Country Background:The Earth country is one of the unrevealed lands in Naruto. A one shot picture of Deidara potentially revealed a village in the background; it was marked by earthen cliff dwellings. The Earth Country is one of the larger ninja countries in the Naruto world, sharing borders with Waterfall, Grass, Rain and several unnamed countries. Because of Hidden Rock's warlike tendencies against the Fire Country, their invasion path leads them through smaller countries like Grass. Like Hidden Cloud, they had two Jinchuuriki. However one of them, Roushi, left the village.
Village Background:Hidden Rock is one of the more powerful ninja villages in the world, allowing its leader to be called a "Kage." As such it is one of the Five Great Shinobi Countries. Approximately 13 years before the start of the series, the village was at war with Leaf. Their invasion path took them through the Grass Country. The efforts of the man who became Fourth Hokage and his team consisting of Hatake Kakashi, Uchiha Obito and Rin helped turned back their assault.
Village Leader:The current leader of Hidden Rock is Tsuchikage. Nothing is known about this individual at this point in time.
Earth People and Items of Note
Deidara:A missing-nin from Hidden Rock, Deidara left his village and began offer his services to terrorist groups. He eventually joined Akatsuki after falling victim to Uchiha Itachi's Sharingan abilities. Deidara utilizes a hidden technique which grants him mouths on the palms of his hands and chest. These mouths can ingest clay and infuse the material with his explosive chakra.
Kamizuru Clan:Years previously the Kamizuru Clan was a prominent clan in Hidden Rock. They took the forefront leading an attack against Konoha. They were met by the Aburame clan and stopped before they could enter Konoha. Thousands died in the battle, and the clan fell on hard times. Years later clan members Jibachi, Kurobachi and Suzumebachi would travel to the Bikouchuu birthing grounds to locate the legendary tracking bug in the hope it would help restore their name.
Yonbi:The Yonbi Bijuu (Four-Tailed Demon) of Rock was housed in Rock ninja Roushi. At some point Roushi left Rock behind to wander the world by himself. Akatsuki managed to defeat him and the four-tailed demon in battle. They extracted the demon from Roushi, ending his life.
Gobi:The Gobi Bijuu (Five-Tailed Demon) of Rock was housed in an unnamed ninja. Akatsuki managed to capture him and the five-tailed demon. They extracted the demon from the man, ending his life.