Roca Grande Rla Airport

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Location

Latitude: 
 41-47-16.6350N (41.787954)
Longitude: 
 088-36-23.7450W (-88.606596)
Elevation: 
 762.0 feet MSL (232 m MSL)
Magnetic Variation: 
 3.4 W (as of October 2026 from WMM2020 model)
Time Zone: 
 UTC -6.0 (Standard Time)
UTC -5.0 (Daylight Savings Time)
From City: 
 02 N.M. NE of Big Rock, Illinois
Found On: 
 Chicago Chart
FAA Region: 
 AGL

Contacts

Manager: 
Privately owned: 
ROCA GRANDE RLA
10828 COUNTYLINE ROAD
BIG ROCK, IL 60511
6307747167		 ROCA GRANDE RLA
10828 COUNTYLINE ROAD
BIG ROCK, IL 60511
6307747167

Operations

Airport Status: 
 Operational
Facility Use: 
 Private
Type: 
 Airport
Activation Date: 
 08/2026
Control tower: 
 No
Responsible ARTCC: 
 ZAU (Chicago)
Traffic Pattern Altitude (MSL): 
 1762 feet (537 m)

Based Aircraft

Annual Operations (as of )

Communications

CTAF:  122.900

       

    Fixed Based Operators (FBOs) & Fuel

    (Click on a business for detail)
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    Business Name Frequency Phone Fuel Grade

    Flight Service Stations

    Primary Alternate
    FSS on Field: 
    FSS Name (ID):  Kankakee(IKK)
    Frequency: 
    Toll Free Phone:  1-800-WX-BRIEF

    Instrument Procedures / Charts

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    Navigation Aids (Navaids) near 51IL

    Navigational Aid (NAVAID) distances from the airport are listed in Nautical Miles (NM).

    Nearby Airports with Fuel

    Dist (NM) Name (Airport IDs) True Hdg Mag Hdg Fuel Grade
    4.5 Hinckley Airport
    (0C2)    		 256 259 80
    5.9 Aurora Municipal Airport
    (AUZ KARR ARR)    		 99 103 100, Jet A-1
    9.8 De Kalb Taylor Municipal Airport
    (KDKB DKB)    		 333 336 100LL, Jet A-1+
    16.1 Cushing Field Ltd Airport
    (0C8)    		 179 182 100LL, Mogas
    17.5 Dupage Airport
    (DPA KDPA DPA)    		 65 69 100LL, Jet A
    22.1 Rochelle Municipal/Koritz Field Airport
    (KRPJ RPJ)    		 286 289 100LL, Jet A
    22.1 Bolingbrook's Clow International Airport
    (1C5)    		 104 108 100LL, Jet A
    22.2 Bresson Airport
    (C82)    		 266 269 100LL
    23.4 Morris Municipal/James R Washburn Field Airport
    (C09)    		 158 162 100LL, Jet A+
    24.8 Skydive Chicago Airport
    (8N2)    		 199 202 100LL, Jet A
    25.2 Joliet Regional Airport
    (JOT KJOT JOT)    		 129 133 100LL, Jet A, MOGAS
    25.3 Lewis University Airport
    (LOT KLOT LOT)    		 115 119 100LL, Jet A
    25.6 Schaumburg Regional Airport
    (06C)    		 61 65 100LL, Jet A
    28.1 Lake In The Hills Airport
    (3CK)    		 26 30 100LL, Jet A
    32.8 Chicago/Rockford International Airport
    (RFD KRFD RFD)    		 318 321 100LL, Jet A, Jet A-1+
    33.2 Chicago O'hare International Airport
    (ORD KORD ORD)    		 69 73 100LL, Jet A
    33.7 Poplar Grove Airport
    (C77)    		 342 345 100LL
    35.9 Illinois Valley Regional-Walter A Duncan Field Airport
    (VYS KVYS VYS)    		 223 226 100LL, Jet A+
    36.9 Dacy Airport
    (0C0)    		 358 362 100LL
    37.1 Chicago Exec Airport
    (PWK KPWK PWK)    		 57 61 100LL, Jet A-1+

    Notices to Airmen (NOTAMS)

    NOTAMs

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    Remarks

    No remarks for this landing facility

    Runways

    Runway Summary

    Runways: 09/27
    Longest Runway: 09/27 is 2721 ft (829 m) long
    Runways with an Instrument Approach:

    51IL Airport Runway Details

    Runway 09/27  2721 ft x 100 ft (829 m x 30 m)
    Runway Length Source:  OWNER as of 08/27/2026
    Surface:  Turf - No special surface treatment

    Runway 09

    Runway 27
    Elevation: 
    		 753.0 762.0
    Latitude: 
    		 41-47-16.3400N 41-47-16.9300N
    Longitude: 
    		 088-36-41.7000W 088-36-05.7900W
    Glide Path Angle: 
    		 0.0 degrees 0.0 degrees
    Traffic Pattern: 
    		 Left Left
    Runway Markings Type: 
    		 None None

    Services

    Airframe Repair: 
    		 Major
    Powerplant Repair: 
    		 Major
    Bottled Oxygen: 
    		 High Pressure / Low Pressure
    Bulk Oxygen: 
    		 High Pressure / Low Pressure
    Fuel Available: 
    		 100LL, Jet A-1+
    Landing Fees: 
    		 No
    Parking: 
    		 Hangars and tiedowns available

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    Maps & Diagrams

    51IL Sectional

    Flight Planning
    at skyvector.com

    51IL Diagram


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