Final answer:
Control tower frequencies can be found in the COM boxes on a Sectional Aeronautical Chart, typically located around airport symbols and include various communication channel details.
Step-by-step explanation:
The frequencies for control towers are typically located in the information boxes for airports on a Sectional Aeronautical Chart. These boxes are called Communication (COM) boxes and provide pertinent details necessary for pilots to communicate with the control tower and other services as needed. These boxes will often be found around airport symbols, and they normally include the control tower frequency, ground frequency, Automatic Terminal Information Service (ATIS), and approach and departure frequencies among other relevant communication channels. The control tower frequency is typically listed first and is essential for establishing contact between pilots and air traffic control to receive taxi, takeoff, and landing instructions.