US Forest Service - Arapaho National Forest (CO)
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The Arapaho National Forest comprises 723,744 acres spread primarily across Clear Creek, Gilpin, Grand, and Summit counties in Colorado. Small portions of the forest also extend into Park and Jefferson counties. The forest is split into two ranger districts, the Clear Creek Ranger District, headquartered in Idaho Springs, and the Sulphur Ranger District, headquartered in Granby.
Contents
Radio Frequencies
The forest relies upon the combined Arapaho, Roosevelt, Pawnee (ARP) radio network for communications. This radio network is a product of the combined management of the Arapaho National Forest, the Roosevelt National Forest (in Boulder and Larimer Counties to the north), and the Pawnee National Grasslands (in Weld County). Previously, the radio networks for these forests were divided into two separate systems: the Roosevelt Net (which also served Pawnee) and the Arapaho Net. The 2016 NTIA federal re-banding mandate resulted in additional improvements to these networks, causing them to be consolidated into a single network divided into three geographical areas: North, for Roosevelt and Pawnee operations, South, for Arapaho operations on the Clear Creek Ranger District, and West, for Arapaho operations on the Sulphur Ranger District.
- Information for the ARP North Net can be found here: Roosevelt National Forest
Dispatching and resource tracking on the Arapaho National Forest is handled by the Fort Collins Interagency Dispatch Center.
- Federal Dispatch Boundary Maps for Colorado
- WildCAD CO-FTC Local Incident and Resource Status Tracking
ARP (Arapaho, Roosevelt, Pawnee) South Zone Repeater Network
- The South Net of the Arapaho, Roosevelt, Pawnee (ARP) radio system serves the Clear Creek Ranger District of the Arapaho National Forest.
- "Tone #" refers to the National Standard Tone Numbering System used by the USFS, BLM, and other land management agencies and is only applicable to TX tones.
CH | TONE # | RX FREQ | RX TONE | TX FREQ | TX TONE | Description | Ranger District | County | Confirmation |
---|---|---|---|---|---|---|---|---|---|
South Direct | 0 | 170.4750 | 170.475 | ARP South Direct | Clear Creek | Clear Creek / Gilpin | 2022.06 (Mt. Evans Rec Area operations) | ||
Squaw | 1 | 170.4750 | 164.1375 | 110.9 | Squaw Mountain Repeater | Clear Creek | Clear Creek | 2022.05 | |
Mines Peak | 2 | 170.4750 | 164.1375 | 123.0 | Mines Peak Repeater (Co-located w/ West Net's Berthoud Pass Repeater) | Clear Creek | Grand | ||
Starr Peak | 5 | 170.4750 | 164.1375 | 146.2 | Starr Peak Repeater (Co-located w/ North Net's Thorodin Repeater) | Clear Creek | Jefferson | 2022.06 | |
Griffith | 11 | 170.4750 | 164.1375 | 114.8 | Griffith Mountain Repeater | Clear Creek | Clear Creek | ||
Mount Evans | 170.4750 | 164.1375 | Mount Evans Repeater (Co-located w/ Pike NF Mt. Evans Repeater) | Clear Creek | Clear Creek | 2022.06 (Testing being conducted, unable to capture input.) | |||
Lincoln Lake | 170.4750 | 164.1375 | Lincoln Lake Repeater | Clear Creek | Clear Creek | 2021.08 (signal too weak to capture tones) | |||
170.475 | 164.1375 | Custer (?) Repeater | Clear Creek | 2021.08 (signal too weak to capture tones) |
ARP (Arapaho, Roosevelt, Pawnee) West Zone Repeater Network
- The West Net of the Arapaho, Roosevelt, Pawnee (ARP) radio system serves the Sulphur Ranger District of the Arapaho National Forest.
- "Tone #" refers to the National Standard Tone Numbering System used by the USFS, BLM, and other land management agencies and is only applicable to TX tones.
CH | TONE # | RX FREQ | RX TONE | TX FREQ | TX TONE | Description | Ranger District | County | Confirmation |
---|---|---|---|---|---|---|---|---|---|
West Direct | 170.5500 | 170.5500 | ARP West Direct | Sulphur | Grand | ||||
Berthoud | 2 | 170.5500 | 165.0875 | 123.0 | Berthoud Pass Repeater (Co-located w/South Net's Mines Peak Repeater) | Suplhur | Grand | ||
Cottonwood | 3 | 170.5500 | 165.0875 | 131.8 | South Cottonwood Repeater | Suplhur | Grand | 2020.08.18 | |
Blue Ridge | 4 | 170.5500 | 165.0875 | 136.5 | Blue Ridge Repeater | Suphur | Grand | 2020.08.18 | |
Little Gravel | 14 | 170.5500 | 165.0875 | 151.4 | Little Gravel Repeater | Sulphur | Grand | 2020.08.18 |
Intra-Crew, Work, & Tactical Frequencies
- General use work channels/frequencies are generally restricted to low power use in handhelds for the purpose of intra-crew communications. These frequencies are part of a shared NITA Itinerant/Common Use pool (see: Federal Government Itinerant) and not reserved for use by any one specific user/agency.
