Klamath Mountains animal species, including black bears, large cats, owls, eagles, and several species of Pacific salmon. Millions of acres in the mountains are managed by the United States Forest Service. The northernmost and largest sub-range of the Klamath Mountains are the Siskiyou Mountains. Physiographically, the Klamath Mountains include the Siskiyou Mountains, the Marble Mountains, the Scott Mountains, the Trinity Mountains, the Trinity Alps, the Salmon Mountains, and the northern Yolla-Bolly Mountains. They are a section of the larger Pacific Border province, which in turn is part of the Pacific Mountain System (Pacific Coast Ranges) physiographic division. These are the ten highest
Howell Mountains such as the Howell Mountains and Mt. George Range that have more northerly derivations have become more popular. The fact that none of these names are recognized by the United States Geographical Survey means that the range has no official designation. Howell Mountain is named after John Howell, who, with a partner in 1856, opened at St. Helena the first blacksmith shop in Napa County. Howell Mountains was ultimately applied as well to the peaks to the south that separate Napa Valley from Suisun Valley. For example, Kunkel and Upson (1960) identify the Howell Mountains in their report on the