Here's why:

* Volcanic Necks: These are formed when magma solidifies within the conduit of a volcano. The surrounding rock erodes away over time, leaving the hardened magma as a tall, isolated column.

* Ship Rock's Formation: Ship Rock is the solidified magma that once fed an ancient volcano. The surrounding softer rock eroded away, revealing the hard, resistant volcanic neck.

Let me know if you'd like to learn more about volcanic necks or Ship Rock itself!