wxdecoder
21MU

The Peninsula Airport

Shell Knob, MissouriElevation 1,015 ftSmall airport

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RUNWAYS

Runway detail & declared distances

1 runway · longest 2,800 ft

18/36
Dimensions
2,800 x 40 ft
Surface
Turf (good)
RWY 18
RWY 36

Runway data from the FAA NASR dataset (effective 2026-06-11). Verify with the current Chart Supplement and NOTAMs.

AIRPORT INFORMATION

Facility & services

The Peninsula Airport is in Shell Knob, Missouri. Field elevation 1,015 ft MSL. Airport facts are drawn from OurAirports and the FAA NASR dataset.

OPERATIONS & CONTACT
OwnershipPrivately owned
UsePrivate use
TypeSmall airport
ManagerJOHN MALLAMO
Manager phone417-559-6709
AttendedUNATNDD
CHARTS & AIRSPACE
ICAO / IATA21MU
Center (ARTCC)KANSAS CITY
Flight service (AFSS)COLUMBIA
RegionMissouri
CountryUnited States
Coordinates36.5649, -93.5096
Distance from city7 NM SE
SERVICES & LIGHTING
Control towerNon-towered
AIRPORT REMARKS

Operational remarks

›PVT AIRSTRIP - PPR. CTC AMGR.
›PRVDD A CLEAR APCH EACH RY FOR A 20:1 GLIDE SLOPE & A CLEAR TRANSITIONAL SFC FOR A 7:1 SLOPE.
›CTAF 122.9
›RY 18/36 SMALL CONES LINE BOTH SIDES OF STRIP.
›BE ALERT FOR DEER ON RWY.
›FOR CD CTC SPRINGFIELD APCH AT 417-868-5620/5619.
›DAY ONLY OPS.
OFFICIAL LINKS & SOURCES
↗Search NOTAMs (official FAA NOTAM Search)
↗21MU on OurAirports
FREQUENTLY ASKED
Does 21MU have a METAR?
No on-field METAR is issued for 21MU. This page uses the nearest reporting station as a reference.
Does 21MU have a TAF?
No TAF is issued directly for 21MU. Use the nearest TAF-issuing field as a planning reference.
What is the field elevation at 21MU?
21MU sits at 1,015 ft MSL, which factors into the density-altitude estimate on this page.
Is this an official preflight weather briefing for 21MU?
No. wxdecoder.com is for education and situational awareness only. It is not an official weather briefing or a substitute for official sources, NOTAM review, and pilot judgment.
This app is for aviation weather education, training, and situational awareness only. It is not a substitute for an official weather briefing, approved flight-planning software, flight service, dispatch procedures, current FAA regulations, or pilot judgment. Always verify weather with official sources before flight.