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PermitCast · live scanner data

5,237,781

availability scans since July 2026

Every one of them asked a booking system the same question: is anything open yet? These are the answers.

Set a permit alertHow we measure this

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What are the odds on yours?

Pick one of the permits we have a PermitCast for.

98 of 98 permits

King Range Lost Coast Trail Overnight Permit

Ranked 1 of 98 by the next 7 days

Next 7 days

75–85%

Good chance

14 completed 7-day windows · 16 weeks with scans

Next 14 days

70–80%

Good chance

7 completed 14-day windows · 16 weeks with scans

We check this permit about every minute.

Where it sits among all 98

0%100%
Get alerts for this permitSee its scan history

Each range comes from a handful of completed windows.

How long you have

An Enchantments Colchuck Zone Permit opening is usually gone inside 2 minutes

We timed every opening from the scan that first saw it to the scan that found it gone. On the permits we can time finely enough, most were taken well inside the hour.

0%25%50%75%100%015304560% still unclaimed, minutes after we caught itEnchantments Colchuck Zone Permit: 100% unclaimed when we caught itEnchantments Colchuck Zone Permit: half were taken inside 2 minutesEnchantments Colchuck Zone Permit: 10% still unclaimed at 60 minutesEnchantments Snow Zone Permit: 100% unclaimed when we caught itEnchantments Snow Zone Permit: half were taken inside 2 minutesEnchantments Snow Zone Permit: 20% still unclaimed at 60 minutesEnchantments Core Zone Permit: 100% unclaimed when we caught itEnchantments Core Zone Permit: half were taken inside 3 minutesEnchantments Core Zone Permit: 15% still unclaimed at 60 minutesSequoia & Kings Canyon Mount Whitney Day Hike Permit: 100% unclaimed when we caught itSequoia & Kings Canyon Mount Whitney Day Hike Permit: half were taken inside 45 minutesSequoia & Kings Canyon Mount Whitney Day Hike Permit: 31% still unclaimed at 60 minutes

2 min

Enchantments Colchuck Zone Permit

90% gone within the hour · 50 openings

2 min

Enchantments Snow Zone Permit

80% gone within the hour · 46 openings

3 min

Enchantments Core Zone Permit

85% gone within the hour · 58 openings

45 min

Sequoia & Kings Canyon Mount Whitney Day Hike Permit

69% gone within the hour · 26 openings

Dots are measured points: the start, the median, and the share still open at 60 minutes. The line between them is drawn straight, not modelled. Each median is published as an upper bound, so the real figure is that or faster. Only permits timed finely enough qualify: a figure needs measurement resolution under 15 minutes and at least 10 openings that stayed gone. The full rule.

The spread

The odds are not the same on every permit

Every permit we have scanned long enough, ranked by the chance we catch it opening in the next seven days. Each bar is a range, because the honest answer is a range.

