4. Oregon

Oregon is a state rich in fossil wood with several petrified forests. Oregon wood is often very "woody" in appearance.  Wood from Oregon presents a vast array of colour and variety. Oak is very common. Some of the most desirable Oaks in the world are found in Oregon (Swartz Canyon, Stinking Water, Dechutes River). A Well known paleobotonist once identified 60 different species in one acre of land.

 McDermitt located in Southeast Oregon close to the Nevada border is famous for it's beautiful and well preserved petrified wood (Cherry).

Another famous place for petrified wood are the Sweet Home deposits in the western foothills of the Cascade Mountain range. The wood is often, but not always, well agatized and extremely well preserved. Very unusual is a agate replacement where the tree rotted before being petrified, and the void it left in the ashen earth was slowly filled in with agate.

Grassey Mountain and Hampton Buttes produce colourful wood.  One of the finest and most highly desired petrified wood specimens anywhere are the colourful, glass like Grassey Mountain petrified wood specimens from the Succor Creek area ((Eastern Oregon). This wood is easily the most colourful, most agatized petrified wood found in Oregon and rivals the brilliant colour of Bubbard Basin in Nevada!
The Hampton Butte wood is more jasparized than agatized   and is often more a cast than wood replacement, though exceptions to both of these are certainly found. The logs are more often than not fractured, but the colours are unmatched anywhere else. The dominant colour of Hampton Butte is green.

Sweet Home:

hickory (ca. 100 x 100 mm)

conifer (ca. 110 x 110 mm)

conifer (ca. 120 x 100 mm)

conifer (ca. 150 x 150 mm)

        

Grassey Mountain:
  

unknown (ca. 80 x 90 mm)

ash (ca. 120 x 100 mm)

Swartz Canyon:                Dechutes River:

oak (ca. 80 x 90 mm)

oak (ca. 140 x 100 mm)

  

McDermitt:

ash (ca. 110 x 110 mm)

cherry (ca. 100 x 80 mm)

Sweet Home:

unknown (ca. 80 x 90 mm)

sycamore (ca. 100 x 80 mm)

sycamore (ca. 80 x 80 mm)

        

5. Nevada

Like Arizona, Nevada is well known for the outstanding colour in its wood collected in locations like Hubbard Basin, Cherry Creek and Tuscaora. Hubbard Basin petrified wood is highly prized among fossil and gemstone collectors because of it´s uniquely colour. It´s also some of the best agatized wood be found sometimes even transculent.
Very nice and "woody" looking pieces come from a dig near the Black Rock Desert. The Virgin Valley is famous for the precious opal found here. As a quite unique feature the precious opal from Virgin Valley is often or mostly found with petrified wood. Either the opal fills cracks or openings within the petrified wood or the opal forms a limb cast.