Airports / Belle Fourche Municipal Airport
Belle Fourche Municipal Airport(KEFC)
Belle Fourche, United States
Last updated: Mar 20, 2026
Activity Summary
Airport Patterns
49 aircraft not previously recorded at this airport appeared this period
Charter/owner classification not available for this airport's flights
Spikes
Significant deviations from this airport's baseline in the selected period.
CO₂ Above Baseline
63t
Signals Detected
5
Highest Severity
High
Elevated activity Sep 8, 2025 – Sep 14, 2025 — 5 flights in 7 days vs baseline of 2
5 flights recorded in a 7-day window, exceeding the airport baseline of 2 flights per week by 134%.
19.9t CO₂
Elevated activity Oct 28, 2025 – Nov 3, 2025 — 5 flights in 7 days vs baseline of 2
5 flights recorded in a 7-day window, exceeding the airport baseline of 2 flights per week by 134%.
13.9t CO₂
Elevated activity Nov 4, 2025 – Nov 10, 2025 — 5 flights in 7 days vs baseline of 2
5 flights recorded in a 7-day window, exceeding the airport baseline of 2 flights per week by 134%.
9.5t CO₂
Single high-emission departure N402JE → KEFC on Dec 19, 2025 — 16.2t CO₂, 89% of day's total
Aircraft N402JE departing to KEFC produced 16.2t CO₂, representing 89% of all airport emissions on Dec 19, 2025.
16.2t CO₂
15-day gap in recorded activity ending Jan 30, 2026
Airport had 15 consecutive days with zero recorded flights before activity resumed on Jan 30, 2026.
3.2t CO₂
Route Map
KEFC to KHPN · 1,538 miles
Total Flights
3
Avg CO₂/Flight
7.7t
Total Emissions
23.0t CO₂
KEFC to KDAY · 1,054 miles
Total Flights
1
Avg CO₂/Flight
9.7t
Total Emissions
9.7t CO₂
KEFC to KCMH · 1,116 miles
Total Flights
1
Avg CO₂/Flight
8.5t
Total Emissions
8.5t CO₂
KEFC to KRDD · 979 miles
Total Flights
1
Avg CO₂/Flight
4.9t
Total Emissions
4.9t CO₂
KEFC to KLUK · 1,069 miles
Total Flights
1
Avg CO₂/Flight
4.9t
Total Emissions
4.9t CO₂
KEFC to KPIR · 178 miles
Total Flights
1
Avg CO₂/Flight
4.0t
Total Emissions
4.0t CO₂
Recent Flights
10 total flights recordedShowing most recent flights — not filtered by viewing period