Spire One is the most west of the numbered spires. It has a very distinctive shape, and can be identified by its three blocks, each one progressively smaller as they get higher. The pitches on this generally leave belays at each block because they are great ledges. Bring two ropes for a rappel from a fixed anchor.

Follow trail #4 to the north from the Cathedral Spires parking lot. When the trail junctions before the spires, do not take the climber's trail off to the right, but rather, continue up the hill to the left of the spires. Go around the back side and locate the uniquely shaped 3-blocked spire. It is the closest large spire to the trail.