Hiking trails · Nagano

Yokodake’s Okunoin via Somazoe Ridge

八ヶ岳・横岳（杣添尾根・奥ノ院往復）

Distance

9.4 km

Hiking time

6 h 28 min

Ascent

1,129 m

Descent

1,128 m

Plan this hike

Hiking time is an estimate for an average hiker, without breaks.

This return route climbs the long Somazoe Ridge from the Yokodake trailhead in Uminokuchi Shizenkyo, joins the main Yatsugatake ridge at Sange-mine, and continues to Okunoin, Yokodake’s principal summit. The landscape changes from conifer forest to dwarf pine and rocky alpine ridge, where varied mountain flowers include the rare Urup-sō.

Mt. Yokodake summit weather (2,830 m, hourly, 14 days)

Sunrise today 06:10, sunset 16:50

		Tue, 11/3					Wed, 11/4										Thu, 11/5								Fri, 11/6								Sat, 11/7								Sun, 11/8								Mon, 11/9						Tue, 11/10				Wed, 11/11				Thu, 11/12				Fri, 11/13				Sat, 11/14				Sun, 11/15				Mon, 11/16				Tue, 11/17
Japan time		15	17	19	21	23	1	3	5	7	9	11	13	15	18	21	0	3	6	9	12	15	18	21	0	3	6	9	12	15	18	21	0	3	6	9	12	15	18	21	0	3	6	9	12	15	18	21	0	3	6	9	15	21	3	9	15	21	3	9	15	21	3	9	15	21	3	9	15	21	3	9	15	21	3	9	15	21	3	9	15	21	3	9	15
Temperature	°C	6°	1°	-1°	-3°	-3°	-3°	-4°	-5°	-4°	2°	5°	5°	3°	0°	-1°	0°	0°	0°	4°	8°	5°	2°	2°	0°	0°	1°	5°	9°	8°	1°	-2°	-4°	-7°	-8°	-2°	0°	-1°	-6°	-8°	-8°	-8°	-8°	0°	5°	4°	-2°	-2°	-4°	-3°	-3°	1°	4°	-2°	-4°	0°	2°	-3°	-6°	-4°	-2°	-9°	-10°	-1°	2°	-6°	-7°	-1°	1°	-8°	-9°	0°	4°	-5°	-6°	1°	3°	0°	0°	5°	6°	-3°	-7°	-2°	2°
Precipitation	mm														0.1	0.1	2.9	9	4.5	0.1	0.1	1.2					0.1																																0.1	0.2																		8	11		0.3	0.2
New snow	cm																																																										<.1	0.2
Snow depth	cm	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
Wind	m/s	1	0	0	1	1	1	1	1	1	1	2	3	2	2	2	2	1	1	2	1	1	0	1	1	1	2	3	4	4	2	2	2	2	3	4	4	3	2	2	2	2	1	2	1	1	0	0	1	1	2	1	2	2	2	2	4	2	3	5	3	1	2	2	3	1	2	2	2	1	2	2	2	1	1	1	1	1	1	2	4	2	2	1	2
Wind gusts	m/s	8	5	4	5	5	5	5	5	4	6	8	9	9	9	10	11	11	9	7	7	9	8	6	8	9	10	12	15	16	14	12	11	12	14	17	18	17	14	10	9	9	9	8	7	8	6	6	7	7	8	8	13	8	6	8	14	13	16	22	21	14	7	8	12	10	10	11	12	10	8	7	8	6	7	7	10	9	12	11	16	15	9	6	7
Wind dir.		↓	↓	↓	↓	↓	↓	↓	↓	↓	↓	↓	↓	↓	↓	↓	↓	↓	↓	↓	↓	↓	↓	↓	↓	↓	↓	↓	↓	↓	↓	↓	↓	↓	↓	↓	↓	↓	↓	↓	↓	↓	↓	↓	↓	↓	↓	↓	↓	↓	↓	↓	↓	↓	↓	↓	↓	↓	↓	↓	↓	↓	↓	↓	↓	↓	↓	↓	↓	↓	↓	↓	↓	↓	↓	↓	↓	↓	↓	↓	↓	↓	↓	↓	↓

Yokodake’s Okunoin via Somazoe Ridge facts

Start

横岳登山口

End

横岳登山口

Access · Start

横岳登山口 (parking)