Airport information
- FAA LID
- 4CO7
- Coordinates
- 39.2204, -104.6807
- Elevation
- 7,028 ft MSL
- Magnetic variation
- 11E
- Sectional chart
- DENVER
- Airport use
- Private
- Control tower
- No
- ARTCC
- DENVER (ZDV)
- Flight service (FSS)
- DENVER
- Attendance
- UNATNDD
- Segmented circle
- No
- Activated
- 1996/05
- Distance from city
- 8 W
Weather
METAR observed
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TAF forecast
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Sun & FAA night 2026-06-21
| Event | Local (MDT) | UTC |
|---|---|---|
| Morning civil twilight Loggable night ends | 05:00 AM | 11:00Z |
| Sunrise | 05:32 AM | 11:32Z |
| Sunset | 08:28 PM | 02:28Z |
| Evening civil twilight Loggable night begins | 09:01 PM | 03:01Z |
Plan a flight from 4CO7
Traffic pattern
- Landing
- Rwy 17
- Pattern
- left (turns left)
- TPA
- 8,000 ft MSL (≈1,000 AGL)
Enter the left downwind for Rwy 17 at 8,000 ft MSL (≈1,000 AGL) on a 45°. TPA estimated at 1,000 ft AGL (not charted for this field).
Runway 17/35
2,500 ft × 60 ft · Turf- Heading
- n/a
- Traffic pattern
- Left
- Heading
- n/a
- Traffic pattern
- Left
- Approach obstacle
- Pline, 40 ft, 10 ft from threshold
| Runway | Length | Your margin |
|---|---|---|
| 17/35 | 2,500 ft |
Nearby navigation aids
| NavAid | Type | Freq | Radial / Dist magnetic |
|---|---|---|---|
| BRK · Black Forest | VORTAC | 112.50 | r339° / 16.7 NM |
| FQF · Falcon | VORTAC | 116.30 | r175° / 28.3 NM |
| BKF · Buckley | TACAN | 109.60 | r162° / 29.4 NM |
| FCS · Butts | VOR-DME | 108.80 | r354° / 32.6 NM |
| DEN · Denver | VOR-DME | 117.90 | r170° / 35.6 NM |
VFR sectional
No published instrument procedures or Chart Supplement for 4CO7. VFR sectional link above.
Ownership & management
Remarks FAA
- OWNER DESIRES ARPT NOT BE CHARTED.
- FOR CD CTC DENVER APCH AT 303-342-1916.
Nearby airports
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 4CO7 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.
About 4CO7
Ambrosich Field (4CO7) is an airport in Elbert, CO, at 7,028 ft MSL. It has 1 runway, the longest 2,500 ft, with no control tower (pilot-controlled). This page shows live METAR/TAF weather, runway crosswinds, frequencies, navaids, and FAA charts for 4CO7, refreshed from the Aviation Weather Center and FAA NASR.
Does 4CO7 have a control tower?
No. Ambrosich Field is a non-towered (pilot-controlled) airport; use the published CTAF/UNICOM on the Comms & NavAids tab.
What is the longest runway at 4CO7?
Ambrosich Field has 1 runway; the longest is 2,500 ft. See the Runways tab for headings, surface, and lighting.
Where is 4CO7?
Ambrosich Field is in Elbert, CO, at an elevation of 7,028 ft MSL. Coordinates: 39.2204, -104.6807.
Fly out of 4CO7 often?
Save 4CO7 as your home base in the SkyReady app for a one-tap Go/No-Go readiness brief, weather alerts, and automatic FAA currency — free to log.