Petroglyph National Monument, Albuquerque.

Petroglyph National Monument, Albuquerque, New Mexico. Photo: Greg K. Hull © Chasing Light Media via Cool Adventures.
Wiki tells:

Petroglyph National Monument protects a variety of cultural and natural resources including five volcanic cones, hundreds of archeological sites and an estimated 24,000 images carved by Ancestral Pueblo peoples and early Spanish settlers. Many of the images are recognizable as animals, people, brands and crosses; others are more complex. Their meaning was, possibly, understood only by the carver.

Other notable circles:

• N. P. Service, New Area of Report: Study of Alternatives: Albuquerque West Mesa Petroglyph Study, New Mexico
  [Bibtex]

  @Book{newareaofreports00nati,
    author      = {{National Park Service}},
    title       = {New Area of Report: Study of Alternatives: Albuquerque West Mesa Petroglyph Study, New Mexico},
    date        = {1988},
    editora     = {{Clemson University Libraries}},
    pagetotal   = {76},
    url         = {http://archive.org/details/newareaofreports00nati},
    urldate     = {2016-08-03},
    editoratype = {collaborator},
    file        = {newareaofreports00nati.pdf:media/trismegisto/Vitamin/Documents/Bibliography/newareaofreports00nati.pdf:PDF},
    owner       = {trismegisto},
    shorttitle  = {New Area of Report},
    timestamp   = {2016-08-04},
  }

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