In geomorphology, an erg is a large desert region of sand dunes with little or no vegetation. It is divided into 3 parts: back erg, central erg, fore erg, especially in the Sahara. This is a list of ergss around the world.

Africa

1. Algeria

2. Grand Erg Oriental (extends into Tunisia)

3. Grand Erg Occidental

4. Erg Chech (extends into Mali and Mauritania)

5. Erg Iguidi (extends into Mauritania)

6. Erg Issaouane

7. Erg er-Raoui

8. Erg Tifferine

9. Erg Tidohaine

10. Erg Merhiti

11. Erg Admer

12. Botswana

13. Kalahari Desert

14. Chad

15. Erg Djourab

16. Erg Idrisi

17. Egypt

18. Black Desert

19. Erg Abunugar

20. Erg Abu Muharrik

21. Erg Abu Ramada

22. Gilf Kebir

23. Ramla el Kebir

24. Erg Somaya

25. Negev Desert (extends into Israel)

26. Great Sand Sea Desert

27. White Desert

28. Libya

29. Erg Awbari

30. Erg Ubari

31. Erg Titersine

32. Erg Idehan Murzuq

33. Erg Ouan Kasa

34. Erg Tannezouft

35. Erg Takarkouri

36. Erg Mehedjibat

37. Erg Tassegefit

38. Calanshio Sand Sea

39. Rebiana Sand Sea

40. Mali

41. Erg Achaif

42. Erg Aoukar (extends into Mauritania)

43. Erg Atouila

44. Erg Outouila

45. Mauritania

46. Erg Amatlich

47. Erg Aoukar

48. Erg Akchar

49. Erg Azefal (extends into Western Sahara)

50. Erg Taokest

51. Morocco

52. Erg Chebbi

53. Erg Chigaga

54. Erg Znaigui

55. Erg Tinfou

56. Erg Ezzahar

57. Erg Lihoudi

58. Erg Mghiti

59. Erg Smar

60. Erg Jerboia

61. Erg Zemoul

62. Namibia

63. Namib Desert

64. Niger

65. Jadal

66. Erg Brousset

67. Ténéré

68. Tafassasset

69. Great Bilma Erg or 'Kaouar' (extends into Chad)

70. Sudan

71. Erg Selima

72. Western Sahara

73. Erg Azefal

Asia

1. China

2. Taklamakan, Xinjiang

3. Dzungaria, Xinjiang

4. Tengger Desert, Ningxia

5. Ordos Desert, Inner Mongolia

6. Iran

7. Dasht-e Lut

8. India

9. Thar Desert

10. Nubra Valley

11. Kazakhstan

12. Moin Kum

13. Kyzyl Kum (extends into Uzbekistan and Turkmenistan)

14. Mongolia

15. Nomin Mingan Gobi

16. Pakistan

17. Cholistan Desert

18. Kharan Desert

19. Saudi Arabia

20. Rub' al Khali

21. Dahna

22. Great Nefud

23. Jafurah

24. Nefud Es Sirr

25. Nefud Eth Thuwairat

26. Nefud Shudaiah

27. Turkmenistan

28. Karakum Desert

29. Turan

30. Zaunguz

Australia

• Gibson Desert

• Great Sandy Desert

• Great Victoria Desert

• Simpson Desert

North America

1. Mexico

2. Gran Desierto de Altar, Sonora

3. Samalayuca Dune Fields, Chihuahua

4. United States

5. Algodones Dunes, California

6. Great Sand Dunes National Park and Preserve, Colorado

7. Navajo Sandstone (former Jurassic age erg has since formed sandstone)

8. Nebraska Sandhills, Nebraska (active 800-1000 years ago, now vegetated)

9. White Sands National Park, New Mexico

10. Yuma Desert, Arizona

South America

1. Chile

2. Atacama Desert

3. Peru

4. Great Ica Desert

References