Paleontological Investigations No description specified. 1-1 (1 Record) Documents Paleontological Review, Survey and Report of the Denver Metro Backbone Routes 2, 3, and 4 of the Fiber Optic Line Along I-225 from I-70 to Lincoln, Along Lincoln to I-25 Along 1-25 to Metro Denver Adams, Arapahoe, Denver and Douglas Counties, Colorado (2000)