Tiber Dam, Montana

B70 Tiber Dam

Tiber Dam (B70) is a non-towered, public-use airport in Tiber Dam, Montana, at 3,023 ft MSL. Its runway is 12/30 (2,550 by 90 ft, turf). CTAF 122.9.

FAA NASR data effective Oct 29, 2026. Not for navigation; verify with current FAA charts and the Chart Supplement.

Airport

At a glance

Identifiers
FAA B70
Location
Tiber Dam, Montana (Liberty County). 1 NM SW of the city center
Elevation
3,023 ft MSL
Position
48.3139° N, 111.1091° W
Control tower
No, non-towered
Sectional chart
Great Falls
Magnetic variation
17° E (1985)
Ownership
Publicly owned, open to the public
Attendance
Unattended

1 runway

Runways

RunwayLength × widthSurfaceEdge lights
12/302,550 × 90 ftTurf, good conditionNot listed

Runway ends and traffic pattern

EndPatternGlide slope lightsInstrumentDisplaced thresholdLanding distance
12Not statedNone listedNone listedNone listedNot listed
30Not statedNone listedNone listedNone listedNot listed

VHF

Frequencies

CTAF
122.9

Before you go

Brief B70 in Ascent EFB.

Current weather, NOTAMs and the airport diagram for Tiber Dam, in the app on iPhone and iPad.

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Not for navigation. Verify with current FAA charts and the Chart Supplement before flight.

Source: FAA NASR 28-day subscription, cycle effective Oct 29, 2026. Airport data changes every 28 days and NOTAMs can override it at any time.