OverviewCastle Rock Spire is very remote and should only be attempted by climbers with experience.
Getting ThereSee my individual route description of how to get to Castle Rock Spire.
The orange route is the standard route to the saddle. The route to the saddle isn't too technically difficult. For experience climbers it's usually done with out a rope or go together on a short rope.
The route from the saddle to the summit is indicated by the red line. There are various routes of different difficulties. I believe my route is the easiest. The traverse across for the most part would be rated approximately 5.5. There is a chimney climb I did near the summit which I would rate about a 5.6 difficulty.
Once you've summited and made it back to the saddle between the Spire and Castle Rock Mountain I would then rappel down instead of downclimbing the traverse.
Essential GearGear to reach the peak includes and ice axe and crampons.
Gear to climb the spire includes, but is not limited to all the gear you would usually use to climb a 5.6 / 5.7 route.