Cueva de El Castillo, Puente Viesgo, Spain Panel of Hands, photo: Pedro Saura Cueva de El Castillo, Panel of Hands, photo: Pedro Saura Cueva de El Castillo, Corridor of Disks, photo: Pedro Saura Hologram, Museo Nacional de Altamira, Santillana del Mar, Spain, photo: Estudio Nómada Inside Conellante, Matienzo, Spain, 2010, photo: Randee Silv El Pendo, entrance, 2010, photo: Randee Silv Pech Merle, Cabrerets, France, photo: Steve Errede, Dept. of Physics, University of Illinois Airbrushing, photo: Don Hitchcock, Don's Maps Finger Flutings, Grotte de Rouffignac, France, photo: Kevin Sharpe & Leslie Van Gelder Untitled, Alice Rahon, 1945, watercolor, 10 x 8», photo: Creighton - Davis GallerY L'Enclume, Wolfgang Paalen, 1952, oil & fumage, 53 x 74», photo: Artsy.net Message, No. 8, Mathias Goeritz, 1959, gold paint, perforated steel, pushpins on board, photo: Arevalo Gallery Conference Poster 1950, Willi Baumeister, Centro de Arte Riena Sofia, Madrid, photo: Randee Silv Altamira, Joan Miró, 1958, lithograph, photo: Quittenbaum Auction
House, Munich Joan Miró & Josep Llorens Artigas, Altamira, 1957, photo: Fundación Botín, Santander, Spain Patterns of Aranjuez, 1955, N. H. Stubbing, oil on canvas, 78 x 69 ″, photo: England & Co, London Cave of
Black, Herman Cherry, 1954,
enamel / coffee grinds on canvas, 61 x49 ″, David Findlay Gallery, photo: Randee Silv Untitled, Denny Winters, 1982, photo: Gamage Auction
House, Rockland, Maine Before the Caves, Helen Frankenthaler, 1958, oil on unprimed canvas, 102 x 104 ″, photo: Berkeley Art Museum The Homely Protestant, Robert Motherwell, 1946, oil on masonite, 98 X 48 ″, photo: Metropolitian Museum Cave Study (Perigord Region), Elaine de Kooning 1983, segment, photo: Artvalue.com Lascaux Cave, France, closeup of Megalaceros section, photo: Wikimedia commons Untitled 1963, David Smith, spray
enamel on paper, 14 x 19 ″, photo: David Smith Estate Chauvet Cave, Vallon - Pont - d'Arc, France, photo: Dr. Jean Clottes Exhibition poster, Miguel Barceló, Institut Valencià d'Art Modern, 1995 photo: Michel Fillon Gallery, Paris Stages of Trance, photo: David Lewis - Williams, Inside the Neolithic Mind Pareidolia, Conellante Cave, 2010, Matienzo, Spain, photo: Randee Silv Blackness, Conellante Cave, 2010, Matienzo, Spain, photo: Randee Silv