Freestone · Granite · Zhejiang, CN

Huyuan Stream 壶源溪

Huyuan Stream 壶源溪 terrain map

A hill stream running down from Huyuan township to Chang'an in the Fuyang district of Hangzhou, and on into Zhuji.

Poor · Makou
Pheasant Tail Nymph · Hook 16–20, unweighted
Poorlive now
Not the day for it
Low and clear — careful approach country. A morning for the obvious fish only.
50% confidence
What moved it
  • LevelLight rain recentlyNo gauge reading
  • Water temp12.2°C
  • ClarityClear
Today's fly
Pheasant Tail Nymph
Pheasant Tail NymphHook 16–20, unweighted
in season · matches water height
Conditions on the water
Estimate
Level
Light rain recently
No gauge reading
Water temp12.2°C
ClarityClear
Weather25°C
WindS 10 km/h
Pressure1019 hPa
Rain · recent3.5 mm
Rain · ahead0.3 mm

No gauge on this water — readings are regional estimates from weather, not a live gauge.

Water temperature for Makou
Too cold
12°C est.ideal 20–26°C
0°14°28°
How to fish it · for Makou
When
May to October, the local golden season for stream fishing / 5月至10月，当地公认的溪钓黄金期
Where
A hill stream running down from Huyuan township to Chang'an in the Fuyang district of Hangzhou, and on into Zhuji.
Why this works
Very poor — water clarity is working for you, but water temperature is the limiting factor today.
Sub-surface · on the nymphunder the surface

Hatch predictions

Supporters see the full sub-surface read.

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Evidence
Records-basedModerate confidence

Based on species-occurrence records, not local invertebrate surveys.

Ranked for today
Makou fly box
Permits & access
Permit required — see local rules.
  • Both counties it runs through publish the same rule: 壶源江（壶源溪）is closed 1 March – 30 June to every method EXCEPT 娱乐性游钓 — recreational angling is explicitly exempt, so this water is effectively fishable year-round
  • Zhejiang's own guidance adds one rod, one line, no more than two hook points, and names its no-angling zones as cross-river bridges and Grade 1 drinking-water source protection areas
  • No germplasm reserve or water-source designation was found on this stream, but confirm locally
What's coming
Plan ahead
5-day outlook
Other water nearby · 3
Luzhu River 渌渚江
18 km
0
Makou
Gexi 葛溪
28 km
0
Makou
Fenshui River 分水江
30 km
0
Makou
About this water

A hill stream running down from Huyuan township to Chang'an in the Fuyang district of Hangzhou, and on into Zhuji. A Hangzhou paper profiled a local angler on it in August 2026 who calls it the ceiling among the city's streams — stone shoals every few hundred metres, clear water, and the freedom to wade in wherever you like. It holds 溪石斑, 宽鳍鱲, 长鳍鱲 and 马口, with mandarin fish now and then, and it fishes from May to October. It is the only wild Chinese river in this pack whose quarry is entirely unprotected, which after Sichuan, Yunnan and the Altai is the rarer thing. / 壶源溪自杭州市富阳区湖源乡而下，流经常安镇，再入诸暨。2026年8月杭州媒体曾报道一位常来此溪的钓者，他称其为「大杭州这些溪流」中的天花板——每隔数百米一片石滩，水质清澈，随处可以下水。溪中有溪石斑、宽鳍鱲、长鳍鱲与马口，偶尔可遇鳜鱼，钓季自5月至10月。本册所收的中国野外河流中，唯有此处对象鱼完全不涉保护物种；在四川、云南与阿尔泰之后，这一点反而更为难得。

Under the surface

A clear hill stream south-west of Hangzhou, running over pale stone shoals that repeat every few hundred metres from Huyuan down to Chang'an. You can step in almost anywhere. The fish are small, native and quick, and the season is the warm half of the year. / 杭州西南的一条清澈山溪，自湖源乡而下至常安镇，每隔数百米便是一片洁净的石滩，几乎处处可以下水。鱼小、原生、机敏，钓季在一年中温暖的那一半。

Wading: Flashy summer spates, slippery stone, monsoon rain

  • River
  • Granite
  • Confined
  • Riffle
  • Pool riffle
Conservation note

⭐ None of these fish is protected, which is what makes this water unusual in China. 马口 (*Opsariichthys bidens*) is now **scored** — the first Asian cyprinid with an engine profile, riding the flow-cyprinid lane on aquaculture-derived thermal bands (ideal 20–26°C). 溪石斑 (光唇鱼, *Acrossocheilus*), 宽鳍鱲 and 长鳍鱲 (*Zacco*) and the occasional 鳜鱼 (mandarin fish) remain prose-only: they have no profile of their own, and borrowing makou's — let alone the European `barbel` curve — would be the false precision this pack refuses. / ⭐ 此处鱼种均非保护物种，这在中国颇为难得。马口（*Opsariichthys bidens*）现已纳入计分——它是首个具备引擎模型的亚洲鲤科鱼类，使用流水鲤科通道与源自养殖文献的温度区间（最适20–26℃）。溪石斑（光唇鱼）、宽鳍鱲、长鳍鱲及偶见的鳜鱼仍仅作文字说明：它们没有各自的模型，若套用马口的模型（更遑论欧洲鲃鱼的温度曲线），正是本册所拒绝的伪精确。

The full read · show the working · for Makou · confidence 50%
How the 0 is built — score × weight = contribution
Temperature0 × 30%0.0
Flow60 × 25%15.0
Clarity95 × 20%19.0
Feeding Time40 × 15%6.0
Pressure75 × 10%7.5
Limiting factor: Water temperature (12.2°C) is outside Makou's preferred range (20–26°C)= 48
Can you trust it?
Water temperatureair-to-water estimateestimated
Level / flowon-river gaugeobserved
Prey activitymodelled from regional profilemodelled
What would change the calculation
Warmer water — toward the 20–26 °C ideal band — would lift the temperature score.
The dawn and dusk windows score higher than the midday lull.
Related guides
Euro Nymphingsubsurface methods
Booking & contacts