Singingstone48:
1990 K-T boundary clay near Madrid, west of Trinidad, Colorado
Singingstone48:
1995 K-T boundary clay
Singingstone48:
1997 K-T boundary clay
Singingstone48:
1999 K-T boundary clay
Singingstone48:
2004 K-T boundary clay-2
Singingstone48:
2007 Fossil rush from the Tertiary
Singingstone48:
2010 Massive crevasse splay ss
Singingstone48:
2015 boundary layer and massive sandstone above
Singingstone48:
2017 plant fossils above the KT boundary layer, Madrid, CO
Singingstone48:
2019 K-T boundary outcrop
Singingstone48:
1989 Overbank sand on coal deposit
Singingstone48:
1987 Overbank sand on coal deposit
Singingstone48:
1986 Overbank sand on coal deposit
Singingstone48:
1985 Overbank sand on coal deposit
Singingstone48:
1980 coal measures in outcrop
Singingstone48:
1979 fossilized log in outcrop
Singingstone48:
1977 Coal in outcrop RT 12
Singingstone48:
1976 Coal in outcrop RT 12
Singingstone48:
1975 Coal in outcrop RT 12
Singingstone48:
1973 Coal in outcrop RT 12
Singingstone48:
1971 Coal in outcrop RT 12
Singingstone48:
1969 Coal in outcrop RT 12
Singingstone48:
5176 BC of G NP
Singingstone48:
5178 BC of G NP
Singingstone48:
5184 BC of G NP
Singingstone48:
5198 BC of G NP
Singingstone48:
5211BC of G NP
Singingstone48:
9596_Clear Creek Canyon - rock wall
Singingstone48:
9615_Clear Creek Canyon
Singingstone48:
9616_Clear Creek Canyon
