Airport information
- FAA LID
- CO56
- Coordinates
- 39.9641, -104.4630
- Elevation
- 5,075 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
- Wind indicator
- yes
- Distance from city
- 10 SE
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 | 04:56 AM | 10:56Z |
| Sunrise | 05:29 AM | 11:29Z |
| Sunset | 08:30 PM | 02:30Z |
| Evening civil twilight Loggable night begins | 09:03 PM | 03:03Z |
Plan a flight from CO56
Traffic pattern
- Landing
- Rwy 17
- Pattern
- left (turns left)
- TPA
- 6,100 ft MSL (≈1,000 AGL)
Enter the left downwind for Rwy 17 at 6,100 ft MSL (≈1,000 AGL) on a 45°. TPA estimated at 1,000 ft AGL (not charted for this field).
Runway 17/35
4,280 ft × 40 ft · Dirt- Heading
- n/a
- Traffic pattern
- Left
- Approach obstacle
- Plines, 22 ft, 440 ft from threshold
- Heading
- n/a
- Traffic pattern
- Left
- Approach obstacle
- Plines, 28 ft, 560 ft from threshold
| Runway | Length | Your margin |
|---|---|---|
| 17/35 | 4,280 ft |
Nearby navigation aids
| NavAid | Type | Freq | Radial / Dist magnetic |
|---|---|---|---|
| DVV · Mile High | VORTAC | 114.70 | r050° / 8.5 NM |
| DEN · Denver | VOR-DME | 117.90 | r034° / 12.9 NM |
| FQF · Falcon | VORTAC | 116.30 | r013° / 18 NM |
| BKF · Buckley | TACAN | 109.60 | r029° / 20.4 NM |
| BVR · Byers | VOR-DME | 113.50 | r286° / 27.4 NM |
| BJC · Jeffco | VOR-DME | 115.40 | r073° / 31.3 NM |
| GLL · Gill | VORTAC | 114.20 | r160° / 32.7 NM |
VFR sectional
No published instrument procedures or Chart Supplement for CO56. VFR sectional link above.
Ownership & management
Remarks FAA
- PRVDD ACFT USING ARPT USE A MODE C TRANSPONDER.
- 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 CO56 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 CO56
Jjs Airport (CO56) is an airport in Keenesburg, CO, at 5,075 ft MSL. It has 1 runway, the longest 4,280 ft, with no control tower (pilot-controlled). This page shows live METAR/TAF weather, runway crosswinds, frequencies, navaids, and FAA charts for CO56, refreshed from the Aviation Weather Center and FAA NASR.
Does CO56 have a control tower?
No. Jjs Airport is a non-towered (pilot-controlled) airport; use the published CTAF/UNICOM on the Comms & NavAids tab.
What is the longest runway at CO56?
Jjs Airport has 1 runway; the longest is 4,280 ft. See the Runways tab for headings, surface, and lighting.
Where is CO56?
Jjs Airport is in Keenesburg, CO, at an elevation of 5,075 ft MSL. Coordinates: 39.9641, -104.4630.
Fly out of CO56 often?
Save CO56 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.