Source: University Of Colorado At Boulder Date: 2003-10-08 Prehistoric Footpaths In Costa Rica Indicate Intimate Ties With Villages, Cemeteries New findings by the University of Colorado at Boulder indicate tiny footpaths traveled by Costa Rican people 1,500 years ago were precursors to wide, deep and ritualistic roadways 500 years later leading to and from cemeteries and villages. During the past two years, a team of graduate students, NASA archaeologists and remote sensing specialists led by Professor Payson Sheets spent much of their time mapping the small footpaths, many of which are invisible on the ground but visible by satellites. The...