Crust(eggshell)
Mantle(egg white)

egg, and we live on its shell(the mantle, which is madeThe key product of Samani's fishing industry is Mitsuishi Kombu kelp (Laminaria

HidakaTown

angustata), which is known as Hidaka Kombu throughout Japan. From July to September,

The experience is

Mt. Apoi(the earth s crust). Mt. Apoi
is like a mass of egg whiteCore(yolk)

WhelksT h e e a r t h i s l i ke a b o i l e dlike standing on

when kelp harvesting is at its peak, the beaches of Samani are a hive of activity. Hidaka

the mantle itself.

Kombu is spread out on the gravel and sun-dried as soon as it is harvested.

Mombetsu

Hidaka Kombu prices depend on where it was harvested. All Samani shores are ranked

Samani Town

Shinhidaka
Town

Atsuga - Niikappu

as high quality. The high quality of the local kombu kelp is attributed to the presence ofof peridotite) that has been

Niikappu
Town

Tomihama

MantleUrakawa
Town

Shizunai

Mt. Apoi and its peridotite, which is rich in iron, magnesium and other minerals. The

pushed onto the surface.

Harutachi

nutrient-rich water that flows from the mountain into the sea may contribute to the fine

A Story of Gifts from Deep Inside the Earth Connecting Land and People Together

surfaceup to 670 ㎞

Crust

The waters off the Hidaka coast are known as fertile

Upper mantle

fishing grounds where the warm Tsugaru current, which

Samani Town in the eastern Hidaka region of Hokkaido is home to mountains and gorges
made of peridotite with a purity and variety found in few places worldwide, as well as
endemic alpine plant communities that thrive in the area s distinctive soil. The town also
has a long history and a rich culture based on its development as a trading hub, thanks to

2,900‒5,100 ㎞

far below. In this way, Mt. Apoi is part of the area s

to Mars but

culture of Samani.

Misaki
Honporo - Utabetsu
Utaro
Toyo

Shore disparity of
Hidaka Kombu

As a result, salmon, Alaska pollock, squid and other fish

sent a probe

octopuses, flounders, sea urchins, whelks and the like,Mars
55 million
kilometersaway

has not yet
reached theExtra-high quality
High quality A
High quality B
Medium A
Medium B
Medium C
Regularcoast al waters are also thriving fishing grounds for
A boat fully loaded with Hidaka Kombu kelp

as well as kombu kelp and other types of seaweed.

Mt. Apoi Geopark is a geological area where visitors can

Shoya

Hirau - Fuyushima - Chikafueof the Kuril Islands along the eastern coast of Hokkaido.

5,100‒6,400 ㎞

unknown world even more mysterious than Mars.

learn about and enjoy valuable geological heritage and the

Erimo
Town

are caught off the Samani coast (Mt. Apoi Geopark). The

valuable geological heritage providing a window into an

Mankind has

Urakawa
IkantaiSamani(or Kuril) current flowing southward from the eastern side

Human

far as Mars, nobody has ever bored through thethe favorable natural harbor created by its unusual coastal terrain.

rich natural environment, as well as the history andToei

Long-handled hookfor kelp harvestingalong the Sea of Japan coast, meets the cold Oyashio

Although mankind has technology to send a probe as
earth s thin crust beneath our feet to reach the mantle

Ogifushibranches off the Tsushima current flowing northward

Lower mantle
670‒2,900 ㎞

SamaniTown

Mitsuishi

quality of the local kelp.

Although Mt. Apoi is only 810 m high,approximately 80 species of alpine plants growearth's
mantle!

CrustThin parts are
only a few
kilometers thick.

MantleOuter coreCore

Inner core

Ecologyon its slopes ‒ including 20 or so endemic
subspecies and varieties. Such a large
concentration of endemic species in one
region is rare throughout the world, and as aresult, Mt. Apoi s colonies of alpine flora are
one of only six special natural monuments ofSo, how was Mt. Apoi s peridotite ‒ which is more distant from us thanJapan found in Hokkaido.

