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Petit Grepon — South Face

RMNP, CO III 5.8 Alpine Trad 8 pitches / 4.5-mi approach alpine Lightning & altitude

🚐 Join the caravan

🥾 Big alpine day / bivy 🧭 4.5-mi to Sky Pond, then talus 🚙 Paved to Glacier Gorge TH (timed entry) 🦟 Mosquitoes at Sky Pond in July ❄️ Lingers on the approach early season

A slender granite blade above Sky Pond in RMNP. The South Face (IV 5.8, ~8 pitches) is one of the Fifty Classic Climbs, finishing on a famously tiny knife-edge summit. Far more contained than the Cirque traverse — a single spire on a big day from Glacier Gorge (~4.5-mi approach): classic alpine multipitch without the multi-day commitment.

🧗 Routes

South FaceIV, 5.8
The line — 8 sustained pitches to the knife-edge summit. Fifty Classic Climbs of North America.
More Sky Pond spires if you want to link up.

🎒 Gear & food

Rack: Single to #3 (doubles 0.5-2 nice), set of nuts, ~8 alpine draws.

Ropes: 70m single or 60m doubles — the descent raps want two ropes.

Footwear: Trail runners / approach shoes for the 4.5-mi approach; rock shoes on route.

🪢 Skills needed

  • Alpine multipitch trad
  • Efficient movement / simul to beat afternoon storms
  • Multi-rappel descent off the spire
  • Alpine route-finding

⏰ Start & altitude

🌄 Timing: Bivy at Sky Pond or pre-dawn from Glacier Gorge TH. On route by ~7 AM; off the summit by noon — RMNP afternoon lightning is daily and lethal.

🫁 Altitude & sun: TH ~9,240 ft / summit ~12,000 ft. AMS flag from sea level — acclimatize a day. Glacier glasses + SPF on the exposed face.

✅ Before you leave the trailhead

Auto-built from this dossier — ticks save on this device.

🏕️ Land · camp · water · permits

Camp:

  • Sky Pond basin bivy (RMNP permit) or a long single-day push from Glacier Gorge TH

💧 Water: Filter from Sky Pond / the basin streams

📋 Permits: RMNP bivy permit ($30 flat, routes >=4 pitches) if camping; park entrance + summer timed-entry vehicle reservation.

⚠️ Hazards · fire · emergency

  • Afternoon lightning — be off by noon
  • Loose blocks + committing rappels
  • Altitude ~12k

🪂 Bail / retreat: Rappel the route (the South Face raps down the line — bring two ropes). Committing above mid-height; keep anchors ready at each station.

🌤️ Live conditions

🟢 Send window: Tue
Sun
☁️
54° 30°
💧11%
💨26
Mon
☁️
57° 33°
💨21
Tue
🌤️
63° 34°
💨21
Wed
☁️
66° 37°
💨28
Thu
☀️
66° 30°

Auto-updated 21h ago · °F · tap a link for the mountain-specific picture ↓

🦟 Mosquitoes at Sky Pond, July

👀 In the field

Tap any for ID, edibility & first-aid.

📍 Nearby & other interest

  • The Saber & Sharkstooth (Sky Pond)
  • The Spearhead — same Glacier Gorge zone, you already have it
  • Petit Grepon pairs naturally with a Sky Pond basecamp

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