Alpine County traffic pattern

Pattern altitude at Alpine County (M45) is 6,672 ft MSL · 800 AGL as published by the FAA, and 35 is charted right traffic. · Open on the map

All of Alpine County — runways, frequencies, charts and live weather

Pattern diagram

Drawn to scale from the FAA NASR runway alignments and the per end right traffic flags — pick a runway to see its pattern. Live wind picks the favored runway when M45 reports it.

RWY 17LEFT traffic

Heading: 168° mag · 184° true
Dimensions: 4,443 × 50 ft
TPA: 6,672 ft MSL · 800 AGL · charted
Surface: Asphalt
CTAF: 122.9

Enter the left downwind (heading 348°) on the 45° at 6,672 ft MSL.

More details — RWY 17

Threshold elev: 5,827 ft
Markings: basic
Approach obstacle: Hill, 150 ft, 3,200 ft from threshold, 425 ft L of centerline — 20:1 slope to clear
TDZ elevation: 5,857 ft

Condition: Poor.

Pattern side: FAA NASR · TPA charted (NASR) · layout: FAA runway-end coordinates

Pattern direction by runway

Runway	Pattern	Heading	Pattern altitude
17	Left traffic	168° mag	6,672 ft MSL · 800 AGL
35	Right traffic	348° mag	6,672 ft MSL · 800 AGL

Pattern altitude is published for M45 in the FAA NASR data. Headings are the runway alignment; downwind is the reciprocal.

Flying the pattern at M45

Alpine County is non towered, so the pattern is self announced on CTAF 122.9. AC 90-66B asks for a report on entry and on each leg, and for the standard 45° entry to downwind at pattern altitude.

Watch the right traffic ends here: 35. A right pattern at a field where the other end is left is the single most common place to end up pointing at opposing traffic. The full entry procedure is here →

Frequently asked

What is the traffic pattern altitude at M45?

The FAA publishes a traffic pattern altitude of 800 ft AGL for Alpine County, which is 6,672 ft MSL on the altimeter with the field at 5,872 ft.

Does M45 have right traffic?

Yes, on one runway end: 35. Every other end at Alpine County is standard left traffic.

What frequency is the pattern on at M45?

Alpine County is non towered, so pattern position reports go on the CTAF, 122.9. AC 90-66B asks for self announcing on entry and on each leg.

More about M45

Pattern direction and alignment are drawn from the FAA NASR (28-day cycle); the diagram is generated, not an FAA chart. Pattern altitude is shown as published where NASR carries one, otherwise as the AC 90-66B 1,000 ft AGL convention. For planning and education only; always verify against the Chart Supplement.

Something here wrong or out of date? Report a data problem.