Mars ‒ made? It is all related to the Earth s dynamic movement.
The earth s surface is covered with a dozen or so huge slabs of rock

Hidakaso

Ezokozorina

Samani-yukiwari

Callianthemum miyabeanum

Hypochoeris crepidioides

Primula modesta var. samanimontana

Apoiazumagiku

Geologycalled tectonic plates, each of which moves at a speed of several
ce nt i m ete r s p e r ye a r. T h e s e p l ate s co m e i nto co nt ac t at t h e i r

Apoitachitsubosumire

Erigeron thunbergii subsp. glabratus var. angustifolius Erigeron thunbergii subsp. glabratus var. angustifolius

Apoimantema

Samaniotogiri

Silene repens var. apoiensis

Hyericum samaniense

Mt. Apoi s valuable alpine vegetation is nurtured by the cool coastal climate, and is also greatly influenced by
the Apoi peridotite. Soil created from the peridotite contains large quantities of element (nickel, magnesiumboundaries and slide past one another. Mt. Apoi was formed as aand the like) that inhibit plant growth. This acts as a barrier, preventing the incursion of lowland vegetation

result of the collision of gigantic tectonic plates some 13 million years

such as tall trees. It also created Apoi s alpine flora from the northern vegetation that adapted to the specialago.

soil as it moved south during the glacial period.
Every year, many climbers visit Mt. Apoi to view such precious and pretty flowers.
North American Plate(continental Plate)Eurasian Plate

Eurasian Plate(continental Plate)

The Hidaka Mo
were formed untains
when thetwo plate collided !

Tr
en

Kuril Islandsa13 million years ago

North
American
Plate

irth
The b Apoi！
of Mt.

HidakaMountains

HidakaMountains

PaciﬁcPlate
Plate

Mt. Apoi

Philippine Sea Plate

Plat

e

Thrust upwards！

ch

Plate
collision！

Current tectonic plate locationJapan
Trench

ch
at
k

Plate

am
-K
ril
Ku
Paciﬁc Plate(oceanic Plate)

Plate location 13 million years ago

GEO S TOR Y

Samani Town

Mt. Apoi Geopark Visitor Center

Samani Folk Museum

Apoimaimai

Himechamadaraseseri

Japanese pikaParaegista apoiensis

Pyrgus malvae

Ochotona hyperborea yesoensis

Restaurants

Lodging facilities

Secretariat: Commerce, Industry and Tourism Department, Samani Town
Postal Code: 058-8501
1-21 Odori, Samani Town, Hokkaido Pref.
Tel: 0146-36-2111 (Switchboard) 0146-36-2120 (Direct phone)
Fax: 0146-36-2662
E-mail: apoi.geopark@samani.jp

Apoi Sanso Hotel
Apoi Sanso Hotel is located near the Mt. Apoi trailhead.
It is known for its views of Mt. Apoi and the Paciﬁc
Ocean, and for its warm hospitality.

Mt. Apoi Geopark Promotion Council in Samani

Number of
guestrooms

19

Capacity

59 guests

Inquiries

Tel.: 0146-36-5211
E-mail: samani@apoi-sanso.co.jp

Mt. Apoi Geopark has two mascots:
Kanran-kun, born out of local peridotite,
and Apoi-chan, an alpine plant fairy.
Representing the area s hard stone,
Kanran-kun (the term kanran means
peridotite in Japanese) is strong-willedwith a keen sense of justice, but a bit
scatterbrained. Apoi-chan is bright likethe sun, always kind and reliable.

Kanran-kun

Apoi-chan

Mt. Apoi Geopark Mascots

This small folk museum at the base ofCape Enrumu showcases historicalartifacts relating to Samani, which
thrived from relatively early in
Hokkaido s short history. Its old
d o c u m e n t s f r o m To j u i n Te m p l e(collectively designated an Important
Cultural Property of Japan) areparticularly noteworthy.

https://www.apoi-geopark.jp/english/

Visit the Mt. Apoi Geopark website
for information on the geopark andSamani Town.

The Mt. Apoi Geopark Visitor Center provides information to
maximize enjoyment of the geopark through exhibits, videos, andcommentary on Samani s geological and geomorphologicalcharacteristics, natural environment, history, culture, and industry.
It also provides real-time information on alpine plants and brown
bears among other things, to make climbing Mt. Apoi a safe andpleasant experience.
Open

April ‒ November(Inquire for visits between December and March.)

