245 04|a The secret canyon.

260 __|a Alexandria, VA : |b PBS, |c 2005.

490 1_|a Frontiers.

500 __|a Copyright permission expires 08/17/08.

500 __|a Title from web site description.

511 0_|a Hosted by Alan Alda.

520 __|a The best-kept secret of American archeology is now revealed - an entire canyon of perfectly preserved 1,000-year-old remains. Who were these people - and where did they come from? 30 minutes.

521 __|a Middle school to adult.

546 __|a Closed captioned for the hearing impaired.

650 _0|a Human remains (Archaeology).

650 _0|a Excavations (Archaeology).

700 1_|a Alda, Alan, |d 1936-

710 2_|a Chedd-Angier Production Company

710 2_|a Connecticut Public Television

710 2_|a PBS

710 2_|a Scientific American, inc.

830 _0|a Scientific American frontiers (Series)

856 42|a http://www.pbs.org/saf/