Ibi Kogen

(500 m — 800 m)

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頂上の観測所 800 m
4500 m	4600 m	4750 m	4850 m	5100 m	5150 m	5150 m

Ibukiyama

(435 m — 855 m)

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頂上の観測所 855 m
4500 m	4600 m	4750 m	4850 m	5100 m	5150 m	5150 m

Iizuna Kogen

(1080 m — 1480 m)

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頂上の観測所 1480 m
4600 m	4650 m	4700 m	4800 m	5000 m	5100 m	4950 m

Iizuna Resort

(900 m — 1500 m)

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頂上の観測所 1500 m
4600 m	4650 m	4700 m	4800 m	5000 m	5100 m	4950 m

Ikawa Kainayama

(1095 m — 1185 m)

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頂上の観測所 1185 m
4600 m	4700 m	4900 m	5050 m	5150 m	5200 m	5200 m

Ikenotaira Onsen Alpenblick

(800 m — 1500 m)

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頂上の観測所 1500 m
4600 m	4650 m	4700 m	4800 m	5000 m	5100 m	4950 m

Ikenotaira Snow Park

(1425 m — 1495 m)

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頂上の観測所 1495 m
4550 m	4600 m	4700 m	4850 m	5000 m	5050 m	5000 m

Imabetsu Choei

(5 m — 80 m)

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頂上の観測所 80 m
4600 m	4600 m	4700 m	4650 m	4900 m	4750 m	4650 m

Imajo 365

(430 m — 760 m)

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頂上の観測所 760 m
4550 m	4550 m	4650 m	4800 m	5050 m	5150 m	5150 m

Imakane-cho Pilika

(133 m — 410 m)

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頂上の観測所 410 m
4700 m	4600 m	4600 m	4600 m	4900 m	4700 m	4650 m

Ina Ski Resort

(876 m — 1086 m)

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頂上の観測所 1086 m
4500 m	4650 m	4700 m	4800 m	5100 m	5150 m	5100 m

Inawashiro Resort

(760 m — 1200 m)

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頂上の観測所 1200 m
4750 m	4750 m	4750 m	4800 m	5000 m	5050 m	4950 m

Inawashiro Ski

(675 m — 1255 m)

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頂上の観測所 1255 m
4750 m	4750 m	4750 m	4800 m	5000 m	5050 m	4950 m

Iox-Arosa

(350 m — 850 m)

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頂上の観測所 850 m
4500 m	4600 m	4700 m	4850 m	5000 m	5100 m	5100 m

Ipponsugi

(440 m — 470 m)

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頂上の観測所 470 m
4650 m	4700 m	4700 m	4800 m	5050 m	5100 m	4950 m

Ishikari Heigen

(20 m — 126 m)

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頂上の観測所 126 m
4600 m	4550 m	4650 m	4650 m	4750 m	4700 m	4650 m

Ishiuchi Hanaoka

(280 m — 405 m)

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頂上の観測所 405 m
4650 m	4700 m	4700 m	4800 m	5050 m	5050 m	4950 m

Ishiuchi Maruyama

(256 m — 920 m)

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頂上の観測所 920 m
4650 m	4700 m	4700 m	4800 m	5050 m	5050 m	4950 m

Ishizuchi

(1250 m — 1400 m)

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頂上の観測所 1400 m
4650 m	4750 m	4900 m	5100 m	5150 m	5250 m	5250 m

Isshiki Kokusai

(1000 m — 1200 m)

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頂上の観測所 1200 m
4450 m	4550 m	4700 m	4850 m	5050 m	5150 m	5100 m

Itoigawa Seaside Valley

(240 m — 740 m)

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頂上の観測所 740 m
4600 m	4700 m	4700 m	4800 m	5000 m	5100 m	4950 m

Itoshiro Charot Town

(650 m — 850 m)

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頂上の観測所 850 m
4450 m	4550 m	4700 m	4800 m	5050 m	5100 m	5100 m

Itsukamachi

(160 m — 500 m)

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頂上の観測所 500 m
4650 m	4700 m	4700 m	4800 m	5050 m	5050 m	4950 m

Iwakisan Hyakuzawa

(346 m — 784 m)

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頂上の観測所 784 m
4600 m	4650 m	4700 m	4700 m	4900 m	4750 m	4650 m

Iwanai Resort

(365 m — 1164 m)

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頂上の観測所 1164 m
4650 m	4600 m	4600 m	4600 m	4850 m	4700 m	4650 m

Iwappara

(400 m — 985 m)

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頂上の観測所 985 m
4650 m	4700 m	4700 m	4800 m	5050 m	5100 m	4950 m

Izumi Kogen Spring Valley

(687 m — 959 m)

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頂上の観測所 959 m
4700 m	4750 m	4750 m	4800 m	4900 m	4950 m	4900 m

Izumigatake

(600 m — 850 m)

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頂上の観測所 850 m
4700 m	4750 m	4750 m	4800 m	4900 m	4950 m	4900 m

Jeunesse Kurikoma

(395 m — 770 m)

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頂上の観測所 770 m
4600 m	4600 m	4750 m	4750 m	4850 m	4850 m	4700 m

Jibuzaka Kogen

(1160 m — 1350 m)

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頂上の観測所 1350 m
4450 m	4600 m	4700 m	4800 m	5150 m	5250 m	5150 m

Jigatake

(940 m — 1200 m)

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頂上の観測所 1200 m
4550 m	4650 m	4700 m	4800 m	5000 m	5050 m	4950 m

Joetsu Kokusai

(200 m — 1017 m)

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頂上の観測所 1017 m
4650 m	4700 m	4700 m	4800 m	5050 m	5050 m	4950 m