Well known for its rocks weathered into fantastic forms, this famous peak is ranked among Japan's three most noted places of rugged beauty.

Mount Myōgi is composed of many different peaks: Hakuun-zan (白雲山), Kondō-san (金洞山), Kinkei-san (金鶏山), Sōma-dake (相馬岳), Mitake-san (御岳山), Chōsunokashira (丁須ノ頭), Yakyu-san (谷急山) and others.

During Edo period, people thought that the god of the mountain protected the population from fire and lightnings.

It was formed 3 million years ago, at the same time as Mount Arafune located south-west, after a volcanic caldera.

In January 2010, Gunma prefecture officials, local authorities, the police, firemen and the hiking club discussed the issue during the "Meeting for the establishment of preventive measures to avoid accidents in Mount Myogi and surrounding mountains".