  1. King Range Lost Coast Trail Overnight75–85%
  2. Mount St. Helens Climbing75–85%
  3. Murphy Hogback A Campsite70–80%
  4. Enchantments Core Zone70–80%
  5. Idaho Wild Rivers Middle Fork Salmon River70–80%
  6. Zion The Narrows Top-Down70–80%
  7. Canyonlands White Rim Road65–75%
  8. Colorado Plateau Rivers Dinosaur NM Green River65–75%
  9. Colorado Plateau Rivers Dinosaur NM Yampa River65–75%
  10. Dead Horse Point Moenkopi Yurts65–75%
  11. Dead Horse Point Wingate Hike-In Tent Sites65–75%
  12. Dead Horse Point Wingate Yurts65–75%
  13. Enchantments Colchuck Zone65–75%
  14. Enchantments Snow Zone65–75%
  15. Grand Canyon Rim-to-Rim65–75%
  16. Mount Tamalpais Steep Ravine Environmental Camp65–75%
  17. Snow Canyon Hike-In Camping Sites65–75%
  18. Vermilion Cliffs Coyote Buttes South65–75%
  19. Zion The Subway65–75%
  20. Chesler Park60–70%
  21. Elephant Canyon60–70%
  22. Peekaboo60–70%
  23. Inyo Mt. Whitney Mountaineer's Route60–70%
  24. Conundrum Hot Springs60–70%
  25. Lodgepole High Sierra Trail60–70%
  26. Sequoia & Kings Canyon Mount Langley via Cottonwood Lakes60–70%
  27. Big Spring Canyon55–65%
  28. Lost Canyon55–65%
  29. Grand Canyon Havasupai Gardens Campground55–65%
  30. Great Smoky Mountains LeConte Lodge Reservations55–65%
  31. Havasupai Campground55–65%
  32. Mt Whitney Trail Crest Exit55–65%
  33. Wooden Shoe Canyon50–60%
  34. Broken Top50–60%
  35. Mount Rainier Wonderland Trail50–60%
  36. North Cascades Cascade Pass Zone50–60%
  37. North Cascades Copper Ridge Loop50–60%
  38. Kearsarge Pass (JMT)45–55%
  39. Piute Pass (North Lake)45–55%
  40. Maroon Bells-Snowmass Four Pass Loop45–55%
  41. Sequoia & Kings Canyon Mount Whitney Overnight45–55%
  42. Glacier Point to Little Yosemite Valley45–55%
  43. Aravaipa Canyon Wilderness40–50%
  44. Arches Fiery Furnace Day-Use40–50%
  45. Salt Creek40–50%
  46. North Cascades Backcountry40–50%
  47. Sequoia & Kings Canyon Mount Whitney Day Hike40–50%
  48. Happy Isles to Little Yosemite Valley40–50%
  49. Happy Isles to Past LYV (Donohue Pass eligible)40–50%
  50. Benson/Tenas35–45%
  51. Big Pine Creek North Fork35–45%
  52. Bishop Pass (JMT)35–45%
  53. Fish Creek35–45%
  54. High Trail PCT (JMT)35–45%
  55. JMT North of Devils Postpile35–45%
  56. JMT South of Devils Postpile35–45%
  57. Little Lakes Valley35–45%
  58. McGee Pass35–45%
  59. Red Cones - Mammoth Pass35–45%
  60. Sabrina Lake35–45%
  61. Snowmass Lake (above 10,800')35–45%
  62. Point Reyes Coast Camp Reservation35–45%
  63. Point Reyes Wildcat Camp Reservation35–45%
  64. Rocky Mountain Longs Peak Wilderness Permit (Overnight)35–45%
  65. Yellowstone Bechler River Area35–45%
  66. Gooseberry B Campsite30–40%
  67. Big Pine Creek South Fork30–40%
  68. Lamarck Lakes30–40%
  69. Shadow Creek (Agnew Meadow)30–40%
  70. North Cascades Ross Lake30–40%
  71. Olympic Coast Trail30–40%
  72. Olympic Enchanted Valley30–40%
  73. Grand Canyon Backcountry25–35%
  74. Havasupai Lodge Reservation25–35%
  75. Cottonwood Lakes25–35%
  76. Cottonwood Pass (PCT)25–35%
  77. Mono Pass (Rock Creek)25–35%
  78. Tyee Lakes25–35%
  79. Crater Lake25–35%
  80. Beehive Meadows (Hetch Hetchy)25–35%
  81. Tam McArthur Rim20–30%
  82. Central Cascades Overnight20–30%
  83. Colorado Plateau Rivers San Juan River20–30%
  84. Great Smoky Mountains Smokies Backcountry20–30%
  85. Duck Pass (JMT)20–30%
  86. Minaret Lake20–30%
  87. North Fork Lone Pine Creek20–30%
  88. Pine Creek Pass (JMT)20–30%
  89. River Trail (Agnew Meadow)20–30%
  90. Olympic Hoh River Corridor20–30%
  91. Olympic Seven Lakes Basin20–30%
  92. Paria Canyon-Vermilion Cliffs Paria Canyon Through-Hike20–30%
  93. Vermilion Cliffs Paria Canyon Overnight20–30%
  94. Mirror Lake to Snow Creek20–30%
  95. Bears Ears Grand Gulch15–25%
  96. Grand Teton Climbing (Overnight)15–25%
  97. Grand Teton Paintbrush-Cascade Loop15–25%
  98. Grand Teton Teton Crest Trail15–25%

chance our scanner catches an opening in the next 7 days

The scale

Lowunder 31%Moderate31–60%Good60% and up

98 permits, from 15–25% up to 75–85%. Each range is computed from a handful of completed seven-day windows and pulled toward a pooled average, so a short record cannot run away with itself. The permits with enough history are also the ones people set the most alerts on, so this set is not a random sample of the catalog.

When to have an alert on

Half of all openings land within 16 days

For every opening we caught, we measured the gap between catching it and the night it was for. The busiest stretch is one to two weeks before the trip.

0–4 days out: 3,056 openings5–9 days out: 2,937 openings10–14 days out: 2,302 openings15–19 days out: 1,595 openings20–24 days out: 1,364 openings25–29 days out: 1,114 openings30–34 days out: 959 openings35–39 days out: 845 openings40–44 days out: 695 openings45–49 days out: 224 openings50–54 days out: 338 openings55–59 days out: 266 openings60–64 days out: 170 openings65–69 days out: 147 openings70+ days out: 1,754 openingsmedian 16 days020406070+days between us catching the opening and the trip date

7–34

days out, middle half of openings

17,766

openings measured

83

days out, 95th percentile

This is the shape of the openings we have seen, rather than of every opening that exists: a date enters the sample when somebody has an alert on a window that covers it, so the curve carries our alert holders’ travel dates as well as the providers’ behavior. Permits whose openings are mostly fetch noise are excluded.

What sits behind it

Openings we caught and confirmed

A forecast is only worth what the scanning behind it is worth. These are the openings our scanner caught and that stayed gone, on the permits whose openings we can measure cleanly.

1,563

openings caught and confirmed

133

permits they were caught on

2,010,275

scans in the last 30 days

Where these odds come from

Every figure here is measured from openings our own scanner caught, and recomputed once a day. Each one is the chance our scanner catches at least one opening on that permit inside the window shown. How we calculate this

Every permit we forecast

The whole list, by where it is

One link per permit that has a forecast, gathered under the park it sits in. It grows as more permits build up enough scan history to forecast.

The number beside each permit is its place in the same 7-day ranking the lookup above uses, out of 98.

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