Eckhart International Airport (1S1)

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Eckhart International Airport (1S1)
1S1
Eckhart International Airport (1S1)
Porthill, ID
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Location & QuickFacts
FAA Information Effective 2026-07-09
Airport Identifier 1S1
Airport Status Operational
Longitude/Latitude 116°30'7.4000" W / 48°59'25.7000" N
-116.502056 / 48.990472 (Estimated)
Elevation 1758.00 ft / 535.84 m (Estimated)
Land 39 acres
Location Boundary County, ID
Magnetic Variation 20E (1985)
Owner & Manager
Ownership Publicly owned
Owner STATE OF ID, ITD DIV AERO
Address BOX 7129
BOISE, ID 83707-1129
Phone number 208-334-8775
Manager DIVISION ADMIN
Address BOX 7129
BOISE, ID 83707-1129
Phone number 208-334-8775
Airport Operations and Facilities
Airport Use Open to public
Wind indicator Yes
Segmented Circle Yes
Control Tower NON-ATCT
Landing fee charge No
Sectional chart GREAT FALLS
Region ANM - Northwest Mountain
Responsible ARTCC ZSE - SEATTLE
Tie-in FSS BOI - BOISE
FSS on Airport No
FSS Toll Free 1-800-WX-BRIEF
NOTAMs Facility BOI (NOTAM-d service available)
Airport Communications
CTAF 122.8 MHz
UNICOM 122.8 MHz
Airport Services
Airframe repair NONE
Power plant repair NONE
Bottled oxygen NONE
Bulk oxygen NONE
Transient storage Tiedown
Runway Information
Runway 15/33
Dimensions 3650 x 175 ft (1113 x 53 m)
Surface TURF (GOOD)
Surface treatment
15 33
Alignment 171° 351°
Physical elevation 1758.00 ft 1748.00 ft
Coordinates 48.995415 / -116.503309 48.985545 / -116.500813
Traffic pattern Left Left
Remarks
  • NO WINTER MAINTENANCE.
  • ACFT PRKG LTD TO TWO HRS IN CUST TRML AREA; LONGER TERM PRKG AVBL TO THE WEST OF RWY END 15 - BTN ASPH TWY & ANHEUSER-BUSCH PLANT.
  • RWY 15 DO NOT USE ASPH TWY PTN FOR TKOF.
  • +25' HOP POLES LOCATED ADJACENT TO BOTH SIDES OF RWY.
  • (E84) NON STD - SEMI CIRCLE.
  • FOR CD CTC SEATTLE ARTCC AT 253-351-3694.