Danda stream 丹大溪

Hot springs survey

2/27 - 3/2, 2019

Facebook event page

https://www.facebook.com/events/372732886838005/

Team 團隊

Philip Diller

0938-824-801

philip.diller@gmail.com

Leigh Hardy

0930-144-643

hardyleigh@yahoo.co.uk

Wolfgang Schechinger

0987-936-784

hubahopp@gmx.de

Ronan Counihan

090-5419-884

ronancounihan@hotmail.com

Judy Wan-Ling Chen

Itinerary Summary 行程

The Jia Nian Hot Springs 加年端 溫泉 in Nantou 南投 is a section of wild hot springs over 300 metres long on the Danda river 丹大溪 culminating with Danda hot springs 丹大溫泉 further upstream.

We will drive to the end of highway 16 in Nantou county 南投縣 Xinyi district 信義鄉  late in the evening of  2/27 where we’ll camp for the night for an early start the next morning. The next day we’ll hike along the flat, silty river bed of the Danda river 丹大溪 to the main series of springs (17k/4hr). If possible we’ll push through the first slot canyon to establish a basecamp. The next day, we’ll continue further upstream with light packs exploring other outcrops and attempting to reach Danda hot springs then return to the basecamp. We’ll hike back to the car on the last day and visit Double Dragon Waterfalls if time permits.

Reaching these spring outcrops requires passing through 3 slot canyons. The 3rd of which has a waterfall and is probably the most difficult. Each team member must be self-reliant, experienced and comfortable with challenging river tracing.

Transportation 交通

Train Taipei > Taichung 2/28 morning

Train Type

Train Code

Origin-Dest

Departure Taipei

Arrival Taichung

Estimated Time

Fare

Tze-Chiang Limited Express

105

Keelung→Pingtung

07:00

09:16

2h 16m

$375

Tze-Chiang Limited Express

113

Cidu→Pingtung

08:28

10:38

2h 10m

$375

Drive from Taipei to Danda

Xindian MRT to 台16線 Nantou, Xinyi, 3 h 17 min (253 km) via 國道3號

https://goo.gl/maps/frqar7i4DUo

Parking point (Heliuping 合流坪)

23.7871310,121.0108899

https://www.google.com/maps/place/23°47'13.7"N+121°00'39.2"E/@23.787131,121.0087012,17z

Danda Road 丹大林道

Heliuping 合流坪 https://goo.gl/maps/zVXCTgoiAuB2

This is where we will park our car.

Control point on Danda Road 丹大林道

https://goo.gl/maps/bMZXeKs2nw72

Can this point be passed by hikers without vehicles? 23.77867,121.0450837

This is well before Sanfensuo (3/10ths station) 三分所 on the Danda road 丹大林道.

We plan to hike up the Danda river bed instead of on the Danda road.

Zhuoshui River 濁水溪

Where are the dams being released which this sign is warning about, and on which river? Tracking of river gauges and careful survey of imagery suggests that any dams are on the Zhuoshui River 濁水溪 rather than on the Danda river 丹大溪 tributary.

Trails down to the river from Danda Road

關門國家步道系統 or 關門古道 - This trail comes off of the Danda road and goes directly down to Danda hot springs. The trail does not seem to be listed on the Forestry website anymore.

Danda hot springs challenge

The additional distance to Danda hot springs 丹大溫泉 is considerable. The path would either be in the river where the topology is extreme, or along Danda road 丹大林道 to Liufensuo 六分所 then following the Luantan mountain trail 巒潭山登山步道 (or Guanmen trail 關門古道 on some maps) down to the hot springs. This route is 30 km, climbing 3313 m and dropping 2645 m to arrive at Danda hot springs 丹大溫泉 which is at 1142 m. The CGS site suggests that Danda hot springs has been reduced by siltification recently.

