore the historic site only from safe ground.

The route delivers broad views over the Kennicott Valley and Root Glacier, with the Chugach Range and Castle Mountain filling the horizon. The destination is a dramatic field of Jumbo Mine buildings, tools, and other mining artifacts on a moving rock-glacier setting.

Jumbo Mine was one of the original Kennecott copper claims and operated until 1938. Its historic structures and artifacts are protected as part of the Kennecott mining landscape; leave everything in place.

• Wear sturdy footwear and consider trekking poles for steep, loose terrain and creek crossings.
• Carry layers, food, and water for a full-day outing.
• The route becomes indistinct near the mine; use the signed route, tram-cable towers, and terrain carefully rather than inventing a shortcut.
• Reach the area via McCarthy Road, park near the footbridge, cross on foot, then walk or take the local shuttle to Kennecott.
• ATV access is limited along the route; visit the mines on foot.

The Jumbo Mine buildings have not been stabilized and must not be entered. Historic artifacts are scattered across the site, and abandoned explosives may remain; do not touch anything suspicious and report it to a ranger. Take standard precautions for hiking in bear country.