Cols Atlas — Cycling Climbs for Strava

Explore famous cycling mountain passes directly on Strava route maps. Highlights iconic cols with difficulty-based colors.

🚴 Cols Atlas — 5,000+ Cycling Climbs On Your Strava Map The free Chrome extension that overlays famous mountain passes and cols directly on Strava's route builder. Discover iconic climbs, see start points, view gradient profiles, and plan epic routes. 🌐 Full overview: https://colsatlas.ch ✨ Features • 5,000+ cols across 20+ countries • Color-coded by difficulty (HC, Cat 1, Cat 2, Cat 3) • Start points for every documented climb • Gradient profiles from CyclingCols.com • Filter by length, elevation, slope, gradient • Search by col name in seconds • Works directly inside Strava — no separate app What's new in v1.7.2 - ⚡ \"Show Elevation\" renders much faster in the Route Builder", - ~ Estimated climb stats (length, gain, grade, direction) for cols missing from the database", - "🎯 Better climb detection: no more descents counted as climbs, Tourmalet from Sainte-Marie recognised", - 🔀 New Elevation/Climbs switch to see your climbs in a clear table format", - 🎨 Cleaner side buttons: equal height, orange \"Add this side to route\ What's new in v1.7.0 - 🏔 Climb Timeline: a collapsible overview of every climb on your route, right below the elevation profile — order, distance to summit, summit height and category at a glance. - ➕ Add a climb's start and summit point to your route in one click, instead of two separate taps. - 📝 Summit distance now included in your auto-generated route description. - 🎨 More consistent button colors throughout the panel. - 📍 Fixed: climb labels on saved routes were sometimes shifted too far left for later climbs. What's new in v1.6.0 - 🎯 More accurate climb positions: fixed a bug where climbs near the start or end of your route could be placed up to a few km off — positions are now read directly from Strava's own live route data. - 🐞 Found an issue? Report it in one click: a new in-panel bug report button sends us the details automatically, so problems get fixed faster. - ⚡ Smoother with lots of climbs on screen: off-screen markers are no longer tracked continuously, making busy areas noticeably snappier. - 🔍 Smarter search: accents no longer matter — "Astun" now also finds "Astún". - 🦊 Now available for Firefox, alongside Chrome. - 🔄 New refresh button: quickly re-check climbs on your route after making changes, right from the panel header. v1.5.2 - 📍 Add climbs as waypoints with one click - ⭐ Save up to 20 favorite climbs - 🇨🇭 Country flags in popups and climb lists - ✨ Faster route name and description suggestions - 🏔️ Redesigned, more compact climb popups 📜 Data licensed from CyclingCols.com (non-commercial). Cols Atlas is not affiliated with or endorsed by Strava Inc. 💬 Found an issue? Visit colsatlas.ch ━━━ HOW IT WORKS ━━━ 1. Install Cols Atlas 2. Open any Strava route map (strava.com/routes or strava.com/maps) 3. Coloured col markers appear automatically on top of the map 4. Click any marker to see every documented route to the summit 5. Use the side panel to search, filter, and explore ━━━ WHY COLS ATLAS ━━━ Planning a cycling holiday? Training for an alpine sportive? Chasing famous Tour de France climbs? Cols Atlas turns Strava's flat route-builder into a decision tool. See at a glance which HC climbs are within reach, filter out anything longer than 10 km, or hunt for hidden Cat 2 climbs along your planned route. ━━━ PRIVACY ━━━ No tracking. No analytics. No accounts. No data sent anywhere. Everything runs locally in your browser. Full privacy policy: https://colsatlas.ch/privacy ━━━ DATA ━━━ Climb data sourced from CyclingCols.com, used with permission. Start coordinates geocoded via OpenStreetMap. ━━━ NOT AFFILIATED ━━━ Cols Atlas is an independent project. Not affiliated with, endorsed by, or sponsored by Strava, Inc. ━━━ FEEDBACK ━━━ Found a missing col? Wrong gradient? Email support@colsatlas.ch or use the "Found an issue?" link in the extension. Climb On 🚴‍♂️⛰