Placing Protection: Nuts, Cams, Ice Screws and Anchors

The Art and Science of Trusting Your Life to Metal

“Protection isn’t just gear – it’s a conversation between you, the rock, and gravity.”

In over two decades of climbing across ice-choked couloirs, crumbling granite ridges, and alpine death zones, I’ve come to believe this: the most important gear on your rack isn’t the newest – it’s the piece you trust when everything else fails.

This article is your blueprint for mastering the craft of placing climbing protection – not just how to plug gear, but how to think like a climber who survives storms, rockfall, sketchy pitches, and real-world emergencies.


🧭 Table of Contents

  1. Why Protection Placement Matters
  2. Understanding Active vs Passive Protection
  3. Nuts & Stoppers: Simple, Reliable, Life-Saving
  4. Camming Devices (Cams): Versatility with Responsibility
  5. Ice Screws: Trusting Steel on Frozen Water
  6. Building Anchors: Principles that Save Lives
  7. Field-Proven Protection Placement Tips
  8. Common Mistakes and How to Avoid Them
  9. Final Reflections from the Vertical World

🧗 Why Protection Placement Matters

Every time you place a nut, cam, or screw, you’re saying:

“If I fall right now, this has to hold.”

Bad protection is worse than none at all. It builds false confidence, leads to poor decisions, and can fail catastrophically in critical moments. On the other hand, good placements:

  • Save lives in a fall
  • Provide psychological safety on runout leads
  • Serve as rescue anchors in emergencies
  • Build trust within your climbing team

Your gear won’t save you unless you know how to place it properly.


🧩 Active vs Passive Protection

TypeDescriptionExample Gear
Passive ProtectionRelies on shape + constriction in rockNuts, hexes
Active ProtectionUses mechanical force to grip the rockSpring-loaded cams, big bros

🔎 Rule of Thumb: Passive = lighter, simpler, better in narrow constrictions. Active = faster, versatile, but more prone to walking or user error.


🪨 Nuts & Stoppers: Simple, Reliable, Life-Saving

Passive protection is often the most bombproof, if you know how to place it.

✅ Ideal For:

  • Cracks that taper downward
  • Small constrictions
  • Lightweight alpine racks
  • Backup for anchors

🛠️ Placement Tips:

  • Look for flared constrictions where the nut wedges securely
  • Test with a gentle tug in the direction of anticipated fall
  • Extend with a sling to prevent rope movement (aka “walking”)
  • Don’t overcam it – removal matters, too

Pro Tip: Use offset nuts in irregular cracks. They outperform regular ones in pin scars or uneven rock.


🔧 Camming Devices (Cams): Versatility with Responsibility

Cams are the workhorses of trad climbing – fast to place, easy to clean, and adaptable.

✅ Ideal For:

  • Parallel-sided cracks
  • Flared placements
  • Emergency speed placements on runout terrain

🛠️ Placement Tips:

  • Aim for 50–70% cam retraction
  • Avoid over-camming – it weakens holding power and gets stuck
  • Always align stem with fall direction
  • Use shoulder slings to minimize walking
  • Never trust a tipped-out cam unless you have no other choice

⚠️ Critical Warning: Cams don’t hold well in icy, sandy, or heavily featured cracks. Don’t rely on them blindly.


❄️ Ice Screws: Trusting Steel on Frozen Water

Placing protection in ice isn’t about strength – it’s about quality of the medium.

✅ Ideal For:

  • Solid, clear, blue ice
  • Vertical or near-vertical terrain
  • Fast anchor building in alpine settings

🛠️ Placement Tips:

  • Use 16–21 cm screws for leading; shorter ones for anchors
  • Screw in perpendicular to the ice, not at an angle
  • Clear surface ice before placement (use pick or adze)
  • Inspect ice – avoid rotten, aerated, or sun-rotted sections
  • Pre-place with speed: warmth from your hand melts the threads

Field Note: In extreme cold, screws can freeze into the ice after placement. Always carry a tool or pick to unjam them if needed.


🏗️ Building Anchors: Principles that Save Lives

Anchors aren’t just multi-point placements – they are life-critical systems.

🧭 The SERENE-A Principle:

LetterMeaning
SSolid placements (bomber gear)
EEqualized load between points
RRedundant components
EEfficient (quick to build/manage)
NNo extension (in case one piece fails)
AAngle (keep ≤ 60° for ideal force distribution)

Golden Rule: Build as if your life, your partner’s life, and your descent depend on it – because they do.


🧠 Field-Proven Protection Placement Tips

  • Look from different angles. A placement might look good from one view but reveals flaws from above or below.
  • Bounce test gently (especially with nuts or peckers) – not violently.
  • Use alpine draws to reduce rope drag and gear walking.
  • Back up questionable placements – especially on sketchy leads.
  • Learn to read rock: Sandstone, granite, limestone all behave differently.

Pro Insight: In high-altitude climbs, you may need to build anchors with what’s available – horns, boulders, ice bollards. Learn to improvise safely.


🧱 Common Mistakes and How to Avoid Them

MistakeRiskHow to Fix It
Over-cammed placementsHard to clean, may pop under loadAim for 50–70% retraction
Not extending gearRope drag, gear walkingAlways use slings or alpine draws
Placing in soft/loose rockProtection fails under loadTap rock before placing; check integrity
Ignoring fall directionGear fails or shiftsAlign stem or wire with anticipated fall
Building anchors with poor anglesForce multiplies on gearKeep angles under 60°; use sliding-X or quad anchor techniques

⛏️ Final Reflections from the Vertical World

Placing protection is not just a technical act – it’s a mindset.

In moments of storm, exhaustion, or fear, your placements reflect your discipline, judgment, and experience. You don’t need the fanciest rack or the most expensive cam – you need skillawareness, and the ability to improvise without panic.

I’ve seen a single nut hold a 20-meter leader fall in Patagonia. I’ve also seen shiny new cams rip because they were poorly placed in icy cracks.

Respect the craft. Learn to trust your placements – because one day, they will need to trust you back.

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