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Hot Springs County–Thermopolis Municipal Airport (KHSG) is a general aviation facility located 10 miles northwest of Thermopolis, Wyoming, at coordinates N43°42.82' / W108°23.38'. The airport opened in 2015 as a replacement for the original Thermopolis Municipal Airport, which was located within the city but was unsuitable for expansion. Situated on 480 acres at an elevation of 4,892 feet above mean sea level, the airport serves the Hot Springs County region in the Mountain Time Zone and operates under CTAF frequency 122.8. The airport's primary runway measures 6,370 feet in length, making it suitable for a variety of general aviation aircraft operations. The runway designated 5/23 is equipped with comprehensive lighting systems including REIL (Runway End Identifier Lights) for both runway ends, PAPI (Precision Approach Path Indicator) systems for precise approach guidance, and MIRL (Medium Intensity Runway Lighting) for enhanced visibility during low-light operations. These lighting systems ensure safe operations during various weather and lighting conditions typical of the Wyoming high country. Operational statistics from the year ending June 30, 2021, show the airport handled 2,702 aircraft operations, averaging 52 operations per week. The traffic composition includes 94% general aviation, 6% air taxi operations, and less than 1% military activity. At that time, 10 aircraft were permanently based at the facility, consisting of 9 single-engine and 1 multi-engine aircraft, reflecting the airport's role as both a community aviation hub and a base for local aircraft operations. The airport provides essential aviation services including 100LL fuel through self-serve credit card systems, with full-service fuel available upon request. After-hours service is available with no call-out fee by contacting 307-921-8579. Air traffic control services are provided by Salt Lake ARTCC (ZLC) on frequencies 133.25/285.6 through the Jackson RCAG, with clearance delivery available by calling Salt Lake ARTCC at 801-320-2568. The facility represents a significant improvement in regional aviation infrastructure for the Thermopolis area and surrounding Hot Springs County communities.
Airlines Serving THP
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Allow extra time for transfers at Hot Springs County Airport, serving Thermopolis and surrounding Wyoming communities in the high country near Yellowstone. The facility operates with a 6,370-foot runway at 4,892 feet elevation, designed to handle various general aviation aircraft in challenging mountain and high-altitude conditions. Weather patterns including Rocky Mountain storms, high-altitude winds, temperature inversions, and seasonal snow significantly impact operations, requiring specialized high-altitude flying procedures and careful monitoring of rapidly changing mountain weather. Ground transportation options include rental vehicles, taxi services for the 10-mile journey to Thermopolis, hotel shuttles through advance arrangement, and coordination with local businesses, though advance planning is essential in this rural area. Seasonal weather variations during winter months bring snow, ice, and extreme cold that dramatically affect aircraft performance at high altitude, while summer offers optimal flying conditions but afternoon thunderstorms typical of mountain regions. The airport's strategic location serves Hot Springs County communities, provides access to Yellowstone region tourism, supports regional business aviation, and enables emergency medical evacuation services for isolated rural communities throughout the Wyoming high country. Emergency services coordinate with Hot Springs County emergency response systems and arrange evacuations to regional medical centers in Billings or Denver when serious cases arise. Local aviation services include 100LL self-serve fuel with credit card access, full-service fuel upon request, after-hours services through 307-921-8579, and basic aircraft maintenance capabilities for general aviation operations. Weather monitoring systems provide essential data for safe high-altitude operations where density altitude and mountain wave conditions create unique challenges. The facility coordinates closely with Salt Lake ARTCC through Jackson RCAG for air traffic control services, clearance delivery, and flight planning through complex mountain terrain. Advanced lighting systems including REIL, PAPI, and MIRL provide enhanced safety for operations during variable mountain weather and lighting conditions.
Expert Travel Tips & Insights
Pro Traveler Secret
Check terminal and airline baggage transfer rules, especially on separate tickets.
Quick Facts
Minimum domestic connection:
35 minutes
International connections:
65 minutes
Interline transfers:
100 minutes
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