A geoglyph is a large design or motif (generally longer than 4 metres) produced on the ground by durable elements of the landscape, such as stones, stone fragments, gravel, or earth. A positive geoglyph is formed by the arrangement and alignment of materials on the ground in a manner akin to petroforms, while a negative geoglyph is formed by removing part of the natural ground surface to create differently coloured or textured ground in a manner akin to petroglyphs.

Geoglyphs on deforested land in the Amazon rainforest

Geoglyphs are generally a type of land art, and sometimes rock art. A hill figure is created on a slope, so that it can be seen from a distance.

AncientEdit

 
The prehistoric English hill figure of the Uffington White Horse

Perhaps the most famous geoglyphs are the Nazca lines in Peru. The cultural significance of these geoglyphs for their creators remains unclear, despite many hypotheses.[1] The "Works of the Old Men" in Arabia, "stone-built structures that are far more numerous than (the) Nazca Lines, far more extensive in the area that they cover, and far older,"[2] have been described as geoglyphs by Amelia Sparavigna, a physics professor at Politecnico di Torino in Italy.[3] The use of this term to describe these features is probably inaccurate, as recent research has shown that most were not constructed primarily as art, but were rather built to serve a range of purposes including burial sites and funerary customs, aiding in the trapping of migratory animals, and as cleared areas for camps, houses and animal enclosures.[4]

 
The Nazca Lines in Peru. This photograph shows a depiction of a hummingbird

Since the 1970s, numerous geoglyphs have been discovered on deforested land in the Amazon rainforest, Brazil, leading to claims about Pre-Columbian civilizations.[5][6][7] Ondemar Dias is accredited with first discovering the geoglyphs in 1977 and Alceu Ranzi with furthering their discovery after flying over Acre.[8][9]

Other areas with geoglyphs include Megaliths in the Urals, South Australia (Marree Man, which is not ancient, but rather a modern work of art, with mysterious origins), Western Australia and parts of the Great Basin Desert in the southwestern United States. Hill figures, turf mazes and the stone-lined labyrinths of Scandinavia, Iceland, Lappland and the former Soviet Union are types of geoglyphs.

The south of England has a number of equine and human figures cut into chalk hillsides. Examples include the Uffington White Horse, Cerne Abbas Giant, Westbury White Horse, and the Long Man of Wilmington. Some are ancient, others from the last few centuries.

More than 50 geoglyphs are found in Kazakhstan.[10]

ContemporaryEdit

 
Bunjil geoglyph at the You Yangs, Lara, Australia, by Andrew Rogers. The creature has a wingspan of 100 metres and 1,500 tonnes of rock were used to construct it.

Not all geoglyphs are ancient. The Land Art movement created many new geoglyphs as well as other structures; perhaps the most famous example is Spiral Jetty by Robert Smithson. Many towns and cities in the Western United States use hillside letters (also known as "mountain monograms") on the hills above their locations. Contemporary Australian sculptor Andrew Rogers has created geoglyphs around the world called "The Rhythms of Life". You Yangs Regional Park is the home of a geoglyph constructed by Rogers in recognition of the indigenous people of the area. It depicts Bunjil, a mythical creature in the culture of the local Wautharong Aboriginal people.[citation needed]

 
Portrait of Genghis Khan painted onto cleared areas of Mt. Bogd Khan in Mongolia in 2006.

Geoglyphic texts and images are common in Central and Inner Asia but there has been little systematic study of their origins and spread.

More recent figures in the south of England created since the early 1800s have kept up the region's ancient tradition of chalk hillside figures. Examples of these are the Litlington White Horse, Devizes White Horse, Fovant Badges, Cherhill White Horse, and the Marlborough White Horse.

In 2008–2009 Alfie Dennen created Britglyph, a locative art-focused geoglyph created by having participants across the United Kingdom leave rocks at highly specific locations and uploading media created at each location. When taken together and viewed on the main project website an image of a watch and chain inspired by John Harrison's marine chronometer H5 was created.[11]

People have used the Strava mobile app to create Strava art, virtual geoglyphs.

