In longeing, a horse is trained at the end of what length of line?

In longeing, which is a method of training a horse while it moves in a circle on a long line, the typical length of the line used is usually between 25 to 30 feet. This length allows for effective communication between the handler and the horse, enabling the handler to give cues while still allowing the horse sufficient space to move freely.

Using a longer line, such as 30 feet, provides the horse with more room to demonstrate its movement and gait, which is crucial for evaluation and training. At the same time, a line that is too short may not allow the horse enough freedom of movement, which can hinder the training process.

The lengths provided in the other options do not align with commonly practiced longeing techniques. For instance, lengths such as 10 to 15 feet might be too short for effective longeing, while longer lengths, like 35 feet, are less common and can complicate the handler's ability to control the horse effectively, particularly for proper communication and training purposes. Thus, the range of 25 to 30 feet is most suitable for effective longeing.