What altitude should be maintained when contacting the tower while arriving to Waldron from S. Mustang?

Maintaining an altitude of 1,000 feet Mean Sea Level (MSL) when contacting the tower while arriving at Waldron from S. Mustang is correct because this altitude is typically set to ensure sufficient vertical separation and safety from obstacles in the surrounding area, as well as conforming to local air traffic control procedures.

In many scenarios, this altitude allows approaching aircraft to communicate effectively with the control tower while ensuring they are within a safe range above the ground and any potential hazards. It also aligns with standard operational procedures that assist with orderly arrivals and departures in controlled airspace.

Other altitudes may either be too low, risking conflicts with terrain or other traffic, or too high, which could complicate the communication and clearance process with the tower. Thus, the choice of 1,000 feet MSL establishes a standard that promotes safety and efficiency in air traffic control during the arrival phase.