Airports / KM45 / Alpine County AirportGood ground coverage

📍 Markleeville⬆ 5,867 ft1 runways

KM45 ·

Alpine County Airport

38.73470°N

-119.76700°W

ARR / DAY

▼ 66.7%

DEP / DAY

▼ 100.0%

Alpine County Airport (KM45) is a small general aviation airport located in Markleeville, CA, 55 mi south of Reno. It features 1 runway measuring 4,443 feet.

Safety incidents

Last 7 days · 0 total

NORMAL

Current weather

From KTVL, 16 mi away (KM45 does not publish METAR)

54m ago

Temp

60°F

Wind

7 kts

210°

Visib

10+ km

Ceil

—

KTVL 022153Z AUTO 21007G26KT 180V250 10SM FEW055 16/00 A3013 RMK AO2 PK WND 19032/2141 SLP159 T01560000

Runways

1 installed

4,443 FT MAX

17/35

4,443 ft × 50

ASP○ unlit

Runway intelligence

Which runway carries the operations, observed over the last 30 days

95% of ops

42 land · 2 TO

5% of ops

2 land · 7 TO

Runway 17 carries 95% of operations (42 landings, 2 takeoffs) over the last 30 days. The next most-used is 35 at 5%.

Approach quality

Per-runway unstable-approach, go-around, and long-rollout rates

17 42 landings

UA 2%

35 2 landings

UA 0%

Approaches to 17 show a 2% unstable-approach rate (1 UA events from 42 landings).Phase B will add wind-correlation: which crosswind band produces most UA events.

Traffic behavior

When the field is busy: hourly + weekday vs weekend

Daily avg

1.5

flights/day · 44 total

Busy hour (local)

3pm

also 4pm · 8pm

Day vs night

77%

06:00–20:00 local

Traffic concentrates around 3pm–8pm local, averaging 1.5 flights/day. Weekend volume runs 1.2× weekday (1.8 vs 1.4 daily).

Aircraft character

What's actually flying here: top types over the last 30 days

Activity is led by (18% of 39 flights). Top three types: , , .

Communications Frequencies

2026-06-11

Type	Freq (MHz)	Hours
CTAF	122.900	—

Airport operations

ARTCC:: ZOA
Mag var:: 16° E

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