https://en.mapy.cz/s/3oUVO

Hot springs 溫泉

Jianianrui hot springs 加年端 溫泉

http://210.69.81.175/SpringFront/DetailResearchData?springsId=65

加年端 ,位於南投縣信義鄉雙龍村,定位點於(X): 256305 (Y): 2627094 海拔625m。溫泉出露於溪左岩壁。露頭影像照片為林義貴提供。自92年冬季後迄今尚無更新資料。[出露岩性]中新世,廬山層,硬頁岩、板岩、千枚岩(二十五萬分之一臺灣區域地質圖數值檔,臺灣)[微兆區範圍]溫泉露頭位於丹大溪流域

Danda hot springs 丹大 溫泉

http://210.69.81.175/SpringFront/DetailResearchData?springsId=66

丹大 ,位於南投縣信義鄉雙龍村,定位點於(X): 265274 (Y): 2623103 海拔1142m。 丹大溫泉原本的泉溫相當高,有幾近沸滾的溫泉池,部分也冒著氣泡,不過,近年因溪谷砂石堆積影響,露頭已減少,泉溫也混雜溪水而降低。[出露岩性]始新世,畢祿山層(五十萬分之一臺灣區域地質圖數值檔,臺灣2000)[微兆區範圍]位於丹大溪上源卡阿郎溪與丹大東溪交匯處,溫泉露頭綿延約100公尺以上,以卡阿郎溪為主要分布區域。

Map 地圖

March 2015 expeditions - 10 outcrops 露頭, 3 slots

Trip reports 紀錄 from others

丹大溪中段, March 2015

https://www.facebook.com/waxiriver.river/media_set?set=a.957468094264642&type=3

Numerous outcrops discovered along the remote slots of the middle Danda river. 100’s of amazing photos. We later discussed our trip with River Chen.

March 2015 3/21-3/24 - 再訪加年端-圓夢探丹大

Following on River’s trip above, this group traced upstream from Heliuping.

丹大溫泉

http://www.twem.idv.tw/2/a67.htm

Informative, Interesting map, the team applied for their permit in Taipei, which was demanded at the control point at Sanfensuo 三分所 on the Danda road. This post suggests that tracing up the river to reach Danda hot springs 丹大溫泉 is about impossible. Even taking the trail down from the road seems like it was tough.

Danda Forest Road drive, April 2018

丹大林道與七彩湖探勘心得-201804
https://blog.xuite.net/wild.fun/blog/576801467-%E4%B8%B9%E5%A4%A7%E6%9E%97%E9%81%93%E8%88%87%E4%B8%83%E5%BD%A9%E6%B9%96%E6%8E%A2%E5%8B%98%E5%BF%83%E5%BE%97-201804

2018, informative, jeep trip, impressive photography of Danda road

Weather

Forecasts

Nantou County 南投 Xinyi forecast 信義預報

Daylight, Sun 日落日出 (2/28/2019):

Sunrise:              6:18

Sunset:               17:55

Real time weather data

Shuili 水利
https://www.cwb.gov.tw/V7e/observe/real/C0I36.htm

Night-time temperatures

Refer to the CWB Aowanda model for a conservative forecast similar to Danda

Atmospheric temperatures drops an average of 6.5 degrees C per kilometer of altitude.

Jhuoshui River Basin Hydrological Information Center 濁水溪流域水情中心

http://fmcc.wra04.gov.tw/v2/default.aspx

Tropical storm 02W Wutip

http://www.metoc.navy.mil/jtwc/jtwc.html

http://www.metoc.navy.mil/jtwc/products/wp0219prog.txt

WDPN31 PGTW 230300

“The ECMWF, AFUM, and GFS trackers are indicating a sharper turn westward as the system rapidly dissipates.”

WDPN31 PGTW 242100

“Westerlies over the system as well as dry, cold air entrainment associated with a northeast surge event will serve to rapidly weaken the system leading to dissipation by Tau 96.“

Danda River 丹大溪  and watershed

The Danda river 丹大溪 is one of the 12 major tributaries of the Zhuoshui River 濁水溪, Taiwan’s longest river at 186 km.

Tributaries of the Zhuoshui River 濁水

Watershed topography

Annual average rainfall in the Zhuoshui River watershed 濁水溪流域 is 2,200 mm, which decreases moving from the mountains downstream toward the coast. 70% to 85% of the rain falls during the rainy season from May to October, and the flow of the Zhuoshui river gradually decreases from October into the dry season in winter.

