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Discover the AJ Mine & Gastineau Mill Tour in Alaska

Located in Juneau, Alaska, the AJ Mine & Gastineau Mill Tour offers visitors an underground journey into one of the most famous gold mining operations in Alaska. Guests enter historic mine tunnels carved deep into Mount Roberts, explore preserved mining equipment, and learn how gold was extracted and processed during the early 20th century. The tour provides a rare opportunity to experience the working environment of Alaska’s hard-rock gold miners.

Why it’s special: The AJ Mine was once one of the largest gold mines in the world, producing millions of ounces of gold while shaping the early development of Juneau.

History & Story of AJ Mine & Gastineau Mill

The Alaska-Juneau Mine, commonly known as the AJ Mine, began operations in the late 1800s and grew into one of the most productive gold mines in North America. At its peak in the early 1900s, the mine employed hundreds of workers who extracted gold-bearing rock from deep underground tunnels beneath the mountains surrounding Juneau.

The nearby Gastineau Mill processed vast amounts of ore from the mine, using advanced milling technology of the era to separate gold from rock. The operation became a cornerstone of Juneau’s economy until mining ceased during World War II. Today, sections of the historic mine have been preserved for guided tours that bring Alaska’s gold rush history to life.

What You’ll See & Do on the AJ Mine & Gastineau Mill Tour

• Enter historic underground mine tunnels beneath Mount Roberts
• Learn how miners drilled, blasted, and transported gold-bearing ore
• See authentic mining equipment and preserved underground work areas
• Discover how the Gastineau Mill processed ore to extract gold
• Hear stories of the miners who lived and worked in early Juneau

Hands-On Elements: Demonstrations of traditional mining tools and equipment help visitors understand how early hard-rock mining operated.

Photo/Video Policy: Photography is allowed in most areas of the mine tour, though flash may be restricted in certain underground sections.

Souvenirs & Extras: Mining-themed souvenirs, Alaska gold jewelry, and educational materials available in the visitor shop.

Pricing of the AJ Mine & Gastineau Mill Tour

Adult price: $65 per adult

Reservations are recommended, particularly during the summer cruise season when tours often sell out.

Visiting information for AJ Mine & Gastineau Mill Tour

Duration: Approximately 1–1.5 hours
Age limits: All ages welcome; children must be accompanied by adults
Accessibility: Underground terrain includes uneven surfaces and stairs; limited accessibility for mobility devices
Working Hours: Monday–Sunday 9:00 AM – 5:00 PM

Tours operate at scheduled times throughout the day and typically include transportation from central Juneau.

Nearby attractions to AJ Mine & Gastineau Mill Tour

• Mount Roberts Tramway
• Juneau Downtown Historic District
• Mendenhall Glacier

FAQs About Visiting the AJ Mine & Gastineau Mill Tour

Do visitors actually go underground in the mine?
Yes. The tour includes access to historic underground tunnels where miners once extracted gold from the mountain.

What does “AJ Mine” stand for?
AJ stands for Alaska-Juneau Mine, which was one of the largest gold mining operations in Alaska during the early 20th century.

Is the tour suitable for cruise ship passengers?
Yes. Many visitors arrive from cruise ships docked in Juneau, and the tour schedule is often coordinated with cruise ship arrival times.

Is the underground mine cold?
Yes. Temperatures inside the mine remain cool year-round, so visitors are encouraged to bring a jacket.

How far is the mine from downtown Juneau?
The AJ Mine is located just minutes from downtown Juneau at the base of Mount Roberts.