Belle Fourche Municipal (KEFC), South Dakota
Landing essentials
Whether you can land, whether you can refuel, and how customs works here.
Overview
Belle Fourche Municipal Airport (KEFC) serves the Belle Fourche area of western South Dakota with a single paved runway and a turf crosswind option. The field sits unattended outside its published hours and operates without an air traffic control tower, relying on CTAF for traffic coordination. Business aviation activity here is light, consistent with a general aviation field supporting a small surrounding community. Customs clearance is not available onsite, with the nearest customs airport at KCPR, roughly 157 nautical miles away.
Runways
Belle Fourche Municipal has two paved and unpaved runways. The longest, 14/32, is 4,501 ft long and 60 ft wide, with an asphalt surface.
Runway geometry from published threshold coordinates. Not for navigation.
Runways are listed longest first.
Source: FAA Form 5010.
Fuel and airfield services
Belle Fourche Municipal has Jet A and 100LL available on the field. Fueling is available from 8am to 6pm, daily, and the airport has no control tower.
Source: FAA Form 5010 / NASR.
Customs
Belle Fourche Municipal does not clear customs. The nearest port of entry is Casper / Natrona County International (KCPR), 157 NM away.
Source: CBP list of ports of entry.
Business aviation traffic
Belle Fourche Municipal recorded 29 business aviation movements in 2025. Traffic peaks in August. Business aviation traffic at KEFC concentrates in the warmer months, with August showing the highest monthly count and March and June recording no business aviation operations at all.
Business jet movements, FAA TFMSC count. Peak month August, 6 movements in 2025.
Source: FAA TFMSC, business jet movements, 2025.
Climate
Belle Fourche Municipal averages 14.2 days above 90°F in July, 29.4 freeze days in December and 2.7 snow days in December. July is the warmest month, with average highs of 87.3°F, and January the coldest, at 36.5°F.
Weather station is 3.8 NM from the field. Some values are estimated by the agency. 1991–2020 climate normals.
Source: NOAA NCEI.
Operating constraints
Belle Fourche Municipal has published operating constraints in three categories: access, runway notes and other notes.
Ultralight operations occur on and in the vicinity of the airport.
Runway 14/32 medium intensity runway lights are activated via CTAF.
The runway is marked with white and black marker cones.
Waterfowl are present on and in the vicinity of the airport.
For clearance delivery, contact Denver Air Route Traffic Control Center.
A high volume of aircraft operate in the vicinity of Mount Rushmore and Crazy Horse Monuments at or below 7,500 feet. Pilots are advised to monitor frequency 122.85 for traffic advisories.
Source: FAA Chart Supplement.
Nearby airfields
Belle Fourche Municipal has five airfields within 47 NM. The closest is Black Hills-Clyde Ice Field (KSPF), 15.56 NM south.
Source: Skystar calculation from official coordinates.
Skystar at KEFC
We arrange catering, fuel and trip support here. Supplier prices reach you unchanged; our coordination fee sits on its own line.
The same order, priced two ways.
$1,200.00 catering order at KEFC.
Unchanged.
What the kitchen invoices us is what your quote reads.
One line, fixed.
It does not move with the size of the order.
At cost.
Passed on at the exact amount the processor took.
Market practice figures are industry averages, not a specific competitor.
Frequently asked questions
What runways are available at KEFC?
Belle Fourche Municipal Airport (KEFC) offers two runways. Runway 14/32 is paved asphalt, measuring 4,501 feet long and 60 feet wide. Runway 18/36 is a turf strip, 3,639 feet long and 120 feet wide. The paved runway is the longer of the two and supports the field's fixed-wing traffic.
Is fuel available at Belle Fourche Municipal Airport?
Belle Fourche Municipal Airport (KEFC) stocks both 100LL and Jet A fuel. The field is attended daily from 0800 to 1800 local time. Outside those hours, fuel service and field attendance should not be assumed. Pilots planning arrivals or departures outside the published schedule should account for this in their planning.
Can international flights clear customs at KEFC?
Belle Fourche Municipal Airport (KEFC) does not have customs clearance onsite. The nearest customs-equipped airport is KCPR, located approximately 157 nautical miles away. Flights requiring customs processing need to route through KCPR or another designated port of entry before or after operating into KEFC. This should factor into any international trip planning involving this field.
What operational hazards should pilots be aware of near KEFC?
Pilots operating at or near Belle Fourche Municipal Airport (KEFC) should be aware of ultralight operations on and in the vicinity of the airport, as well as waterfowl activity on and around the field. Additionally, the area sees a high volume of aircraft operating near Mount Rushmore and Crazy Horse Monuments at or below 7,500 feet. Pilots are advised to monitor frequency 122.85 for traffic advisories in that vicinity.