Mertens Airport Private

3CO2 · Sterling, CO · Non-towered · Print kneeboard

Elevation
4,192 ft MSL
Longest runway
4,000 ft 18/36
Runway
1
Mag var
11E

Nearby now

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Weather

METAR observed

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TAF forecast

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Sun & FAA night2026-08-04 · night begins 08:36 PM
EventLocal (MDT)UTC
Morning civil twilight
Loggable night ends
05:22 AM11:22Z
Sunrise05:53 AM11:53Z
Sunset08:05 PM02:05Z
Evening civil twilight
Loggable night begins
08:36 PM02:36Z
Loggable night (§1.1)
08:36 PM → 05:22 AM
Night currency (§61.57)
09:05 PM → 04:53 AM

Plan a flight from 3CO2

Winds aloft NOAA forecast · 3,000 to 53,000 ft

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Advisories

NOTAMs

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Pilot reports

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Airspace hazards

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Runways

5,000 ftNMNxw 259°downwind 349°base 079°final 169°45° entry1836

RWY 18RIGHT trafficRP · charted

Heading
169° mag · 180° true
Dimensions
4,000 × 100 ft
TPA
5,200 ft MSL (≈1,000 AGL) · standard
Surface
GRVL-DIRT

Enter the right downwind (heading 349°) on the 45° at 5,200 ft MSL (≈1,000 AGL).

More details — RWY 18
Approach obstacle
Road, 300 ft from threshold

Pattern side: FAA NASR · TPA standard 1,000 ft AGL (not charted) · layout: schematic (headings + lengths)

ft · ≥1.5× comfortable, under 1.25× tight · saved across airports

Prefer one flat page? Full runway details for 3CO2 → · New to pattern entries? The 45° entry, explained → · Teaching here? Print the 3CO2 kneeboard →

Comms & NavAids

Nearby navigation aids

AKO 114.40 · SNY 115.90
NavAidTypeFreq · chRangeRadial / Dist magnetic
AKO · Akron VOR/DME 114.40 · 91X High r333° / 28.5 NM
SNY · Sidney VOR/DME 115.90 · 106X High r196° / 32.9 NM

Charts & procedures

No published instrument procedures or Chart Supplement for 3CO2 — open it on the VFR sectional →

Airport info

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 · 122.2, 122.4 · 1-800-WX-BRIEF
Attendance
ALL 0700-1600
Segmented circle
No
Wind indicator
yes
Activated
1975/06
Distance from city
6 W
Services fuel · repairs · oxygen · attendance
Fuel available
100LL, Jet A
Airframe service
MINOR
Powerplant service
MINOR
Ownership & management 2 contacts
Owner
DARREL MERTENS
BOX 535, STERLING, CO
(970) 522-1941
Manager
DARREL MERTENS
BOX 535, STERLING, CO
(970) 522-1941
Remarks FAA · 2 notes

General

  • FOR CD CTC DENVER ARTCC AT 303-651-4257.

Contact

  • 970-520-1941 (CELL)

Nearby airports

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Also nearby: 7V5 Brush Municipal Airport (24 NM) · CO06 Wirth Field (private) (27 NM) · NE34 Fehringer Aerodrome (private) (31 NM)

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 in the Comms & NavAids section.

What is the longest runway at 3CO2?

Mertens Airport has 1 runway; the longest is 4,000 ft. See the Runways section 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.

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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.