ClosedOpen every day during the season

Hours

9:00‒17:00

Open

All year round

ClosedMondays and year-end/New Year holidays

Hours

10:00‒16:30

Admission Free
Inquiries

Tel.: 0146-36-3335
E-mail: samanikyoudokan@future.ocn.ne.jp

Samani Library

Admission FreeBy car■Sapporo-Minami IC → Hokkaido Expressway（40km）→ Tomakomai-Higashi IC → Hidaka Expressway（60km）→ Hidaka-Atsuga IC →→ National highway（76km）→ Samani■New Chitose Airport → National highway（20km）→ Numanohata-Higashi IC → Hidaka Expressway（52km）→ Hidaka-Atsuga IC →→ National highway（76km）→ Samani■Tokachi-Obihiro Airport → Prefectural road / National highway（32km）→ Taiki → National highway（12km）→ Toyoni → National highway【Temma Road / Nozuka Pass】（63km）→ Nishi-Horobetsu, Urakawa Town → National highway（9km）→ Samani■Obihiro → Tokachi Bus（2hr. 20min.）→ Hiroo → JR Hokkaido Bus, 3 rounds trip / on weekdays (2 rounds trip / on weekends and holidays)（2hr.）→ Samani■New Chitose Airport → JR Hokkaido Bus[Exp. Bus Hidaka-Yushun ] 1 round trip / on weekends and holidays（3 hr.）→→ Urakawa Town Office → JR Hokkaido Bus (30 min.) → Samani■New Chitose Airport → Donan Bus（30 min.）→ Numanohata Sta. → Bus Line from Tomakomai■Tomakomai → JR Hokkaido Bus[Exp. Bus Tomamo ] 1 round trip / day（3 hr. 20min.）→ Samani■Tomakomai → Donan Bus / JR Hokkaido Bus（Transfer at Shizunai and/or Urakawa）(4.5 hr. ‒ 5.5 hr.）→ Samani※If travelling from New Chitose Airport to Samani, you can also take buses from the Oyachi Bus Terminal in Sapporo.

By bus■Sapporo → JR Hokkaido Bus[Exp. Bus Erimo ] 1 round trip / day（3.5 hr.）→ Samani■Sapporo → Donan Bus[Exp. Bus Pegasus ] 5 rounds trip / day（3 hr. 45 min .）→ Urakawa Terminal → JR Hokkaido Bus (25 min.) →→ Samani

Inquiries

Tel.: 0146-36-3601
E-mail: apoi.gvc@iris.ocn.ne.jp

IwateyaBusiness Hotel Plaza Misuzu(Japanese-style inn)

Number of
6
guestrooms

Number of5
guestrooms

Cape Erimo（Samani Town）

Hyakuninhama

Mt. Apoi Geopark

Capacity

Mt. Apoi Peridotite Plaza

Tel.

Urakawa
Nishi-Horobetsu（Route 336）

Mt. Apoi Golden Road

Mitsuishi
Temma Road

Niikappu
Shizunai
Tomakomai
East Port
Tomakomai Mombetsu（Hidaka）
Port

Hiroo

NozukaPass

Toyoni

Hidaka-Atsuga Interchange
Taiki
Churui-Taiki Interchange

MukawaTomakomai

Numanohata-Higashi Interchange

Minami-Chitose
New Chitose Airport

Open

All year round

ClosedMondays, last weekday of every month and year-end/New Year holidays

Hours

10:00‒18:00/Sundays 10:00‒17:00

Tel.: 0146-36-4181
Inquiries
E-mail: library-302@air.ocn.ne.jp

L EARN

Tel.

0146-36-2105

SenryuSobadokoro Ajiyoshi

Ajikatamura

Genre: Ramen restaurant
Tel.: 0146-36-3533
Closed: Irregular holidays

Genre: Soba noodle
Tel.: 0146-36-4514
Closed: Irregular holidays

Genre: Restaurant
Tel.: 0146-36-2363
Closed: Sunday

ShushinNiku-doraku

Genre: Restaurant
Tel.: 0146-36-2511
Closed: Tuesday

Genre: grilled meat restaurant
Tel.: 0146-36-2051
Closed: Monday（Reservation is required）
Genre: grilled meat restaurant
Tel.: 090-2323-5846
Closed: Monday and Tuesday

Ikko

Inakaya

IppukuHoshi-no-Aya (Apoi Sanso Hotel)

Genre: Restaurant
Tel.: 0146-36-5100
Closed: Irregular holidays

Genre: Izakaya
Tel.: 0146-36-3418
Closed: Monday

Genre: Izakaya
Tel.: 0146-36-5550
Closed: Sunday

Genre: Restaurant
Tel.: 0146-36-5211
Closed: Open every day

Samani Tourist Information Center(Former Samani Sta.)

Tel.

