1

2 SIERRA DE GUARA

3 What a great excursion!!

4

5 Ebro river

6

7 Situation

8

9 Way

10

11 Karstic landscape

12 Typical relief formations Superficial forms

13 Formas superficiales – Lapiaz o lenar

14 Formas superficiales – Lapiaz o lenar – Dolinas (cubeta, embudo, en ventana)

15 Superficial forms – Lapiaz o lenar – Dolins (cubeta, embudo, en ventana) – Canyons

16 Superficial forms – Lapiaz o lenar – Dolins (cubeta, embudo, en ventana) – Canyons – Simas

17 Superficial forms – Lapiaz o lenar – Dolins (cubeta, embudo, en ventana) – Canyons – Simas – Torcas

18 Internal Forms – Stalactites

19 Internal forms – Stalactites

20 Internal forms – Stalactites – Stalagmites

21 Internal forms – Stalactites – Stalagmites – Columns

22

23 How do the caves form?

24 El funcionamiento de este modelado viene marcado por una reacción química: CaCO 3 +CO 2 + H 2 O 2HCO 3 - + Ca ++. En función de las condiciones se desplaza hacia la izquierda y da estructuras de precipitación o hacia la derecha y origina estructuras de disolución como las simas, torcales o cañones (por ríos) etc.

25

26

27

28 Canyons

29

30

31 Galleries

32

33 Interpretation centre

34

35 Modelling of Sierra de Guara, in The Province of Huesca.

36

37 Alquézar

38 Village of the area of Somontano in Barbastro

39 Alquezar is a village in the area of Somontano- Barbastro in the Province of Huesca. It is situated in the right bank of the Vero river.

40 Municipio de la comarca Somontano de Barbastro, en la Provincia de Huesca. Está situado en la margen derecha del río Vero, en su último cañón, al pie de las sierras de Balcez y Olsón. Alquezar is a village in the area of Somontano- Barbastro in the Province of Huesca. It is situated in the right bank of the Vero river. In the last canyon

41 Alquezar is a village in the area of Somontano- Barbastro in the Province of Huesca. It is situated in the right bank of the Vero river. In the last canyon At the foot of Balced and Olson Mountains

42 Alquezar is a village in the area of Somontano- Barbastro in the Province of Huesca. It is situated in the right bank of the Vero river. In the last canyon At the foot of Balced and Olson Mountains It is 51 km from Huesca

43

44 Parque Natural

45 Nature Reserve

46

47

48

49

50

51

52 Vero river

53

54

55 Biology Department The end