Geoglyphs in the worldEdit

Country Geoglyph
  Israel Geoglyphs of Har Karkom[12]
  England Uffington White Horse
Westbury White Horse
Cerne Abbas Giant
Long Man of Wilmington
Pewsey White Horse
Litlington White Horse
  United States Gila River Valley
Great Serpent Mound
Blythe Intaglios
  Peru Nazca Lines
Paracas Candelabra
  Brazil Acre Geoglyphs
  Chile Atacama Giant
  Bolivia Sajama Lines
  Australia Marree Man
Readymix logo geoglyph
Bunjil Geoglyph
  India Great Indian Desert Lines, (also known as the Boha geoglyphs), Rajasthan

Largest GeoglyphEdit

In the Thar Desert of Rajasthan, India, researchers discovered the world's largest man-made sketch or geoglyph. It is larger than the Nazca Lines in Peru.

It is a massive spiral artwork in at Boha hamlet, close to Jaisalmer, that spans over 1,00,000 square metres. A sequence of geoglyphs were used to create the spiral artwork. Carlo and Uohann Oetheimer of France were the first to see it on Google Earth.

The authors conducted field research on the formations, close to Boha village. There, they found a succession of concentric and linear structures. These features were given the name Boha geoglyphs, also known as the Great Indian Desert Lines. They estimate that the geoglyphs are around 150 years old.[13][14]

See alsoEdit

ReferencesEdit

  1. ^ New Technologies for Archaeology: Multidisciplinary Investigations in Palpa and Nasca, Peru, Natural science in archaeology, page 50, Markus Reindel, Günther A. Wagner, Springer Verlag, 2009. ISBN 978-3-540-87437-9
  2. ^ Professor David Kennedy, quoted by Owen Jarus, LiveScience Contributor. "Visible Only From Above, Mystifying 'Nazca Lines' Discovered in Mideast", NBC News (via LiveScience), 9/15/2011
  3. ^ Amelia Sparavigna, quoted by Owen Jarus, LiveScience Contributor. "Visible Only From Above, Mystifying 'Nazca Lines' Discovered in Mideast", NBC News (via LiveScience), 9/15/2011
  4. ^ Kennedy, David (2011). "The "Works of the Old Men" in Arabia: remote sensing in interior Arabia". Journal of Archaeological Science. 38 (12): 3185–3203. doi:10.1016/j.jas.2011.05.027.
  5. ^ Simon Romero (January 14, 2012). "Once Hidden by Forest, Carvings in Land Attest to Amazon's Lost World". The New York Times.
  6. ^ Amazon Jungle geoglyphs in Portuguese
  7. ^ Martti Pärssinen, Denise Schaan and Alceu Ranzi (2009). "Pre-Columbian geometric earthworks in the upper Purús: a complex society in western Amazonia". Antiquity. 83 (322): 1084–1095. doi:10.1017/s0003598x00099373.
  8. ^ Junior, Gonçalo (October 2008). "Amazonia lost and found". Pesquisa (ed.220). FAPESP. Archived from the original on 2014-08-12.
  9. ^ "Unnatural Histories – Amazon". BBC Four.
  10. ^ "Mysterious Ancient Geoglyphs Discovered In Kazakhstan Leave Archeologists Perplexed". IFLScience.
  11. ^ Dennen, Alfie (2009-03-11). "Britglyph". Moblog. Archived from the original on 2008-12-18. Retrieved 2009-03-17.
  12. ^ "The geoglyphs of Har Karkom (Negev, Israel): classification and interpretation" (PDF). ccsp.it. Retrieved 30 July 2018.
  13. ^ Pacha, Aswathi (2021-06-03). "New geometrical lines discovered in Thar Desert". The Hindu. ISSN 0971-751X. Retrieved 2021-06-17.
  14. ^ "Google Earth reveals the world's largest geoglyph". California News Times. 2021-06-16. Retrieved 2021-06-17.

Further readingEdit

External linksEdit