Ruby Dome, Mountain summit in Elko County, Nevada, US.

Ruby Dome is the highest mountain in the Ruby Mountains and in Elko County, Nevada, rising from a base of about 6,000 feet to 11,387 feet. It lies in the Ruby Mountains Ranger District of Humboldt-Toiyabe National Forest, about 21 miles southeast of Elko and 17 kilometres west of Nevada State Route 767.

The sources record no documented naming event for Ruby Dome; the garnet story attached to the Ruby Mountains is not confirmed for the peak itself. What is documented is its setting: the summit rises to 11,387 feet in the Ruby Mountains Ranger District of Humboldt-Toiyabe National Forest, about 21 miles southeast of Elko, and it is the highest point in Elko County.

The Ruby Mountains take their English name from garnets found in the range, red stones mistaken for rubies by early prospectors and surveyors. The Shoshoni name for the range, Duka Doya, means snowcapped, referring to the snow that stays on Ruby Dome and the surrounding ridges into summer. The peak lies within the Ruby Mountains Wilderness, designated by the 1964 Wilderness Act.

Hikers typically approach the summit via Griswold Lake and continue east toward the saddle between the lake and Seitz Canyon. The route involves straightforward scrambling and does not require technical climbing skills.

Ruby Dome is the highest mountain for over 90 miles (140 km) in all directions, and it ranks as the thirteenth-most topographically prominent peak in Nevada. It is also the twenty-seventh-highest mountain in the state, rising from a base of about 6,000 feet to 11,387 feet.