Normally, the dura mater is attached to the skull, in the spinal cord, the dura mater is separated from the bone (vertebrae) by a space called the epidural space, which contain fat and blood vessels.The arachnoid is attached to the dura mater, while the pia mater is attached to the central nervous system tissue.he dura mater, the outermost part, is a loosely arranged, fibroelastic layer of cells, characterized by multiple interdigitating cell processes, no extracellular collagen, and significant extracellular spaces. The middle region is a mostly fibrous portion.
The fictional Cartwright family lived on the Ponderosa Ranch at Lake Tahoe, and parts of Bonanza were filmed on its shores. The famous opening scene of Bonanza was filmed on location at North Lake Tahoe near Incline Village, and Lake Tahoe was among the outdoor locations used to film the weekly episodes.
Bonanza is at an elevation of 4,127 feet (1,258 m) in southern Klamath County near the Oregonâ California border. The city is at the east end of Oregon Route 70, a spur off Oregon Route 140. By highway, Bonanza is about 21 miles (34 km) from Klamath Falls and 300 miles (483 km) from Portland.