Danda river level and watershed rainfall correspondence

River height 水位 (m)

Rain 雨量 (millimeters) last hour/day

Xinyi 信義 rain forecast (avg POP next 24h)

Date/Time

Yufeng bridge 玉峰大橋 1510H063

Baoshi bridge 寶石橋 1510H075

Shuili 水利/水里 C0I36

Qingyun 青雲 C1I150

Kanaituowan 卡奈托灣 C1I140

Danda 丹大 C1I050

02/12 18:40

263.4 m

0 mm

0 %

02/13 09:10

263.5 m

0 mm

0 %

02/15 08:30

263.5

0

20 %

02/17 20:40

263.4

0

10 %

02/18 20:50

263.55 m

346.39 m

0 mm

0 mm

0 mm

0 mm

30 %

02/19 16:20

263.54

346.38

0

10 %

02/20 11:10

263.55

346.37

0

0

0

0

10 %

02/21 16:20

263.95

346.39

0

0

0

0

20 %

02/23 11:00

265.26

346.39

0

0

0

0

70 %

02/24 19:40

265.27

346.4

0.5 mm

1 mm

1.5 mm

2 mm

50 %

02/24 13:20

264.04 m

346.4 m

0.5 / 2.5

1 / 3.5

0 / 2.5

1 / 5.5

30 %

02/24 18:30

264.04

346.42

0.5 / 5.5

0.5/9.5

0 / 7.5

1 / 10.5

20 %

02/24 22:00

264.04

346.43

0 / 6.0

0 / 9.5

0.5 / 10.0

0 / 12.5

20 %

02/24 23:50

264.04

346.43

0 / 6.0

0 / 9.5

0 / 10.0

0 / 12.5

20 %

02/25 07:40

264.04

346.44

0 (6 hrs)

0 (12 h)

0 (6 hrs)

0 (6 h)

10 %

02/25 09:30

264.04

346.43

0 (12 h)

0.5/7.5

0 (12 h)

0 (6 h)

10 %

02/25 14:30

264.02

346.39

0 / 3.5

0 / 6.5

0 / 6

0 / 6.5

0 %

02/25 19:40

264.04

346.4

0 / 0.5

0 / 0.5

0 / 2.5

0 / 1.5

0 %

02/26 06:30

264.04

346.39

0

0 / 0.5

0

0

0 %

02/26 12:20

264.02

346.37

0

0

0

0

0 %

02/26 18:30

264.04

346.37

0

0

0

0

0 %

02/26 23:10

264.04

346.38

0

0

0

0

0 %

02/27 07:20

264.04

346.39

0

0

0

0

0 %

02/27 16:10

264.82

346.38

0

0

0

0

10 %

Data sources:

Hydrological information is collected by the WRA (Water Resources Administration under the MOEA), CWB (Central Weather Bureau, and TPC (Taiwan Power Corporation) but not consistently integrated.

Jhuoshui River Basin Hydrological Information Center 濁水溪流域水情中心

http://fmcc.wra04.gov.tw/v2/default.aspx

River Water level Baoshi bridge 寶石橋 and other nearby sites

Other river level stations

Rainfall measurement in the upstream Danda basin

Other rainfall stations

Danda 丹大 C1I050 station hourly and accumulated rain at 02/24 23:50

Weather Forecasts

Taiwan hydrology data
http://wise.wra.gov.tw/group/721201c1-34c8-4e40-bbfd-444895a7a1a5?organization=river-and-coast-division&organization=hydrology-division

-<RiverCode>

<BasinIdentifier>151000</BasinIdentifier>

<BasinName>濁水溪</BasinName>

<EnglishBasinName>Zhuoshui River</EnglishBasinName>

<EnglishSubsidiaryBasinName>Danda River</EnglishSubsidiaryBasinName>

<SubsidiaryBasinIdentifier>151070</SubsidiaryBasinIdentifier>

<SubsidiaryBasinName>丹大溪</SubsidiaryBasinName>

</RiverCode>

2018 Baoshi bridge 寶石橋 1510H075 Annual Mean Water Levels 平均水位

Itinerary plan

Day 1 - Wednesday 2/27

Drive from Taipei to Heliuping 合流坪 at the end of Highway 16. Leave Taipei at 8:30. Arrive at Heliuping around midnight. Stay at one of the commercial campsites near the end of the road or camp in the river bed.

