Tercio Ranch Airstrip Private
3CO4 · Stonewall, CO · 7,957 ft elevation · var 10E · Non-towered
Airport information
- FAA LID
- 3CO4
- Coordinates
- 37.0709, -105.0190
- Elevation
- 7,957 ft MSL
- Magnetic variation
- 10E
- Sectional chart
- DENVER
- Airport use
- Private
- Control tower
- No
- ARTCC
- DENVER (ZDV)
- Flight service (FSS)
- DENVER
- Attendance
- ALL ALL
- Segmented circle
- No
- Wind indicator
- yes
- Activated
- 2000/03
- Distance from city
- 5 S
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 | 05:10 AM | 11:10Z |
| Sunrise | 05:40 AM | 11:40Z |
| Sunset | 08:23 PM | 02:23Z |
| Evening civil twilight Loggable night begins | 08:54 PM | 02:54Z |
Plan a flight from 3CO4
Night operations
- Airport lighting
- SS-SR
FAA night windows (civil twilight, loggable night §1.1, currency §61.57) are in the live weather panel above.
Traffic pattern
- Landing
- Rwy 13
- Pattern
- right (turns right)
- TPA
- 9,000 ft MSL (≈1,000 AGL)
Enter the right downwind for Rwy 13 at 9,000 ft MSL (≈1,000 AGL) on a 45°. TPA estimated at 1,000 ft AGL (not charted for this field).
Runway 13/31
3,700 ft × 75 ft · Turf (Good)- Heading
- n/a
- Traffic pattern
- Right
- Approach obstacle
- Trees, 58 ft, 1,200 ft from threshold
- Heading
- 343° mag · 353° true
- Traffic pattern
- Left
| Runway | Length | Your margin |
|---|---|---|
| 13/31 | 3,700 ft |
Nearby navigation aids
| NavAid | Type | Freq | Radial / Dist magnetic |
|---|---|---|---|
| CIM · Cimarron | VORTAC | 116.40 | r336° / 35.5 NM |
VFR sectional
No published instrument procedures or Chart Supplement for 3CO4. VFR sectional link above.
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 3CO4 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 3CO4
Tercio Ranch Airstrip (3CO4) is an airport in Stonewall, CO, at 7,957 ft MSL. It has 1 runway, the longest 3,700 ft, with no control tower (pilot-controlled). This page shows live METAR/TAF weather, runway crosswinds, frequencies, navaids, and FAA charts for 3CO4, refreshed from the Aviation Weather Center and FAA NASR.
Does 3CO4 have a control tower?
No. Tercio Ranch Airstrip is a non-towered (pilot-controlled) airport; use the published CTAF/UNICOM on the Comms & NavAids tab.
What is the longest runway at 3CO4?
Tercio Ranch Airstrip has 1 runway; the longest is 3,700 ft. See the Runways tab for headings, surface, and lighting.
Where is 3CO4?
Tercio Ranch Airstrip is in Stonewall, CO, at an elevation of 7,957 ft MSL. Coordinates: 37.0709, -105.0190.
Fly out of 3CO4 often?
Save 3CO4 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.