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51IL Roca Grande RLA Airport
Big Rock, Illinois, USA

FAA INFORMATION EFFECTIVE 01 OCTOBER 2026

Location

FAA Identifier: 51IL
Lat/Long: 41-47-16.6350N 088-36-23.7450W
41-47.277250N 088-36.395750W
41.7879542,-88.6065958
(estimated)
Elevation: 762 ft. / 232 m (estimated)
From city: 2 miles NE of BIG ROCK, IL
Time zone: UTC +0 (year round; does not observe DST)
Zip code: 60520

Airport Operations

Airport use: Private use. Permission required prior to landing
Activation date: 08/2026
Control tower: no
ARTCC: CHICAGO CENTER
FSS: KANKAKEE FLIGHT SERVICE STATION
Attendance: 
Segmented circle: no

Airport Communications

CTAF: 122.9
WX ASOS at ARR (6 nm E): PHONE 630-466-5649
WX AWOS-3 at DKB (10 nm NW): 119.075 (815-748-2350)
WX ASOS at DPA (18 nm NE): PHONE 630-587-3668

Nearby radio navigation aids

VOR radial/distance  VOR name  Freq  Var
DPAr240/13.0DUPAGE VOR/DME114.5502E
JOTr316/19.4JOLIET VOR/DME112.3002E
OBKr230/39.1NORTHBROOK VOR/DME113.0002W

Airport Services

Runway Information

Runway 9/27

Dimensions: 2721 x 100 ft. / 829 x 30 m
Surface: turf
RUNWAY 9  RUNWAY 27
Latitude: 41-47.272333N41-47.282167N
Longitude: 088-36.695000W088-36.096500W
Elevation: 753.0 ft.762.0 ft.
Traffic pattern: leftleft
Markings: nonenone

Airport Ownership and Management from official FAA records

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

Instrument Procedures

There are no published instrument procedures at 51IL.

Some nearby airports with instrument procedures:

KARR - Aurora Municipal Airport (6 nm E)
KDKB - De Kalb Taylor Municipal Airport (10 nm NW)
KDPA - DuPage Airport (18 nm NE)
KRPJ - Rochelle Municipal Airport/Koritz Field (22 nm W)
1C5 - Bolingbrook's Clow International Airport (22 nm E)
  
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Aerial photo
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Sectional chart

 
Airport distance calculator
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From to 51IL

Sunrise and sunset
Times for 05-Oct-2026
 Zulu (UTC)
Morning civil twilight11:29
Sunrise11:57
Sunset23:29
Evening civil twilight23:57

Current date and time
Zulu (UTC)  05-Oct-2026 20:26:32
 
METAR
KARR 
6nm E 		051952Z 36008KT 9SM CLR 21/06 A3022 RMK AO2 SLP235 T02110061
KDKB 
10nm NW 		052015Z AUTO 00000KT 10SM CLR 21/06 A3023 RMK AO2 T02050059
KDPA 
18nm NE 		051952Z 16004KT 10SM CLR 20/07 A3023 RMK AO2 SLP241 T02000067
TAF
KDPA 
18nm NE 		051720Z 0518/0618 VRB03KT P6SM SKC FM052200 09006KT P6SM FEW050 FM060300 14006KT P6SM SKC FM061400 21012G20KT P6SM FEW080 FEW300
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