The Shasta-Trinity

The Shasta and Trinity Forest Reserves were established by President Theodore Roosevelt’s proclamations in 1905. The forests combined administratively in 1954 and officially became the Shasta-Trinity National Forest (Shasta-Trinity or SHF).

The Shasta-Trinity, the largest in California, encompasses 2.1 million acres with over 6,278 miles of streams and rivers. It ranges in elevation from 1,000 feet (Shasta Lake general area) to Mt. Shasta with an elevation of 14,162 feet. The forest includes portions of Castle Crags, Chanchellulla, Mount Shasta, Trinity Alps and Yolla Bolly-Middle Eel Wilderness Areas. The main branch of the Trinity River, which is a designated Wild and Scenic River, runs through the forest. The forest lies within the

Precipitation normally comes during fall, winter and spring seasons, and it is typical to receive little or no precipitation for 4 to 6 months during the summer. With favorable growing conditions, vegetation readily accumulates, while decomposition is limited to t relatively short period of the year. Long, dry periods, coupled with thunderstorms, low relative humidity, and strong winds are conducive to fire occurrence and prolonged fire seasons.
Six Rivers National Forest
President Harry S. Truman established the Six Rivers National Forest (Six Rivers or SRF) by Presidential proclamation on June 3, 1947. The forest is named for the six major rivers that run within its boundaries: the Smith, Klamath, Trinity, Mad, Van Duzen, and Eel.

The Six Rivers is a long, narrow piece of mountainous terrain that stretches nearly 140 miles from the Oregon border south to Mendocino County. Gasquet Ranger District/Smith River National Recreation Area and Orleans, Lower Trinity, and Mad River Ranger Districts make up the Forest. Six Rivers manages 957,590 National Forest acres and 133,410 acres of the Ukonom Ranger District of the Klamath National Forest. The Forest lies in Del Norte, Humboldt, Trinity, and Siskiyou

Elevations range from nearly sea level to approximately 7,000 feet. The Six Rivers shares management of the Siskiyou, Trinity Alps, Yolla-Bolly, and Marble Mountain wilderness areas with nearby national forests, and has sole responsibility for the North Fork Wilderness. The Smith, Klamath, Trinity and Eel River contain over 365 miles of designated Wild and Scenic River. The Salmon River in the Ukonom Ranger District is also a Wild and Scenic