General description
                        One cornerstone was shaped to a 90-degree angle and set in mortar on bedrock.
                     
                    
                        Use history
                        It is not known to what kind of feature or structure this stone belongs. It seems unlikely that only one course would be left of a structure wall, but the type of feature that would contain a wall like this is unknown.
                     
                    
                    
                        Excavation procedure
                        Not excavated, exposed only.
                     
                    
                        Portion excavated
                        Only the portion within Segment 6; feature continues outside excavation unit to the east.
                     
                    
                        Horizontal location
                        Along the east edge of Segment 4; 1.1 m south of Structure 1224 of the great tower complex.
                     
                    
                        Vertical location
                        On an extramural surface (Surface 1), bedrock.
                     
                    
                        Construction
                        Only one stone and some mortar are observable, the remainder of the feature is outside the unit to the east. The stone is carefully pecked to a 90 degree angle and, from the portion exposed, appears to be either square or rectangular. The block is set in an abundant amount of orange-brown construction sediment, which anchors it to bedrock.
                     
                    
                        Remodeling/ modification
                        
                                                            No
                                                    
                     
                    
                    
                    
                    
                    
                        Degree of preservation
                        Preservation unknown.
                     
                    
                        Shape in plan view
                        Actual: 
                            unknown.
                            Inferred:  unknown.
                        
                     
                    
                        Shape in cross section
                        Actual:   unknown.
                            Inferred:  irregular.
                        
                     
                    
                    
                        
                            Dimensions
                        
                        
                            
                                
                                     
                                    Actual
                                    Complete?
                                    Inferred
                                    Comments
                                 
                                
                                    Length
                                    82
                                    
                                                                                 No
                                                                            
                                    
                                    Including mortar with which the corner stone is anchored to bedrock.
                                    
                                    
                                        Height
                                        16
                                        
                                                                                            No
                                                                                    
                                        
                                        Height of corner stone.
                                     
                                    
                                 
                             
                         
                     
                    
                        Stratigraphy
                        
                            
                                
                                    
                                        Stratum
                                        Interpretation
                                        Inclusions
                                        Disturbance
                                        Color
                                        Texture