Driving

3 h 23 min (257 km) via 國道3號

https://goo.gl/maps/dv3arNogVDM2

Camping

Camp 露營 in the river bed a beginning of hike or in a commercial campground at the end of road 16?

https://goo.gl/maps/Ft85zHdhc4n

Breakfast ?

Day 2 - Thursday 2/28

Our maps and data are based on river traces before typhoon Soudelor (August 8, 2015) which certainly impacted the Danda canyon. We will have roughly 4 hours of walking time on Day 1. It would be ambitious to reach the first outcrop recorded in the Spring of 2015 at about 12 km upstream from Heliuping 合流坪. We will pass the Junda stream 郡大溪 confluence to the south, and the path going up to Sanfensuo (3/10ths station) 三分所 on the Danda road 丹大林道 toward the north before arriving at the first Jianianrui 加年端 outcrop.

Junda stream 郡大溪 confluence

23.7608196,121.0442431

The 2015 Burt team took 2 hours to reach the Junda stream 郡大溪 confluence from Heliuping 合流坪.

Old bridge foundation at the confluence

Sanfensuo 三分所 trail

This is one of the few exits from the canyon. The trail climbs up from the river to the 3/10ths check point in the Danda road. The trail climbs steeply 600 m over roughly 1500 m. Trip reports suggest that this trail was difficult to find in 2015, so should only be considered for emergency.

23.746845,121.0632579

23.746845,121.0632579

First outcrop (Sanfensuo 三分所) and basecamp candidate

The 2015 Burt team arrived at the first (Sanfensuo 三分所) outcrop at 12:30, 4 hours out from Heliuping 合流坪.

We should aim to reach the 2nd outcrop just before the first slot canyon for our basecamp to allow us to maximize tracing time on day 2.

The Burt 2015 team got up through the first slots and camped at outcrop 5 where they spent three nights.

If the water levels are similar, all packs would get submerged passing through the first slot section.

Crystalline structures

Attempt to push through first slot canyon to establish basecamp

River explained that the slots can only be passed at minimal water levels and that there are no records of any tracers succeeding since Burts trip. Outcrops 3 and 4 are in the first slot canyon, then outcrops 5 and 6 are in the open area between the first and second slots, where we hope to pitch our basecamp.

Approaching the first canyon, the geology changes

Day 3 - Friday 3/1

Trace upstream toward Danda hot springs with light packs and full tracing gear exploring the many Jianianrui 加年端 outcrops along the way.

Jianianrui hot springs 加年端

First slot canyon

Fourth outcrop

Seventh outcrop

Second slot

Danda suspension bridge

Danda confluence and hot springs area

Return to base camp

Day 4 - Saturday 3/2

Hike back out to Heliuping 合流坪 > Optionally, drive to Double Dragon Waterfalls > Drive back to Taipei

Gear

River tracing

river shoes (must have), wet suit (optional), helmet (recommended), gloves (optional), dry bag (optional), walking stick (recommended), harness (recommended)

Camping

headlight, tent, sleeping bag, mattress

Hiking

rain gear, hat, water

Personal

Shared

stove, cooking pots, ropes, med kit

Folding steel shovel with polycarbonate handle - 941g

(bring, may leave in car.)