0146-36-2551

0146-36-2363

Kiminoya
Genre: Restaurant, Izakaya
Tel.: 0146-36-4262
Closed: Irregular holidays

Recommended food

8:30‒16:30
Weekdays during Nov. to Mar. 10:00‒16:00

20 guests

Yakiniku Chiba

Kurumaya Drive-in
Genre: Restaurant
Tel.: 0146-36-4177
Closed: Irregular holidays

Open

Number of
10
guestrooms
Tel.

Hyakuryo
Genre: Restaurant
Tel.: 0146-36-2417
Closed: Irregular holidays

Wednesday and Thursday during Nov. to Mar.
year-end/New Year holidays

Number of
7
guestrooms
0146-36-5533

Kuina
Genre: Ramen restaurant
Tel.: 0146-36-4755
Closed: Thursday

Closed(Japanese-style inn)

Capacity

Genre: Japanese cuisine
Tel.: 0146-26-7878
Closed: Wednesday

0146-36-2159
or 36-4450

Ajikatamura

25 guests

Ominaeshi

Genre: Restaurat
Tel.: 0146-36-3283
Closed: Monday

The Information Center is also where you can buy Hidaka Kombu
and other kelp products as well as various geopark souvenirs.

(Japanese-style inn)

Tel.

This plaza showcases polishedspecimens of peridotite and other rocks
from the Hidaka Mountains, which areused for practical training by university
students, and other purposes.

5‒6 guests

Avion

Genre: Sushi, Chinese cuisine, Izakaya
Tel.: 0146-36-2159
Closed: Monday

9 guests

Kanpaku

Capacity
A collection of approx. 93,000
books, as well as magazines, amultimedia space, and a seminarhall. Countless books on Samaniand Mt. Apoi Geopark s natural
history can be found here.

Capacity

Benkei / Enraku

Seaside marine product market
Whelks of the highest quality and other Samani
seafood delicacies are sold at reasonable
prices.

Takomanma boiled octpus paste/
Tsubumeshi (rice cooked with whelks)

Specially-made Oyaki

Paste made from the eggs of locally caught
octopuses, and rice cooked with whelks are
popular with tourists.

Sweet bean-paste sandwiched between flour
waffles and cooked to perfection

Marusan Kudo Store (Convenience Store)

Nakamura Oyaki (confectioner)(Japanese-style waffles)

Mt. Apoi Survey & Research Support Center
An inexpensive accommodation facility for researchers and students
involved in research related to Mt. Apoi Geopark (Samani Town). Meals
are not provided but cooking facilities are available. Rock cutters andpolishing machines are also available for use at all times.
Number of
guestrooms
CapacityTel.

S T AY

5 private rooms, 1 hall
55 guests (including hall)
0146-36-2120(Samani Commerce, Industry and Tourism Dept.)

Kashibe Suisan Ltd.
Open

8:30‒17:00

Sunday 9:00-15:00

Closed Irregular holidays
Tel.

0146-36-4823

Open

8:30‒20:00

Closed Open dailyTel.

0146-36-2355

FOOD

Open

10:00‒17:00

Closed Sundays
Tel.

0146-36-4948

Tokachi-Obihiro Airport

Tomakomai-Higashi Interchange
ChitoseMemuro-Obihiro Interchange

ObihiroKushiroChitose-Eniwa Junction
SapporoSapporo-Minami Interchange

Obihiro Junction

A C C ES S

Akan InterchangeA total of 35 sites in 5 areas
A1 Geological Power Station No. 2
A2 Geological River Beach near the Old Quarry
A3 Geological Japanese White Pine Monument
A4 Geological Fudo-no-sawa
A5 Geological Dam of Power Station No. 2
A6 Geological Horoman-gawa Inari Shrine
A7 Geological Horoman Dam (dam of Power Station No. 3)

Area A

Horomankyo Area

Mt. Apoi Area

Samani Coast Area

Area D

Hidaka Yabakei Area

Area E

Shintomi Area

Samani River（Samani Town）

Shintomi

Panke River

Horoman River

Area E

Yushun Village
AERU

D1 Geological Ana-iwa in Fuyushima
D2 Geological Fault at the Higashi Fuyushima Tunnel
D3 Geological Metagabbro at the Kotoni Tunnel
D4 Geological Taisho Tunnel
D5 Geological Geological fold at the Ruranbetsu Tunnel
D6 Historical Samani Mountain Path and Wasuke Jizo
D7 Geological Former Plate Boundary at the Fuyushima Ooma

