Koch Field Private
7CO4 · Arriba, CO · Non-towered · Print kneeboard · Open on the map
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Weather
METAR observed
TAF forecast
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Sun & FAA night2026-09-18 · night begins 07:24 PM
| Event | Local (MDT) | UTC |
|---|---|---|
| Morning civil twilight Loggable night ends | 06:10 AM | 12:10Z |
| Sunrise | 06:37 AM | 12:37Z |
| Sunset | 06:57 PM | 00:57Z |
| Evening civil twilight Loggable night begins | 07:24 PM | 01:24Z |
Plan a flight from 7CO4
Winds aloft NOAA forecast · 3,000 to 53,000 ft
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Full reports: nearest reporting station
Advisories
NOTAMs · Loading NOTAMs…
Pilot reports · Loading PIREPs…
Airspace hazards · Checking SIGMETs and G-AIRMETs…
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Runways
RWY 27LEFT traffic
- Heading
- 270° true
- Dimensions
- 5,000 × 60 ft
- TPA
- 6,200 ft MSL (≈1,000 AGL) · standard
- Surface
- Dirt
Enter the left downwind (heading 090°) on the 45° at 6,200 ft MSL (≈1,000 AGL).
Pattern side: FAA NASR · TPA standard 1,000 ft AGL (not charted) · layout: schematic (headings + lengths)
Headings shown are true (magnetic variation unavailable).
| Runway | Length | Your margin |
|---|---|---|
| 09/27 | 5,000 ft |
Prefer one flat page? Full runway details for 7CO4 → · New to pattern entries? The 45° entry, explained → · Teaching here? Print the 7CO4 kneeboard →
Comms & NavAids
Nearby navigation aids
TXC 112.90 · HGO 112.10
| NavAid | Type | Freq · ch | Range | Radial / Dist magnetic |
|---|---|---|---|---|
| TXC · Thurman | VORTAC | 112.90 · 76X | Low | r171° / 24.7 NM |
| HGO · Hugo | VOR/DME | 112.10 · 58X | High | r025° / 33.2 NM |
Charts & procedures
No published instrument procedures or Chart Supplement for 7CO4 — open it on the VFR sectional →
Airport info
Airport information
- FAA LID
- 7CO4
- Coordinates
- 39.2883, -103.2469
- Elevation
- 5,180 ft MSL
- Airport use
- Private
- Control tower
- No
- ARTCC
- DENVER (ZDV)
- Flight service (FSS)
- DENVER · 1-800-WX-BRIEF
- Segmented circle
- No
- Activated
- 2016/12
- Distance from city
- 2 E
Ownership & management 2 contacts
Remarks FAA · 1 notes
General
- FOR CD CTC DENVER ARTCC AT 303-651-4257.
Nearby airports
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Also nearby: CO00 Flagler Aerial Spraying INC (private) (8 NM) · CO25 Metrogro Farm (private) (25 NM) · 35CO Lone Tree Ranch (private) (36 NM) · CO22 Hildebrandt (private) (36 NM) · CO84 Idlers Field (private) (38 NM)
About 7CO4
Koch Field (7CO4) is an airport in Arriba, CO, at 5,180 ft MSL. It has 1 runway, the longest 5,000 ft, with no control tower (pilot-controlled). This page shows live METAR/TAF weather, runway crosswinds, frequencies, navaids, and FAA charts for 7CO4, refreshed from the Aviation Weather Center and FAA NASR.
Does 7CO4 have a control tower?
No. Koch Field is a non-towered (pilot-controlled) airport; use the published CTAF/UNICOM in the Comms & NavAids section.
What is the longest runway at 7CO4?
Koch Field has 1 runway; the longest is 5,000 ft. See the Runways section for headings, surface, and lighting.
Where is 7CO4?
Koch Field is in Arriba, CO, at an elevation of 5,180 ft MSL. Coordinates: 39.2883, -103.2469.
More about 7CO4
Weather is live from the Aviation Weather Center; airport facility data is from the FAA NASR (28-day cycle). For planning and education only; always verify against official sources. Open 7CO4 in a full tool: METAR/TAF decoder, crosswind calculator, sun & night times, or the density altitude calculator. Planning from here? Find the nearest airport with fuel or an approach, or check whether an IFR alternate is required.
Something here wrong or out of date? Report a data problem.