Beta preview · the app is in active development and the interface will change.

iOS beta now open

Is The Mountain out? Now in your pocket.

See where Mt. Rainier (Tahoma) is out right now, reported live by people across the PNW, and add your own sighting in a tap. The iOS app is in beta, with Android coming next.

Join the beta waitlist

While you wait for the app, use it in your browser.

  • iOS · currently in beta
  • Android · coming next
Live now

The ultimate app for mountain fans

Report what you see, watch the live map fill in, and check The Mountain's status at a glance.

Not out 2:28 PM from Tanglewilde-Thompson Place

  1. See The Mountain out? Report it!

    • One-tap reporting

      Pick the state that matches what you see and send it in seconds.

    • Five visibility states

      From Not out to Mountain OUT!, with every stage in between.

    • Add a photo

      Back up your report with a picture of what you're seeing. Adding images needs a free profile.

    • No account needed

      Anonymous reports are first-class. Sign up only if you want photos and a streak.

  2. The interactive community map

    • Hex by hex

      Your report snaps to a hexagon and recolors it with everyone else's from that spot.

    • Consensus, not noise

      The color reflects the aggregate, not just the loudest voice.

    • The whole region

      Pan across the PNW to see where The Mountain's out right now.

  3. Today's mountain, at a glance

    • Live status call

      Whether The Mountain's out right now, plus the crowd's consensus.

    • Today's numbers

      First-out time, reports today, and OUT days this week.

    • Visibility history

      The daily share of out reports across 7, 30, and 90 days.

    • Webcams and recent reports

      Nearby cams and the latest sightings as they land.

Keep a record of every sighting

Make an account and every report builds your profile: daily streaks, lifetime stats, and your full sighting history.

  • Day streaks

    Report when The Mountain's out and build a daily streak. Your current run and your all-time longest ride along at the top of your profile.

  • Lifetime stats

    Every report you've ever sent, counted. Your all-time total and personal records, in one place.

  • Your recent reports

    A running history of your latest sightings: what you called, where, and when.

  • Mtn Badges + Tahoma Tokens · coming soon

    Badges and Tahoma Tokens to reward the watchers who show up most for The Mountain. On the way, not live yet.

Privacy-focused by design

We care about this stuff. Here's exactly how it works.

  • Approximate location only

    Your phone snaps your spot to a hexagonal grid cell before anything is sent. We get the cell. We don't get your raw GPS. It stays on your device.

  • Coarse map until it's not noisy

    The public map shows reports at a wider hexagon size until enough people are reporting from a smaller one. No single report ever pinpoints a single person.

  • Accounts are optional

    Reporting and reading the map don't need an account. Anonymous reports are first-class. Sign up if you want a streak and notifications. Skip it if you don't.

What we show the world

Aggregated community consensus, color-coded by how out The Mountain is at each hex cell. Not who reported what.

  • Not out
  • Kinda out
  • Halfway out
  • Mostly out
  • Mountain OUT!

A lot of mountain nerds 🏔️

Built and used by Pacific Northwesterners since 2022.

Mountain watchers
50,000+
@mtrainierwatch on X
Community reports
3,194
and counting
Website live since
2022
app now in beta
“Every time The Mountain’s out, our Instagram and Twitter blow up with tags. It’s awesome, but I can’t keep up. So we built an app to make it dead simple for anyone to share the moment they spot The Mountain out. That’s the whole idea.”
David · Founder, Rainier Watch
Is The Mountain Out app icon

Beta waitlist

Get in line for the beta

Join the waitlist and we'll send your invite the moment a spot opens. iOS is in beta now; Android is coming next.

Which phone are you on? (optional)

We'll reach out when the next wave opens. No spam, just the occasional update, and you can unsubscribe anytime.

🏔️ You're on the list

We'll reach out with your invite when the next wave opens. No spam, just the occasional update, and you can unsubscribe anytime.

App FAQs

  • The iOS app is live in beta on TestFlight right now, with a wider beta launch coming Summer 2026. Sign up above to join the waitlist. Invites go out in waves to people who check the "willing to test" box, as TestFlight spots open up.

  • iOS is first. An Android version is planned for after we've worked the kinks out of the iOS app and the API that powers it.

  • Yes. Reporting, the map, status, and webcams will always be free. We may add optional premium features later (like push notifications) to cover hosting and development costs, but the basics stay free for the community.

  • Faster reporting from your camera and a tighter experience on mobile. Push notifications when The Mountain comes out are planned for the paid "Super Watchers" tier (nothing to announce yet). The website is always the public source of truth. The app is about making it easier to participate from your phone.

  • Sign up above and check the "I'm willing to test" box. We send invites in waves as TestFlight spots open up. No commitment. You can ignore the invite if your schedule changes.

  • We'll email you when the beta opens and when the App Store launch happens, plus the occasional update worth your time. No third-party sharing, and you can unsubscribe anytime.