US Forest Service - Mendocino National Forest (CA)

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US Forests in California:

Angeles Inyo Lassen Modoc Sequoia Six Rivers
Cleveland Klamath Los Padres Plumas Shasta-Trinity Stanislaus
Eldorado Lake Tahoe BMU Mendocino San Bernardino Sierra Tahoe

Mendocino National Forest (MNF - Forest #08) "Mendocino" KMB 7-1-0

The 913,306 acre Mendocino National Forest straddles the eastern spur of the Coastal Mountain Range in northwestern California, just a three hour drive north of San Francisco and Sacramento. It is 65 miles long, 35 miles across and is 913,306 acres in size. First set aside as a "forest reserve" by President Roosevelt on February 6,1907, it was originally named the Stony Creek Forest Reserve and later the California National Forest on July 1, 1908. This designation proved to be confusing with relation to the state itself, and President Herbert Hoover renamed it the Mendocino National Forest on July 12, 1932. This National Forest takes its name from Mendocino County which was named for Cape Mendocino in Humboldt County. In 1542 explorer Roderiques de Cabrillo named the cape in honor of Don Antonio de Mendoza, first viceroy of New Spain.

The Mendocino National Forest is the only one of California's 18 National Forests not crossed by a paved road or highway. Elevations in the Forest range from 750 feet in the Grindstone Creek Canyon in the Sacramento Valley foothills on the Forest's eastern edge to the 8092 feet of South Yolla Bolly Mountain in the northern part of the Forest. The average elevation is about 4000 feet.

An estimated 60,000 acres of old growth occur here, including Douglas fir (Pseudotsuga menziesii var. menziesii), Ponderosa pine (Pinus ponderosa), White fir (Abies concolor), Tanoak (Lithocarpus densiflorus), and Pacific madrone (Arbutus menziesii).

The Mendocino National Forest is divided into the Grindstone (District 3), the Upper Lake (District 4) and the Covelo (District 5) Ranger Districts, with the Forest Supervisor's Office in Willows. The Grindstone Ranger District shares the Willows facility with the Forest Supervisor's Office.

R5 2014 Mendocino NF RD Map.jpg


The forest has three repeater nets, Forest Net, Fire Net and Service Net. There are 8 repeater sites. All the nets have a channel for direct communication. The Forest Net has repeaters at all of the sites, the Fire Net has repeaters on all but one of the sites and the Service Net has repeaters at 6 of the sites. At one time the Service Net was used by the engineering and maintenance organization. They had to move off of this net when a fire necessitated its use. The radios of all the management functions share the first 9 channels.


The Forest uses the function number identifier system. Identifiers of employees assigned to the Supervisor's Office begin with the number 1. The Mendocino Interagency Dispatch Center is located in the Forest Supervisor's Office. It dispatches for the Mendocino and the Sacramento River National Wildlife Refuge Complex. The Refuge Complex uses unit identifiers in the 8400 number series. The center serves as a channel or ordering point for logistics coordination with the Operations Northern California Geographical Area Coordination Center. It serves in this capacity for the Forest and Refuge Complex and for the following units it does not provide radio dispatch for: Point Reyes National Seashore, Golden Gate National Recreation Area, Hawaii Volcanoes National Park and the Round Valley Indian Reservation. The center uses the identifier of "Mendocino.".

Channel Plan

Mendocino National Forest Channel Lineup
Channel Tone(s) Rx Tx Alpha Tag Description
1 169.9750 169.9750 MNF1 Frst Dir Admin Net Direct
2 1-7,9 169.9750 169.1750 MNF2 Frst Rpt Admin Net Repeater
3 171.5500 171.5500 MNF3 Fire Dir Fire Net Direct
4 1,2,4-7,9 171.5500 164.5000 MNF4 Fire Rpt Fire Net Repeater
5 172.4000 172.4000 MNF5 Serv Dir Service Net Direct
6 1,2,4-6,9 172.4000 164.1250 MNF6 Serv Rpt Service Net Repeater
7 168.2000 168.2000 MNF7 NIFC T2 NIFC Tac 2
8 166.5500 166.5500 MNF8 R5 T4 R5 Tac 4
9 167.1125 167.1125 MNF9 R5 T5 R5 Tac 5
10 168.6625 168.6625 MNF10 R5 Proj R5 Project Net
12 155.1600 155.1600 MNF12 Nat'l SAR National Search & Rescue
13 6 156.0750 156.0750 MNF13 CALCORD CA On Scene Coordination
14 167.5000 167.5000 MNF14 AG14 National Air-Ground 14 - CA02 Primary
15 169.1125 169.1125 MNF15 AG59 National Air-Ground 59 - CA02 Secondary
16 1 168.6250 168.6250 MNF16 AirGrd National Air Guard - Use Tone 1 - 110.9 Tx/Rx Sides


MNF Repeaters
Tone Location CTCSS Tone
1 St. John Mt. (E) 110.9
2 Anthony Peak (W) 123.0
3 Round Mtn. (E) 131.8
4 Sanhedrin Mt. (W) 136.5
5 Tomhead (E) 146.2
6 Goat Mtn. (E) 156.7
7 Mt. Konocti (W) 167.9
8 Not Assigned 103.5
9 Alder Springs (E) 100.0

Information about the tones transmitted on the output frequency is unavailable.

The forest lists those repeaters to be used depending on what side of the mountain range crest the radio user is on.

Related Links

  • National Incident Radio Support Cache - These frequencies are used for large incidents, usually when a Type I or Type II Incident Management Team is assigned. This cache is used for fires, floods, tornadoes, hurricanes, visits of high ranking officials, such the U.S. President and the presidents of other countries, large law enforcement incidents, special events and other incidents where the federal government is utilizing the Incident Command System.

Return to DB page: United States Forest Service (CA)

US Forests in California:

Angeles Inyo Lassen Modoc Sequoia Six Rivers
Cleveland Klamath Los Padres Plumas Shasta-Trinity Stanislaus
Eldorado Lake Tahoe BMU Mendocino San Bernardino Sierra Tahoe