Airport information
- FAA LID
- CO27
- Coordinates
- 37.4678, -108.6650
- Elevation
- 6,640 ft MSL
- Magnetic variation
- 13E
- Sectional chart
- DENVER
- Airport use
- Private
- Control tower
- No
- ARTCC
- DENVER (ZDV)
- Flight service (FSS)
- DENVER
- Attendance
- UNATNDD
- Segmented circle
- No
- Activated
- 1973/07
- Distance from city
- 8 N
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 | 05:23 AM | 11:23Z |
| Sunrise | 05:54 AM | 11:54Z |
| Sunset | 08:39 PM | 02:39Z |
| Evening civil twilight Loggable night begins | 09:10 PM | 03:10Z |
Plan a flight from CO27
Traffic pattern
- Landing
- Rwy N
- Pattern
- left (turns left)
- TPA
- 7,600 ft MSL (≈1,000 AGL)
Enter the left downwind for Rwy N at 7,600 ft MSL (≈1,000 AGL) on a 45°. TPA estimated at 1,000 ft AGL (not charted for this field).
Runway N/S
2,200 ft × 40 ft · Dirt- Heading
- n/a
- Traffic pattern
- Left
- Approach obstacle
- Pline, 200 ft from threshold
- Heading
- n/a
- Traffic pattern
- Left
| Runway | Length | Your margin |
|---|---|---|
| N/S | 2,200 ft |
Nearby navigation aids
| NavAid | Type | Freq | Radial / Dist magnetic |
|---|---|---|---|
| CEZ · Cortez | VOR-DME | 108.40 | r300° / 6.8 NM |
| DVC · Dove Creek | VORTAC | 114.60 | r134° / 24.1 NM |
| ETL · Cones | VOR-DME | 110.20 | r197° / 39.4 NM |
VFR sectional
No published instrument procedures or Chart Supplement for CO27. VFR sectional link above.
Services
- Airframe service
- NONE
- Powerplant service
- NONE
Ownership & management
Remarks FAA
- FOR CD CTC DENVER ARTCC AT 303-651-4257.
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 CO27 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 CO27
Tanner Field (CO27) is an airport in Cortez, CO, at 6,640 ft MSL. It has 1 runway, the longest 2,200 ft, with no control tower (pilot-controlled). This page shows live METAR/TAF weather, runway crosswinds, frequencies, navaids, and FAA charts for CO27, refreshed from the Aviation Weather Center and FAA NASR.
Does CO27 have a control tower?
No. Tanner Field is a non-towered (pilot-controlled) airport; use the published CTAF/UNICOM on the Comms & NavAids tab.
What is the longest runway at CO27?
Tanner Field has 1 runway; the longest is 2,200 ft. See the Runways tab for headings, surface, and lighting.
Where is CO27?
Tanner Field is in Cortez, CO, at an elevation of 6,640 ft MSL. Coordinates: 37.4678, -108.6650.
Fly out of CO27 often?
Save CO27 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.