Central Pacific
Lake Manly: Death Valley, Ancient Footpath, from Nevares Springs to the Lake
Carson and Colorado
Denver South Park and Pacific
Lake Cahuilla: Coachella Valley, Fish Traps along the Edge of the Last Shoreline
Lake Panamint: Panamint Valley, Prehistoric Rock Alignment (Wildrose East Site 2.6)
Chocolate Mountains: A Ceremonial Trail, on an Ancient Terrace
Southern Pacific (Siding)
, 1993
, 1996
, 1997
, 1998
, 2000
, 2001
, 2004
