Special use airspace

F16Military operations areas | Restricted areas

Military operations areas

Obtaining the most current information is the pilot's responsibility. Be sure to check with GRB AFSS for any changes. 

AreaEffective altitudesDays/Times usedControlling agency activity information
Falls 1500 AGL to, but not including, 18,000Intermittent
Tue-Sat 0800-1600
Other times by NOTAM
MSP Center 128.6
GRB AFSS 122.5
Volk Apch 135.25
Volk Tower 127.5
Falls 2500 AGL to, but not including, 18,000Intermittent
Tue-Sat 0800-1600
Other times by NOTAM
MSP Center 128.6
GRB AFSS 122.5
Volk Apch 135.25
Volk Tower 127.5
Volk West100 AGL to, but not including, 18,000Intermittent
Tue-Sat 0800-1600
Other times by NOTAM
MSP Center 128.6
GRB AFSS 122.5
Volk Apch 135.25
Volk Tower 127.5
Volk
South
500 AGL to, but not including, 18,000Intermittent
Tue-Sat 0800-1600
Other times by NOTAM
CHI Center 125.5
GRB AFSS 122.35
Volk Apch 135.25
Volk Tower 127.5
Volk East8,000 to, but not including, 18,000Intermittent
Tue-Sat 0800-1600
Other times by NOTAM
CHI Center 125.5
GRB AFSS 122.45
Volk Apch 135.25
Volk Tower 127.5
Minnow10,000 to, but not including, 18,000Intermittent
Other times by NOTAM
(normally daylight hours)
MSP Center 125.55
CHI Center 125.1
GRB AFSS 122.4
Note: Altitudes are MSL and in feet unless otherwise indicated. Time shown is local.
For further information, monitor 134.35 or contact Volk Approach 135.25 or contact Volk ANGB Airspace Scheduling Office at (1-800)972-8673.

 

Restricted areas

Area/locationAltitudeTimeControlling agency activity information
R-6901 A Fort McCoy
Fort McCoy Range
to 20,0001May-30 Sep -
Continuous
1Oct-30Apr -
0800-2200
MSP Center 128.6
McCoy Tower 124.6
GRB AFSS 122.5
R-6901 B Fort McCoy
Fort McCoy Range
to 20,000By NOTAMMSP Center 128.6
McCoy Tower 124.6
GRB AFSS 122.5
R-6903 Sheboygan
Sheboygan Range
to FL 450Intermittent by NOTAMCHI Center 125.5
Volk Apch 135.25
Volk Tower 127.5
GRB AFSS 122.4
R-6904A Volk Field
Hardwood Range
150 AGL to 17,000Tue-Sat 0800-1600
Other times by NOTAM
MSP Center 128.6
Volk Apch 135.25
Volk Tower 127.5
GRB AFSS 122.2
R-6904B Volk Field
Hardwood Range
to 17,000Tue-Sat 0800-1600
Other times by NOTAM
MSP Center 128.6
Volk Apch 135.25
Volk Tower 127.5
GRB AFSS 122.2

Note: Altitudes are MSL and in feet unless otherwise indicated. Time shown is local. No person shall operate an aircraft within a Restricted Area between the designated altitudes during the time of designation unless prior permission has been issued.

​Related links