A View I Never Forgot: Mount Asama 21 Years Later

A View I Never Forgot: Mount Asama 21 Years Later - 31st July 2005

This photograph was taken 21 years ago at a parking area located roughly halfway along the Onioshidashi Highway. At that time, it was simply an open parking lot with nothing else around. I was surprised to learn that the site has since been developed into what is now known as the Asama Mountain Campground.

Onioshidashi HighwayMount Asama, located on the border between Nagano and Gunma Prefectures, is an active volcano with an elevation of 2,568 meters. It is one of Japan's most famous volcanoes and is widely regarded as a symbol of the Karuizawa and Saku regions because of its beautiful, cone-shaped profile. The mountain remains volcanically active today and is continuously monitored by the Japan Meteorological Agency.

Mount Asama has a complex geological history. Its present volcanic activity is believed to have begun around 10,000 years ago. Throughout recorded history, it has erupted many times. Among these eruptions, the Great Tenmei Eruption of 1783 is particularly well known. During this event, enormous amounts of volcanic ash and lava were expelled, creating the dramatic Onioshidashi Lava Flow that spreads across the northern slopes of the mountain. The eruption also caused severe agricultural damage and is considered one of the factors that contributed to the Great Tenmei Famine.

At the summit lies a crater known as Kamayama, where volcanic gases can still be observed today. Mount Asama is characterized by explosive "Vulcanian" eruptions, which can produce volcanic ash, ballistic rocks, and pyroclastic flows. In recent decades, volcanic activity has been recorded in 2004, 2015, and 2019.

At the same time, the area surrounding Mount Asama is part of Joshin'etsu Kogen National Park and is a popular destination for visitors seeking spectacular scenery, rich natural environments, and alpine vegetation. Hiking and trekking trails are available throughout the region, although visitors should always check the latest volcanic alert levels and safety information before entering the mountain area.
Combining breathtaking natural beauty with ongoing volcanic activity, Mount Asama remains one of Japan's most remarkable and iconic active volcanoes.

Taken with Nikon F2 Photomic AS / AF-S 28-70mm F2.8D / Kodak Gold 100