Like an underground temple: giant quarry, the "stone town" operating since the Edo period

A vast underground space created by digging into rock layers roughly 15 million years old is the subject of this report. The site developed as a "stone town" and its quarrying operations are shown in this segment. The mining activity is said to date back to the Edo period. The video comes from the TV Asahi program Good! Morning, broadcast on November 8, 2026, within its Good! Ichioshi segment.

• Huge underground space formed from layers about 15 million years old
• Quarry that grew into a "stone town"
• Mining history dating back to the Edo period

「グッド！いちおし」きょうのテーマは、「『石のまち』として発展　巨大地下空間の採掘場」です。 およそ1500万年前の地層を掘って出来上がったのは、巨大な地下空間。「石のまち」として発展を遂げた、その採掘現場を大公開します！ ＃Goodいちおし （「グッド！モーニング」2026年11月8日放送分より） [テレ朝NEWS] https://news.tv-asahi.co.jp