Archives de catégorie : On this day

Selected anniversaries : On this day

October 28: Chetco River

The Chetco River near Boulder Creek, Oregon

The Chetco River is a 56-mile (90 km) long stream located in the southwestern portion of the U.S. state of Oregon. It drains approximately 352 square miles (912 km2) of Curry County. Flowing through a rugged and isolated coastal region, it descends rapidly from about 3,200 feet (975 m) to sea level at the Pacific Ocean. The river’s watershed was originally settled one to three thousand years ago by the Chetco and other Native American tribes. Several explorers, including Sir Francis Drake, George Vancouver, and Jedediah Smith visited the region between the 16th and 19th centuries. European American settlers arrived soon after gold and other precious metals were discovered in the 1840s and 1850s. The watershed remains largely undeveloped, protected by the Rogue River – Siskiyou National Forest and the Kalmiopsis Wilderness. The upper 45 miles (72 km) of the river have been designated Wild and Scenic since October 28, 1988. Supporting a large population of salmon and trout, the Chetco’s water is of very high quality. The watershed is home to many other species, including several that are endemic to the Siskiyou Mountains area. The northernmost grove of Redwoods—the tallest trees on Earth—grow in the southern region of the Chetco’s drainage basin. In total, the river is home to over 200 species of animals, and 97 percent of the watershed is forested. (more…)

Gene Therapy May Cure Depression

Gene therapy may one day be a viable treatment for depression. In a recent study, researchers were able to correct a genetic defect in mice that has been linked to depression in humans. It appears that people with depression have lower levels of the p11 gene in an area of the brain known as the nucleus accumbens. When mice with this same deficiency were injected with a virus modified to restore normal p11 levels, their behavior—which had previously been similar to that of depressed humans—became indistinguishable from that of normal mice.

October 19: Leonard Harrison State Park

Pine Creek Gorge with Pine Creek and Pine Creek Rail Trail, in Tioga County, Pennsylvania

Leonard Harrison State Park is a 585-acre (237 ha) Pennsylvania state park near Wellsboro in Tioga County, Pennsylvania in the United States. It is on the east rim of the 800-foot (240 m) deep Pine Creek Gorge, also known as the Grand Canyon of Pennsylvania, carved by Pine Creek. The park is known for its vistas, hiking, fishing, hunting, whitewater boating, and camping. Native Americans used the Pine Creek Path; later used by lumbermen, it became the course of a railroad from 1883 to 1988, and the 63.4-mile (102.0 km) Pine Creek Rail Trail in 1996. The gorge, named a National Natural Landmark in 1968, is protected as a Pennsylvania State Natural Area and Important Bird Area, while Pine Creek is a state Scenic and Wild River. Although the gorge was clearcut in the 19th and early 20th centuries, it is now covered by second growth forest, thanks in part to the work of the Civilian Conservation Corps in the 1930s. The park is named for Leonard Harrison, a Wellsboro lumberman who cut the timber, then donated the land to the state in 1922. The park attracts hundreds of thousands of visitors each year, and was chosen by the Pennsylvania Department of Conservation and Natural Resources for its « Twenty Must-See Pennsylvania State Parks » list, which praised its « spectacular vistas and a fabulous view of Pine Creek Gorge ». (more…)