What type of anchor is described as a small aluminum plate that can be buried in snow?

The type of anchor described as a small aluminum plate that can be buried in snow is referred to as a snow fluke. This anchor works by utilizing the weight of the snow itself to enhance its holding power and stability. When properly placed in the snow, the flat surface and design of the snow fluke allow it to create an effective anchor point for rope systems used in rescue operations or recreational climbing.

A snow fluke relies on the surrounding snow to exert pressure against it, creating resistance as it is pulled. As the snow adheres to the fluke, it prevents upward motion, thus securing the anchor adequately for use in snowy conditions. This makes it an essential tool when other anchor types, like traditional rock anchors or tree anchors, are not available or effective.

Understanding the functionality of a snow fluke is crucial for safety in winter rescue scenarios, where other types of anchors may not provide the same level of reliability.