The Historical Educational Trail “Jáchymov Hell”
Heinz’s Pond
You are on the historical educational trail „Jáchymov Hell“, which leads little known, beautiful sites containing unforgettable history. The Nature Trail was created by the mining association “Barbora” in Jáchymov with the support of the Confederation of Political Prisoners and the Club of Czech Tourists.
The Heinz’s Pond, in the background dump of the Edward Shaft
The Heinz’s Pond is another one of water works, built in the 16th century to supply water power to mining operations. From the pond led artificial moat, still evident on the slope of the left bank of the Elias Creek. Very cool, oxygen-rich and nutrient-poor water of the Elias Creek and ponds on it created are populated by relatively poor, but interesting flora and fauna. We can observe shoal of minnows, alpine newt and common frog occur rarely. In the slits of dikes and banks regularly nest dipper and grey wagtail.
White-throated Dipper (photo by Andrew2606 at en.wikipedia)
The White-throated Dipper is about 18 centimeters (7.1 in) long, rotund and short tailed. The head of the adult is brown, the back slate-grey mottled with black, looking black from a distance, and the wings and tail are brown. The throat and upper breast are white, followed by a band of warm chestnut which merges into black on the belly and flanks. The White-throated Dipper is closely associated with swiftly running rivers and streams or the lakes into which these fall. It often perches bobbing spasmodically with its short tail uplifted on the rocks round which the water swirls and tumbles.
Grey Wagtail (photo by J.M.Garg at en.wikipedia)
The Grey Wagtail has a narrow white supercilium and a broken eye ring. The upperparts are grey and the yellow vent contrasting with whitish underparts makes it distinctive. The breeding male has a black throat that is edged by whitish moustachial stripes. They forage singly or in pairs on meadows or on shallow water marshes. They also use rocks in water and will often perch on trees. They have a clear sharp call note and the song consists of trills.
