Airport information
- FAA LID
- 3CO2
- Coordinates
- 40.6164, -103.3324
- Elevation
- 4,192 ft MSL
- Magnetic variation
- 11E
- Sectional chart
- CHEYENNE
- Airport use
- Private
- Control tower
- No
- ARTCC
- DENVER (ZDV)
- Flight service (FSS)
- DENVER
- Attendance
- ALL 0700-1600
- Segmented circle
- No
- Wind indicator
- yes
- Activated
- 1975/06
- Distance from city
- 6 W
Weather
METAR observed
Loading current weather…
TAF forecast
Loading forecast…
Sun & FAA night 2026-06-21
| Event | Local (MDT) | UTC |
|---|---|---|
| Morning civil twilight Loggable night ends | 04:49 AM | 10:49Z |
| Sunrise | 05:23 AM | 11:23Z |
| Sunset | 08:28 PM | 02:28Z |
| Evening civil twilight Loggable night begins | 09:01 PM | 03:01Z |
Plan a flight from 3CO2
Traffic pattern
- Landing
- Rwy 18
- Pattern
- right (turns right)
- TPA
- 5,200 ft MSL (≈1,000 AGL)
Enter the right downwind for Rwy 18 at 5,200 ft MSL (≈1,000 AGL) on a 45°. TPA estimated at 1,000 ft AGL (not charted for this field).
Runway 18/36
4,000 ft × 100 ft · GRVL-DIRT- Heading
- n/a
- Traffic pattern
- Right
- Approach obstacle
- Road, 300 ft from threshold
- Heading
- n/a
- Traffic pattern
- Left
| Runway | Length | Your margin |
|---|---|---|
| 18/36 | 4,000 ft |
Nearby navigation aids
| NavAid | Type | Freq | Radial / Dist magnetic |
|---|---|---|---|
| AKO · Akron | VOR-DME | 114.40 | r333° / 28.5 NM |
| SNY · Sidney | VORTAC | 115.90 | r196° / 32.9 NM |
VFR sectional
No published instrument procedures or Chart Supplement for 3CO2. VFR sectional link above.
Services
- Fuel available
- 100LL, Jet A
- Airframe service
- MINOR
- Powerplant service
- MINOR
Ownership & management
Remarks FAA
- PVT USE ONLY. TFC PTN W OF ARPT TO AVOID CONFLICT WITH TFC AT CROSSON FLD.
- FOR CD CTC DENVER ARTCC AT 303-651-4257.
- 970-520-1941 (CELL)
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 3CO2 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 3CO2
Mertens Airport (3CO2) is an airport in Sterling, CO, at 4,192 ft MSL. It has 1 runway, the longest 4,000 ft, with no control tower (pilot-controlled). This page shows live METAR/TAF weather, runway crosswinds, frequencies, navaids, and FAA charts for 3CO2, refreshed from the Aviation Weather Center and FAA NASR.
Does 3CO2 have a control tower?
No. Mertens Airport is a non-towered (pilot-controlled) airport; use the published CTAF/UNICOM on the Comms & NavAids tab.
What is the longest runway at 3CO2?
Mertens Airport has 1 runway; the longest is 4,000 ft. See the Runways tab for headings, surface, and lighting.
Where is 3CO2?
Mertens Airport is in Sterling, CO, at an elevation of 4,192 ft MSL. Coordinates: 40.6164, -103.3324.
Fly out of 3CO2 often?
Save 3CO2 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.