Topographic relief combined with geological map around Myoko volcano group. N-S trending volcanoes are Myoko, Kurohime and Iizuna Volcanoes from north to south. Eastward-open caldera (3 km in diameter) is located at the summit of Myoko Volcano. Volcanic fan deposits composed of pyroclastic flow and debris flow deposits are widely distributed in the east and northeastern foot of the volcano.

Panoramic view of Myoko volcano group from the E. Myoko, Kurohime and Iizuna volcanoes from right to left.

View of Myoko Volcano from the SE, Kurohime-kogen

View of somma of Myoko Volcano from the SW.

Aerial view of Myoko Volcano as seen from the NW. Note the central cone and horseshoe-shaped caldera opening to the E.

Panoramic view of Yakeyama (center) and Hiuchiyama (right) from Takazumayama

Yakeyama Lava Dome from the E, summit of Hiuchiyama

Yakeyama Lava Dome viewed from the WNW.

View of Niigata Yakeyama Volcano (left) and Hiuchi-yama (right) from the ESE (Kurosawa-yama).

Topographic relief around Tateyama Volcano combined with geological map. Tateyama Caldera in the center, and flat plateau (such as Midagahara) in the northwestern side of Tateyama Caldera. The shape of caldera rim is clear in the northwestern side of caldera (composed of new lava flow indicated by brown of reddish brown), but it is entirely eroded in the southeastern side of caldera (except in Goshikigahara). Surface of the volcano is covered by till and fluvioglacial deposits in the east-northeastern side of the caldera.

Aerial view of explosion craters in Murododaira and Jigoku-dani as seen from the E. Mikurigaike Crater in the center, and Jigokudani Valley (altered zone) in the right. Gentle slopes in Tengudaira to Midagahara are located on the left bank of Shomyogawa.

Murododaira Plateau viewed from the E. Mikurigaike and Midorigaike Ponds in the center and Jigokudani Valley (white colored), altered zone in the right.

A big fumarole (Kajiyajigoku) in Jigokudani Valley. The fumarolic emissions stopped in 1992 and restarted in 2005

Yakedake Volcano

Topographic relief combined with geological map around Yakedake Volcano. Warudaniyama Volcano ,Yakedake Lava Dome, Shirataniyama Volcano and Akandana Volcano are arranging in the NE-SW direction.

Topographic relief of combined with geological map around Yakedake Volcano (tilted by 10 degrees from the E to the W). Pyroclastic flow deposits and debris flow deposits in the foreground of Yakedake Lava Dome. Akandana Volcano is located in the left end of volcanoes.

Akandana Volcano and and Yakedake Lava Dome (right background) viewed from the SW

Yakedake Lava Dome viewed from the E, Taishoike Pond.

Yakedake Lava Dome viewed from the E, Kamikochi.

Aerial view of Kamikochi formed by damming by eruption of Yakedake Volcano, as viewed from the S.

Yakedake Lava Dome viewed from the E, Taishoike Pond

Akandanayama viewed from the SSE.

Craters at the summit of Yakedake Lava Dome. The lower left of this figure is north.

Summit crater (Shogaike crater) of Yake-dake Lava Dome viewed from the NE rim. Deep innkyoana crater in the right

Shogaike crater from the S, summit of Yakedake

Downward view of Inkyoana crater from the E. The bottom of the crater is unvisible

Inkyoana crater (on the right) and Shogaike crater (on the left) at the top of Yakedake Lava Dome, viewed from the E

Topographic relief around Norikura Volcano combined with geological map. Yotsudake Lava Dome in the N, Yebisu Crater and Kengamine Lava Cone in the center. The valley in the E was filled with Bandokoro Lava. Older Norikura Volcano (green-colored) is located on the lower left

Aerial view of Norikura Volcano as seen from the SE.

Panoramic view of Norikura Volcano from the W in the evening

Gongen-ike Crater viewed from the E, Kengamine

Topographic relief of Hakusan Volcano combined with geological map, showing the summit of Hakusan in the bottom of the figure

Aerial view of Hakusan as seen from the N. Gozengamine on the right and Kengamine on the left. Midorigaike Pond is located in the front of Kengamine.

Aerial view of Hakusan Volcano as seen from the NE. Bessan in the background

Onanjigamine viewed from the NW, summit of Gozengamine. Kon''yaike Pond in the center.

Topographic relief map around Ontake Volcano. NNE-SSW trending craters on the mountaintop.

Ontake Volcano viewed from the E. Kengamine, the highest peak, is located in the left end, and Mamakodake in the right end. Small peak in the left slope, Mikasayama, is presumed to be caldera rim of Older Ontake

Aerial view of Ontake Volcano as seen from the SSE. Craters are aligned in the N-S direction.

Sannoike Crater viewed from the SW. Mamakodake in the left background.

Fumaroles at the south of Kengamine, viewed from the SE.

S-3 Crater at the Jigokudani Valley, south of Kengamine

Aerial view of the eruptive activity at the upper part of Jigoku-dani (valley) in 1979, as seen from the S. Gray-colored smoke contains volcanic ash

Aerial view of eruptive activity at the upper part of Jigoku-dani (valley) in 1979. Volcanic ash reached to Maehashi City, Gumma Prefecture.

Topographic relief of Kita Yatsugatake Volcano combined with geological map, showing NW-SE to N-S trending volcanic row

Topographic relief of Kita Yatsugatake Volcano combined with geological map (tilted by 30°from the SW to the NE).

View of Tateshinayama (left) and Yokodake (right) in winter from the SW

View of Tateshimayama (left) from the NW (Ozasayama, Kirigamine).

Aerial view of Tateshinayama (center) and Yokodake (lower right) as seen from the S.

Tateshinayama (center background) viewed from the NW (Utsukushigahara).

Tateshinayama viewed from the W (Daimon-toge).