Ropes

River tracing gear rental outfits (in Taipei) 溯溪裝備租賃

公館森林 (gear rental)

100台北市中正區汀州路三段81號

Bluepuffy1990.pixnet.net

02 2364 8567

Gear listing: http://bluepuffy1990.pixnet.net/blog/post/13754758

營業時間: 下午2點~晚上8點

Closed Tuesdays and Saturdays

租八借 (gear rental)

電話:(02)2858-2353

營業時間:10:00~20:00 (星期日公休)

地址:台北市士林區文林路581號

http://www.dbk.url.tw/river.htm

(for 2 days) harness: 150, helmet 20...

has more rope and technical gear than Eva (below)

山野悠遊戶外探索團隊 (gear rental)

服務專線 (9:00~20:00): 03-4814662、0916156616 (旭昇)、0981363970 (淑玉)、

信箱: goforwild@gmail.com FACEBOOK

http://www.goforwild.com.tw/rent.php

Eva戶外運動館-台中登山背包露營帳蓬溯溪水上戶外用品出租 (gear rental)

服務時間:14:00-22:00 每週二店休

聯絡人:史依凡 Eva

http://www.eva-sports.url.tw/product_cg79726.html

王子登山戶外滑雪用品 Prince (gear sales)

臺北市南昌路2段112號 1樓

TEL: (02)2368-4358 FAX: (02)2365-5860

http://prince-outdoor.com.tw/

登山友 Tingsaniou (gear sales)

http://www.tingsaniou.com.tw/

背包 · 登山杖 · 睡袋 · 手錶. 品牌經銷點

Ting San Iou Mountain Equipment Co.,

TEL :  02-2311-0089

台北市中山區中山北路一段18.20.22號

Mountain Entry Permit 入山許可證

您的入山申辦序案號108022000167,因禁止入山退件(說明:丹大林道道路損壞未修復尚未開放申請),敬請重新申辦。
如有申辦方面的問題,逕洽南投縣政府警察局(電話049-2234394),服務時段09:00-11:30及14:00-16:30(不含週休及例假日)。

Meals

?

Animals

A survey conducted by the Forestry bureau using trap cameras along Danda road 丹大林道at Sanfan station 三分所 and Lieufan station 六分所 station from Nov. 2012 to Oct. 2013 recorded 2870 photos of game in 41412 hours, including 5 herbivores - sambar deer, muntjac, serow, macaque, and boar;  and 4 carnivores - marten, civet, weasel, and ferret badger. Occurrence was high for sambar deer and muntjac, but low for other game. The survey was used to put forward preservation policy for the area.

A 2004 survey along Danda road 丹大林道 conducted by Taiwan Normal University 台灣師範大學生物系 recorded 38 species of mammals, including 12 protected species:

Formosan black bear 臺灣黑熊 (tái wān hēi xióng) Ursus thibetanus formosanus,

Formosan clouded leopard 臺灣雲豹 (tái wān yún bào) Neofelis nebulosa brachyura, Formosan rock macaque 臺灣獼猴 (tái wān mí hóu) Macaca cyclopis,

Taiwan serow 臺灣野山羊  (tái wān yě shān yáng) Capricornis swinhoei,

Formosan Flying Fox 臺灣狐蝠 (tái wān hú fú) Pteropus dasymallus formosus,

Formosan Sambar Deer 臺灣水鹿 (tái wān shuǐ lù) Rusa unicolor swinhoei,

Yellow-throated marten 黃喉貂 (huáng hóu diāo) Martes flavigula,

Chinese pangolin 穿山甲  (chuān shān jiǎ) Manis pentadactyla,

Crab-eating mongoose 棕簑貓 (zōng suō māo) Herpestes urva,

Leopard cat 石虎 (shí hǔ) Prionailurus bengalensis,

Asian palm civet 麝香貓 (shèxiāng māo) Paradoxurus hermaphroditus,

Reeves's muntjac (Barking deer) 山羌 (shān qiāng) Muntiacus reevesi and

Masked palm civet 白鼻心 (báibí xīn) Paguma larvata;

112 species of birds, 12 amphibians, 28 reptiles and 11 species of fish.

Aborigines

The Danda area was a traditional area of the Bunun people 布農. Two percent of Taiwan’s humans today are non-Han Pacific islanders who lived on the island before Chinese immigrants started arriving over 500 years ago. The Bunun are widely dispersed across the central mountains. In 2000, the Bunun numbered 41,038, approximately 8% of Taiwan's total indigenous population, making them the fourth-largest indigenous group.

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