IdahoSpgsPhoenixVein

MINERAL RESOURCES: Phoenix gold mine, Idaho Springs --- A mineral vein colored blue-green by copper compounds.

DrumsRNDisplays

CATASTROPHE - EARTHQUAKE: National Earthquake Information Center, Golden (west Denver) --- United States Geological Survey center for real-time compilation of the world's earthquakes.

RainbowCurveLawnLakeFloodOutwash

CATASTROPHE - FLOODING: Lawn Lake flood outwash from Rainbow Curve, Rocky Mountain National Park.

Rt139 Landslide

CATASTROPHE - LANDSLIDE: Douglas Pass on Rt.139 north of Grand Junction --- The hummocky ground in the foreground including the lake slid down from the cliff area to the right.

dinowall

Dinosaur fossil graveyard, visitor center, Dinosaur National Monument.

dinosaurs

DinoRdgTracks

Dinosaur trackways, west Denver --- Dinosaur Ridge with trackways in the Dakota sandstone.

dinosaurs footprints

TREX

Tyrannosaurus rex, Denver Museum of Nature and Science.

dinosaurs

Plesiosaur

Plesiosaur skeleton, Denver Museum of Nature and Science --- A marine lizard with a small head, long neck, and powerful paddles for limbs.

MesozoicSeasAmmonites

Ammonite fossils, Denver Museum of Nature and Science --- Fossils of shells related to the still-living chambered nautilus.

cephalopods

073_050604_23Trail14CrinoidsNBrachiopod_903

Crinoid stems, Harpers Corner, Dinosaur National Monument.

DinoRdgTraceFossils

Burrows, Dinosaur Ridge, west Denver --- These tubes are assumed to be traces of animals that formed burrows on the surface of underwater sediment.

bioturbation

FlorissantPetrifiedTree

Upright petrified tree stump, Florissant National Monument.