What does the term "alienable and disposable lands" imply in surveying?

The term "alienable and disposable lands" refers specifically to those lands that can be converted to private ownership. This classification indicates that the government recognizes these lands as available for sale or transfer, allowing individuals or entities to acquire ownership rights. This concept is vital in land surveying and property law, as it defines the types of land that can be legally surveyed, sold, or otherwise disposed of.

In contrast, lands that are not designated as alienable and disposable may be retained for public use or preserved under government ownership, which rules out their conversion to private ownership. This essentially distinguishes the potential for development and investment in these lands, making it crucial for surveyors and engineers to understand the implications of this classification in their work.