Mt. Hiroo

236
Mt.Apoi
Geopark

Shintomi Area

Lake Samani
KineusuSamani Dam Campsite

C1 Geological Shiogama Tunnel and Rosoku-iwa
C2 Geological Oyako-iwa and Sobira-iwa
C3 Geological Cape Enrumu
C4 Geological Mt. Kannon
C5 Historical Tojuin Temple
C6 Geological Byobu Cliﬀ in Hirau
C7 Geological Old quarry behind Samani Elementary School
C8 Historical Okada District cise (traditional Ainu dwelling)

Area C

Menashunbetsu River

Kamikineusu

B1 Ecological Rest Spot No. 4
B2 Ecological Alpine Plant Restoration Test Site
B3 Geological Fifth-stage mountain lodge
B4 Geological Sixth to seventh stages
B5 Geological Umanose flower fields
B6 Ecological Mt. Apoi
B7 Ecological The former Horoman flower fields
B8 Geological Mt. Apoi to Mt. Yoshida
B9 Geological Mt. Yoshida
B10 Geological Mt. Pinneshiri

Area B

Hiroo →

Hidaka-Horobetsu
River

Lake Urara

Onarushibe River

Isakanai River

Okada

Samani Library
Samani Town Hall
Mt. Apoi
Peridotite Plaza Nishi-

Tsukisamu

←

Ur

ak

NishiHorobetsu

aw

a

236

HigashiHorobetsu

Unbe River

336

The Geopark app can be downloaded
free of charge from the Apple App
Store or Google Play Store, or via the
QR code below.

C7
C6

OizumiMombetsu
River

Porosanushibetsu
River

Hirau

Lake Horoman

Ponsanushibetsu
River

336

Area C

Mt. ApoiSamani Coast Area

This free app shows pictorial map
information and present location using the
GPS function of the mobile device. The
app displays an overview and photographof each site, tourist spot, restaurant,
accommodation facility and the like in Mt.
Apoi Geopark.

Opirarukaomappu River

Mt. Pinneshiri

Samani Folk Museum

Check out the sites using a smart phoneor tablet PC. Free app “Geopark”

Mt. Apoi Area

Samani Tourist
Information Center（Former Samani Sta.）

SamanaiOyako-iwa Fureai Beach Campsite

Sites refer to the Geopark s highlights, which include Geological, Ecologicaland Historical sites.

Area B

TashiroUtoma

E2 Geological Lenticular sandstone at the Samani Dam
E3 Geological Chert in Shintomi
E4 Geological Limestone blocks in Matsuokazawa

C8

Horoman River

Fuyushima

Mt. Apoi Geopark Visitor Center

Area A

Apoi Sanso Hotel

Horomankyo Area

Apoi-Sanroku Park Campsite

Mt. Hakamagoshi
Mt. Tengu

LegendArea D

Hidaka Yabakei Area

Geopark Boundary
Quasi-National Park Boundary

Horoman
Nikanbetsu River

National Highway

Asahi

Site
Apoi Pinneshiri Mountain Trail
Samani Mountain Path

App Store

Google Play

【iPhone】【Android】

This map data is based on topographic maps publishedby Geospatial Information Authority of Japan with its approval.
(Approval Number JYOU-SHI No.419-GISMAP40298 2017)

Chikaura

336
im
o→

Er

Funemai

A gorge of peridotites

Endemic alpine plants supported by peridotite

A trading center known for its unusually shaped coastal rocks

Geosite of colliding plates, and an ancient routeRocks from far-oﬀ southern seas

The Horomankyo Gorge, which is made up of peridotites, stretches approximately 8 km to the eastof Mt. Apoi where unspoiled mixed coniferous and broad-leaved forests ex tend along themountainside. In particular, the predominant spread of Kitagoyo (P. parviflora var. pentaphylla)
trees here at the northern limit of their habitat creates unique scenery that led to the area's
designation as a Natural Monument of Japan in 1943. Locally known as a favorable late-October
autumn foliage spot. The area is also home to hydroelectric power facilities that paved the way forthe development of electricity sources in the Hidaka region in the early years of the Showa period(1926-1989), thus creating an air of industrial heritage. Although the forest road here is narrow
and unpaved, the presence of evacuation spaces at key points allows vehicular passage.
The Horomankyo Gorge, which is located within the 10km 2 Horoman peridotite complex, provides
insights into the world of the ear th's deep mantle. The area is dotted with sites that allow
researchers to observe various types of peridotite.

