Ascent of Nasu-dake on 1996-10-05

Climber: Joseph Hirniak

Date:Saturday, October 5, 1996
Ascent Type:Successful Summit Attained
    Elevation:6283 ft / 1915 m

Ascent Trip Report

Hiked this peak in addition to Asahi-dake to the north (which i hiked first). Decided not to push onto the highest point of the Nasu massive, known as Mount Sanbonyari, as time would not have allowed me to catch the last bus from the terminal to get down. These are active volcanoes, having a major eruption in 1977. The number of active fumaroles and hissing fissures on the slope of Chausu-dake still evident making the hike quite interesting. Some confusion on nomenclature, I believe, in peakbagger's database, see below:

Peakbagger map/database lists this point (1915 meters) as the high point of Nasu-dake, which is also the collective name given to this volcanic massive. The highest point is actually Mount Sanbonyari (for some reason listed as a provisional
peak on peakbagger map/databse) to the north of Asahi-dake and Chausu-dake. The Nasu-dake (1915 meters) listed in peakbagger is actually known as Chausu-dake, a peak that I climbed along with Asahi-dake, correctly labelled as provisional, and just north of the former, sharing the same col. Stats for this hike only include vertical gain from col between Asahi-dake and Chausu-dake.
Summary Total Data
    Total Elevation Gain:706 ft / 215 m
    Route:maintained trail
    Trailhead:Col between Asahi and Chausu-dake  5577 ft / 1699 m
    Quality:2 (on a subjective 1-10 scale)
    Route Conditions:
Maintained Trail
    Weather:Pleasant, Calm, Partly Cloudy
Descent Statistics
    Time:26 Minutes

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