This region of "Gordon's Calvary", Skull Hill is the northern most part of the mount called Moriah and confirms with the practices in Leviticus 1:11​
​He is to slaughter it at the north side of the altar before the LORD, and Aaron's sons the priests shall sprinkle its blood against the altar on all sides, NIV.​

This is the same region that Abraham brought his son Isaac to sacrifice him as told in Genesis 22.​
​Then God said, "Take your son, your only son, Isaac, whom you love, and go to the region of Moriah. Sacrifice him there as a burnt offering on one of the mountains I will tell you about." NIV​

This is the same region that God was foreshadowing and serving as symbolic of an event, of something to follow, which was God's own son Jesus Christ.​

This region and tomb is also outside the city gates which confirms with Hebrews 13:12 And so Jesus also suffered outside the city gate to make the people holy through his own blood.​

On top of Golgotha, a stone's throw from the tomb in the garden, according to topographical maps of the area, this same region is the highest point of  Mount Moriah, standing an impressive 777 meters above sea level. The number 777 is said to describe the Holy Trinity of God the Father, the Son and the Holy Spirit.