Circle Z Landing Strip

NA90 · Underwood, ND · 2,000 ft elevation

Overview Weather Runways Comms & NavAids Charts Services & info

Airport information

FAA LID: NA90
Coordinates: 47.4667, -101.2230
Elevation: 2,000 ft MSL

Detailed FAA facility data isn't available for this airport.

Weather

METAR observed

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TAF forecast

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Sun & FAA night 2026-06-22

Event	Local (CDT)	UTC
Morning civil twilight Loggable night ends	05:07 AM	10:07Z
Sunrise	05:48 AM	10:48Z
Sunset	09:46 PM	02:46Z
Evening civil twilight Loggable night begins	10:26 PM	03:26Z

Loggable night (§1.1)

10:26 PM → 05:07 AM

Night currency (§61.57)

10:46 PM → 04:48 AM

Plan a flight from NA90

Destination (ICAO)

TAS (kt)Burn (gph)Reserve (hr)Wind from (°)Wind (kt)

Traffic pattern

Landing runway

LEFT traffic

Landing: Rwy 08
Pattern: left (turns left)
TPA: 3,000 ft MSL (≈1,000 AGL)

Enter the left downwind for Rwy 08 at 3,000 ft MSL (≈1,000 AGL) on a 45°. TPA estimated at 1,000 ft AGL (not charted for this field).

Runway 08/26

1,000 ft × 50 ft · TURF

Heading: n/a

Heading: n/a

Runway 13/31

1,900 ft × 50 ft · TURF

Heading: n/a

Heading: n/a

Headings shown are true (magnetic variation unavailable).

Will it fit? Your aircraft's required runway length (from the POH) — checked against every runway here

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

Runway	Length	Your margin
08/26	1,000 ft
13/31	1,900 ft

No published frequencies, ILS, or nearby navaids for NA90.

VFR sectional

Open NA90 on the VFR sectional (SkyVector) ↗

No published instrument procedures or Chart Supplement for NA90. VFR sectional link above.

No published services or facility detail for NA90.

Nearby airports

ND44 · Underwood AirportPrivate (4 NM)37N · Garrison Dam Recreational Airpark (8 NM)5C8 · Washburn Municipal Airport (11 NM)3NA2 · Lorentzen AirportPrivate (12 NM)91N · Turtle Lake Municipal Airport (13 NM)D05 · Garrison Municipal Airport (14 NM)

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 NA90 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 NA90

Circle Z Landing Strip (NA90) is an airport in Underwood, ND, at 2,000 ft MSL. It has 2 runways, the longest 1,900 ft. This page shows live METAR/TAF weather, runway crosswinds, frequencies, navaids, and FAA charts for NA90, refreshed from the Aviation Weather Center and FAA NASR.

What is the longest runway at NA90?

Circle Z Landing Strip has 2 runways; the longest is 1,900 ft. See the Runways tab for headings, surface, and lighting.

Where is NA90?

Circle Z Landing Strip is in Underwood, ND, at an elevation of 2,000 ft MSL. Coordinates: 47.4667, -101.2230.

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