|
November 7, 1999
The next day (11-7) I
headed west along I-40 to Petrified
Forest National Park. Once there, I rode from one end to the other (about 28 miles),
then exited at the south end about 20 miles from the town of Holbrook. |
Click on thumbnails. 
 |
Petrified
Forest is really two parks in one. The northern end contains a large section of the
Painted Desert, which then stretches northwest toward Grand Canyon. The Painted Desert is
a rugged badlands type of desert landscape that has been painted in beautiful hues of red,
pink, blue, purple, white, gray and black by that most exceptional of artists
Mother Nature. The colors come from the chemical composition of the sediments that formed
the rocks. Iron oxides create the red and pink tones; manganese produces blue and purple;
various carbons produce black, white and gray. There are several overlooks in this section
of the park, all with great views of this colorful landscape. |
Heading
south from the last of the overlooks, there is a long, narrow corridor of parkland that
passes over I-40 and the Santa Fe Railroad before entering a butte and mesa area where the
petrified forests lie scattered and silent. Theyre rocks now, mostly quartz, but 225
million years ago (late Triassic Period) stood tall as Araucarioxylon,
Woodworthia and Schilderia trees. In the time of a great flood, the trees fell and
were washed by swollen streams onto a floodplain. There they were quickly covered by silt,
mud and volcanic ash, which cut off oxygen and slowed decay of the trees. Gradually,
silica-bearing groundwater seeped through the logs and, bit by bit, replaced the wood
tissue with silica deposits. Eventually, the silica crystallized into quartz, and the logs
were preserved as petrified wood. Later, the entire area sank and was covered by
freshwater sediments, then rose again, only to be exposed to the forces of erosion that
have now uncovered the logs we see today in this National Park. There is also still much
more below the surface - up to 300 feet of fossil bearing material remains in some areas
of the park.
Click on thumbnails to
see full photographs.
|
After
this area was "discovered" by Army surveyors in the mid-1800s, the petrified
wood became "easy pickings" for local farmers and ranchers, as well as
sightseers from back east. Soon, however, area residents realized that the supply of
petrified wood was not endless, and began to petition the government to do something to
protect what remained. John Muir, who discovered fossil bones here in the winter of
1905/1906, was one of those who helped convince President Theodore Roosevelt to preserve
the area as a National Monument in 1906. In 1932, 2500 acres of the Painted Desert were
purchased and added to the Monument, and in 1962 it became Petrified Forest National Park.
Click on thumbnail.
|
At the museum, I found the
bones of a Placerias, a 2 to 3 ton mammal-like reptile that roamed the area in herds about
225 million years ago. |
From the south
entrance to the park, I headed west along US Highway 180, the same way Dad, Mom, Dave and
I traveled 35 years ago. I have retained two distinct impressions of this portion of our
1964 trip. First, it must have been late in the day when we left the Petrified Forest
because we ended up pulling off to the side of Rt. 180 and camping there for the night. I
saw lots of potential "pull off" spots, so all I know is that I passed the spot
where we camped for the night. My second recollection is of a brown building in downtown
Holbrook where we had breakfast the next morning. I recall seeing a Trailways Bus for the
first time in front of that building. Today, as I rode through Holbrook heading for my
campground, Im pretty sure that I saw the same building.
The National Park Service is
getting serious about protecting its remaining petrified wood resources from amateur
thieves who think its okay to stick a piece in the pocket and take it home. Each
visitor now gets a piece of paper with their park brochure that explains the seriousness
of the problem, advises the illegality of taking anything from the park, and announces a
fine of $250 for doing so. They also promote a program based on the "turn in a (drug)
pusher" concept. This one is "turn in a wood thief". You would like to
think that people would just know better, but they dont. Besides, anyone who wants a
piece of petrified wood can buy one from several sources right outside the park
boundaries.
| Click on thumbnail. 
|
After what I said recently
about counting road-kill for the weird people at the home station, I was afraid Becky and
Ria wouldnt believe that Im taking this task seriously. So here is
photographic evidence that Im doing my job. I picked one that the ravens hadnt
found yet, so it wouldnt be gross |
|


Copyright ©
1999 - 2000 PBS 45 & 49
All rights reserved.
E-mail questions or comments to web editor, webmaster@wneo.pbs.org
This page was last updated on 01/29/02.
|