6MT4

Brown Cabin Seaplane Base

Libby, MontanaElevation 3,340 ftSeaplane base

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RUNWAYS

Runway detail & declared distances

1 runway · longest 12,000 ft

11W/29W
Dimensions
12,000 x 500 ft
Surface
Water
RWY 11W
RWY 29W
Traffic patternRight

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

AIRPORT INFORMATION

Facility & services

Brown Cabin Seaplane Base is in Libby, Montana. Field elevation 3,340 ft MSL. Airport facts are drawn from OurAirports and the FAA NASR dataset.

OPERATIONS & CONTACT
OwnershipPrivately owned
UsePrivate use
TypeSeaplane base
ManagerPERRY BROWN
Manager phone406-249-3637
CHARTS & AIRSPACE
ICAO / IATA6MT4
SectionalGREAT FALLS
Center (ARTCC)SEATTLE
Flight service (AFSS)COLUMBUS
RegionMontana
CountryUnited States
Coordinates48.0381, -115.0913
Distance from city28 NM SE
SERVICES & LIGHTING
Control towerNon-towered
AIRPORT REMARKS

Operational remarks

PLB.CFII@GMAIL.COM
FREQUENTLY ASKED
Does 6MT4 have a METAR?
No on-field METAR is issued for 6MT4. This page uses the nearest reporting station as a reference.
Does 6MT4 have a TAF?
No TAF is issued directly for 6MT4. Use the nearest TAF-issuing field as a planning reference.
What is the field elevation at 6MT4?
6MT4 sits at 3,340 ft MSL, which factors into the density-altitude estimate on this page.
Is this an official preflight weather briefing for 6MT4?
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.