Mt. Apoi is relatively easy to climb because no heavy gear is required. However, climbers need acertain level of fitness to negotiate the 700 m-long medium-gradient approach to the trailhead,
which is at an elevation of 80 meters about a kilometer inland.
After the trailhead is a stretch of mixed coniferous and broad-leaved forests that are home to avariety of herbaceous plants. Near the fifth-stage mountain lodge is the forest limit, where a dwarf
stone pine zone extends over rugged peridotite ground. Colorful alpine plants also begin to standout in this area. The trail here provides panoramic views of the Pacific Ocean on clear days, andthe Umanose area also affords spectacular views of the Hidaka Mountains and other sights.
It takes between 2.5 and 3.5 hours to reach the summit, and 4.5 to 6 hours for the round trip.
Mt. Apoi ̶ a rich habitat for flowers ̶ is made up of peridotites from deep in the earth's mantle.
Climbers flock there year after year to enjoy its precious natural environment.

In contrast to the geology of the towering Apoi Mountains, the area to their west is characterized
by gently sloping terrain, with Samani Town center located on the coastline. Along with the Apoi
Mountains, rocky peaks of varying sizes flanking the sea characterize the region's landscape. The
unique scenery here is associated with numerous legends of the Ainu, who have lived in harmony
with the natural environment for hundreds of years. One of these rocky mountains is Mt. Kannon,
thought to have previously been the site of a chashi (fort). At a height of only 100 meters or so,
this peak overlooks Samani Fishing Port and has an observatory that affords sweeping views ofrock formations in the sea as well as Mt. Apoi and other local icons.
Cape Enrumu on the coast east of Samani Fishing Port is an island connected to the mainland bya sandbar. The 1799 establishment of the Samani Kaisho outpost office by the Edo shogunate at
the base of Cape Enrumu provided significant support for Samani's development. The observation
platform here is an ideal spot from which to view Mt. Apoi Geopark.

Hidaka Yabakei is a 7 km stretch of precipitous cliffs along the coast of the Pacific Ocean, into
which the foot of Mt. Apoi plunges. It is believed to mark the place where the Eurasian Plate andthe North American Plate once collided. Part of the boundary (the Hidaka Main Thrust) between
the plates remains in this area.
Located at the southern end of the Hidaka Mountains along with National Route 336 (also known
as the Golden Road) in Erimo Town, this area used to be notoriously difficult to pass. The Samani
Mountain Path was built on the cliffs around 200 years ago to facilitate passage, and is now used
as a footpath. At the bottom of the cliffs, high-quality Hidaka Kombu kelp (also known as Mitsuishi
Kombu or Laminaria angustata Kjellman) thrives on nutrients from the region's peridotite. Surfboats harvesting kelp, and locals sun-drying the crops are typical summer scenes in this area.

Kitagoyo evergreens(a Natural Monument of Japan)
and autumn leaves

Mixed coniferous and broad-leaved
forests extend to the fifth stage ofthe mountain

Oyako-iwa ‒ the subject of a sad
Ainu legend

Ana-iwa sea cave in Fuyushima

The Japanese archipelago is an aggregation of accretionary prisms. These are formed from thesurface layer of an oceanic plate that is scraped off and accreted onto a continental plate when
the two collide, and the former subducts beneath the latter in a trench on the ocean floor.
Sandstone and mudstone or sediment from the overriding plate as well as limestone, chert andbasalt from southern seas thousands of kilometers away are mixed and undergo deformation,
forming a roughaggregate of dif ferent
A trench forms at therocks known as aplate collision boundary.
mélange.
Limestone is distributed
extensively in and aroundthe Shintomi A rea, andhas long been mined
there. T his rock is also
known to derive fromAccretionary
accretionary prisms
Continental plate prism
because outcrops in the
Oceanic platearea have a typical
Sediment on the oceanic plate
mélange structureis scraped off and accreted
onto a continental plate
without continuous
Mantlebedding.
MantleHoromankyo Area

Man-made Lake Horoman

Mt. Apoi Area

Hydroelectric power plant with a historyof over 70 years

A natural rock garden on the ridge

Exposed peridotite along the ridge

Samani Coast Area

Tojuin Temple ‒ one of the Three
Government Temples of Ezo anda structure that has witnessed thehistory of Hokkaido s development

Platy joints at Cape Enrumu,
a land-tied island

SI TE MAP

Hidaka Yabakei Area

Frozen Ohonai Waterfall in winter

Wasuke Jizo statue at the Samani
Mountain Path east trailhead

Shintomi Area