- On extended attack incidents, frequencies from the National Incident Radio Support Cache pool are likely to be assigned.
- Local/initial attack incidents may be assigned frequencies from the VHF portion of the NIFOG Interoperability pool (see: Common Public Safety#VHF High Band) to allow for direct coordination with local resources.
CH | RX FREQ | RX TONE | TX FREQ | TX TONE | Description | Notes | Confirmation |
---|---|---|---|---|---|---|---|
ARP WORK | 168.7250 | 168.7250 | Arapahoe, Roosevelt, Pawnee Work Net / Type III Logistics Net | Exclusive assignment for ARP. Forest-wide simplex for intra-crew work/tactical use. Assigned for use as Logistics Net on Type III incidents. | |||
WORK 1 | 163.7125 | 163.7125 | (Varies) | General Use Intra-Crew/Work Ch 1 | Gov't Common 1, handheld use only. National Travel Net, IHC, and Intra-Crew frequency. | ||
WORK 2 / TAC-3 | 168.6125 | 168.6125 | (Varies) | General Use Intra-Crew/Work Ch 2 / Type III TAC-3 | Gov't Common 3, handheld use only. Secondary IHC and Intra-Crew frequency. Assigned for use as TAC-3 on Type III incidents. | ||
FIRETAC / TAC-1 | 166.5625 | 166.5625 | Arapahoe, Roosevelt, Pawnee Fire TAC / Type III TAC-1 | Exclusive assignment for ARP. Initial Attack Tactical/Type III TAC-1. Previously used as "ROOS WORK" Channel. | 2022.06 (signal too weak to capture tone, if any) | ||
R2 TAC-1 | 168.6750 | 168.6750 | USFS Region 2 Tactical 1 | Regional Type III Tactical. Has been used by ARP in the past, unknown if still used or authorized. | |||
R2 TAC-2 / TAC-2 | 168.7750 | 168.7750 | USFS Region 2 Tactical 2 / Type III TAC-2 | Regional Type III Tactical. Has been used by ARP in the past, unknown if still used or authorized. | |||
FTC SOA | 169.9500 | CSQ | 165.2250 | 107.2 | "Scene-of-Action" Command Repeater | Portable Incident Command Repeater available for use on Type III incidents from Fort Collins Interagency Dispatch. |
Air Operations
- Additional information available here: National Incident Radio Support Cache #Air VHF FM ("Foxtrot Mike") Frequencies
CH | RX FREQ | RX TONE | TX FREQ | TX TONE | Description | Notes | Confirmation |
---|---|---|---|---|---|---|---|
"National" | 168.650 | 110.9 | 168.650 | 110.9 | National Flight Following | Nationwide Flight Following Frequency. Appears in many radios as "NTL FLTF." Generally referred to on air as "National." | 2022.05 (in use daily with both PBC and FTC dispatch) |
"Air Guard" | 168.625 | 110.9 | 168.625 | 110.9 | National Air Emergency | Nationwide Aircraft Emergency Frequency. Continuous monitoring of this frequency is required of all tactical aircraft and dispatch offices. Reserved for emergency air-to-air or air-to-ground communications, but may be used for initial contact if no other frequencies are available. Often appears as Channel 14 or 16 in portable radios (whichever is the last channel in the radio) to allow crews to quickly switch to it. | |
"Air-Ground 9" | 166.9125 | CSQ | 166.9125 | CSQ | Colorado Zone 06 Primary Air-Ground | Primary Air-Ground frequency for Fort Collins Dispatch Zone (Colorado Initial Attack Zone 06). National Air-Ground System Channel 9. Has been seen programmed as "CO06AG09" or "A/G 9" in some radios. | 2022.06 |
"Air-Ground 58" | 169.0875 | CSQ | 169.0875 | CSQ | Colorado Zone 06 Secondary Air-Ground | Secondary Air-Ground frequency for Fort Collins Dispatch Zone (Colorado Initial Attack Zone 06). National Air-Ground System Channel 58. Has been seen programmed as "CO06AG58" or "A/G 58" in some radios. | |
"126.025" | 126.025 | AM | 126.025 | AM | Colorado Zone 06 Primary Air-Air | Primary Air-Air frequency for Fort Collins Dispatch Zone (Colorado Initial Attack Zone 06) | 2022.06 |
124.375 | AM | 124.375 | AM | Colorado Zone 06 Secondary Air-Air | Secondary Air-Air frequency for Fort Collins Dispatch Zone (Colorado Initial Attack Zone 06). Authorized for 2020 season, unknown if still in use. | ||
133.750 | AM | 133.750 | AM | Colorado Zone 06 Tertiary Air-Air | Tertiary Air-Air frequency for Fort Collins Dispatch Zone (Colorado Initial Attack Zone 06). Authorized for 2020 season, unknown if still in use. | ||
"123.025" | 123.025 | AM | 123.025 | AM | Nationwide Rotorwing Deconfliction | Nationwide deconfliction position reporting frequency for rotorwing aircraft. Used to coordinate with outside agency and civilian aircraft. Not exclusive to USFS. | 2022.06 |