What is the term used to describe the situation where two corners (SC and CC) are located on the same township line?

The term used to describe the situation where two corners, specifically the section corner (SC) and the quarter corner (CC), are located on the same township line is "Double Corners." This terminology indicates that there are two delineated points representing different surveying references that coincide at the same location on the township line.

Double Corners can occur due to various historical surveying practices where two different surveys or corner establishment methods resulted in the same physical point on the ground being designated for different purposes—one as a section corner, which typically marks the divisions of townships, and the other as a quarter corner, marking a subdivision within that section. Understanding this term is crucial for surveyors as it impacts how they interpret boundary agreements and navigate land use regulations.

The other terms provided do not accurately capture this specific situation. "Duplicate Corners" implies that there are identical corners created with the same reference, but does not specifically identify the relationship between a section and quarter corner. "Overlapping Corners" might suggest a different context where the corners of adjacent parcels or sections infringe upon one another, which is another concept entirely. "Adjacent Corners" refers to corners that are next to each other but do not imply they are located on the same township line or