Climbing Mt. Hood
Climbing at a Glance
The Northwest Avalanche Center issues daily avalanche and mountain weather forecasts early winter through spring.
National Weather Service forecast links:
Outfitter/guide organizations currently authorized to conduct climbing services on Mt. Hood:
Time of Year
- Late spring and early summer are the most popular time of year to climb most summit routes. While hazards exist every month of the year, conditions during this window are typically better.
- During late summer and fall, rockfall is significant and nearly impossible to avoid and glacial features like crevasses are more exposed.
- Winter months can offer outstanding climbing conditions, but conditions can change quickly with winter storms.
Time of Day (south side routes)
- Most climbers time their climb to reach the summit at sunrise. This helps mitigate rockfall and icefall hazards, which tend to increase as the day warms. Climbers need to evaluate their climbing ability and speed to determine their start time. \Some climbers complete their climb in one day, starting between 12 a.m. and 2 a.m. Others start the day before and make camp around 8,800 to 9,400 feet to shorten their summit day climb.
- The key is to be away from rockfall areas before the heat of the day.
- Group size limit is 12.
- Mount Hood Wilderness Restrictions & Guidelines apply within Mt. Hood's upper reaches.
- Please carry one or more WAG bags (human waste pack out bags) and use them if you need to poop while on the mountain. WAG bags are available free of charge at the Climbers Registration area at Timberline. No one wants to see human waste on the mountain. Pack yours out!
Portable toilets are available in the Salmon River parking lot, near the snow Climber's Trail, at Timberline. The restroom in the Climber's Registration area near the entrance to the Wy'East Day Lodge at Timberline is also open for the season.
Some trailheads require a day use fee. View a list of available recreation passes that may be used in lieu of day use fee payment.
Oregon Sno-Park permits are required November 1 through April 30 at all sno-parks (excluding Billy Bob Sno-Park), including all Timberline parking lots and the Tilly Jane Sno-Park.
Common Hazards
Avalanche accidents and fatalities occur every year on cascade peaks. While most common in winter, weather can quickly create unstable snowpack conditions and avalanche danger any month of the year.
High on Mt. Hood, most avalanches occur during and after stormy periods of snowfall and wind, but some avalanche problems can persist for extended periods and warming or rain can create wet snow avalanche problems.
All summit routes include travel in avalanche terrain. Climbers, skiers, and snowboarders should all know how to identify avalanche terrain and check daily avalanche forecasts from the Northwest Avalanche Center available winter through early spring. The NWAC website and avalanche.org offer many other conditions and educational resources. A beacon, probe, and shovel, paired with snowpack stability assessment and avalanche rescue training, are often crucial for reasonably safe upper mountain travel.
Busy summit climbing days tend to create crowding in the upper sections of Mt. Hood’s south side climbing routes. Climber congestion can slow you down which increases exposure time to hazards like rockfall and icefall. Upslope climbers can also create or become hazards themselves by dropping heavy items like a water bottle or taking a sliding fall above you.
Weekdays typically offer a less crowded upper mountain, and starting very early on nice weather weekend days can help beat the crowds. A crowded upper mountain can be a reason to abort your climb just like any other potential hazard.
Do not use rope team glacier travel techniques, or “long roping,” in busy south side summit routes like the Old Chute area. Falling rope teams have caused catastrophic accidents in the past.
Many deep holes and cracks exist in the snow and ice across the mountain. Glaciated terrain typically holds deep crevasses, including the bergschrund at the top of the Hogsback ridge in the south side crater area. Fumarole heat, especially in the Devil’s Kitchen and Hot Rocks areas in the south side crater, can produce similarly deep holes and cracks in the snow.
When snow covered, crevasses and fumarole holes might hold supportable snow bridges, but they’re often masked with thin snow bridges than can easily break under your weight. Cracks can also be open and obvious but are often larger than they appear.
Research your route to know if it crosses glaciers and potentially crevassed areas. Glacier travel techniques and/or careful route-finding to avoid glacial features can help you avoid a catastrophic fall into these deep cracks.
Climbers are struck by falling ice or rock every year. These chunks can range from small and painful to large and deadly. Warming tends to melt the ice that freezes loose rock and accumulated rime ice to the mountain, causing natural icefall and rockfall. Upslope climbers can dislodge ice and loose rock in any weather.
South side summit routes are particularly exposed to icefall and rockfall. Icefall is most frequent on particularly warm days, especially following a stormy period, and remains a potential threat until all the ice melts late in summer. Melting snow and ice exposes loose rock, so rockfall tends to increase as spring and summer progress. The upper mountain is mostly a pile of loose rock, and every summer there comes a point when we no longer recommend summit climbs due to frequent rockfall.
Climbing and descending early in the day, before warming ramps up natural icefall and rockfall, can reduce your exposure to these overhead hazards. Consider avoiding the south side crater, and other areas in the icefall and rockfall line of fire, on truly hot days. Regardless of weather, wear a helmet and minimize your time downslope of ice accumulations or loose rock.
Sliding falls on steep snow slopes have produced many injuries and fatalities on Mt Hood. A trip or stumble can easily become a high-speed tumbling slide on icy surfaces and it’s also possible to take a sliding fall on cold, dry wind-hardened snow. Melt/freeze cycles, driven by warming from the sun, air temperatures, or rain, frequently produces the hard, refrozen snow or robust slick crusts that pose the greatest sliding fall risk to climbers, skiers, and riders.
Self-arrest is difficult to impossible when snow is frozen solid, and preventing a fall in high consequence terrain is the best defense.
Crampons that fit well on stiff-soled mountaineering boots, an ice axe or two, and a strong ability to use them to stay on your feet are crucial for any summit route. Rope belay systems can prevent a fall and are typical on advanced routes. You can manage your exposure to high-consequence long, sliding fall terrain by looking for downslope hazards in terrain ahead of you. Rocks, cliffs, big slopes, crevasses, and fumarole melt holes downslope all raise the consequence of a fall. Assess snow surface conditions and your ability to truly prevent a fall before you commit to ascending, descending, or traversing any steep snow slope.
Mt. Hood is notorious for rapidly changing weather. Powerful storms can arrive quickly any time of year bringing harsh cold, wind, and reducing visibility which challenges your route-finding. Anywhere above treeline quickly becomes disorienting in a white-out and there is no protection from the elements.
Always check short-range weather forecasts immediately before ascending to prevent weather surprises, and also watch for approaching clouds when on the mountain. Bring extra warm clothes and a reliable navigation, like a smart phone with a mapping app provided you can maintain a charged battery.
Before, During, & After
- Be knowledgeable and practiced in mountaineering skills. Know how to use your equipment.
- Consider taking a guided climb with experts at Kaf Adventures or Timberline Mountain Guides.
- Be in good physical condition. The climb is over 5,000 feet of elevation gain!
- Check the weather, avalanche forecasts, and climbing condition information.
- Plan your route. All routes are technical climbs. There are no hiking trails to the summit.
- Purchase your Mt. Hood Climbing Permit on Recreation.gov any time before the start of your climb.
- Climb with a competent and experiencer partner(s).
- Carry emergency supplies including extra clothing, food, water, and a reliable communication device.
- Tell someone at home your destination, route, time due back, and equipment you are taking. If you are overdue, that person should call 911.
- Fill out a climber's registration form at the Climbers Registration area at the Wy'East day lodge, if starting at Timberline.
- Wilderness permits are required year-round on the south side routes and May 15 to October 15 for other areas within the Mount Hood Wilderness. A 3-day climbing permit counts as your wilderness permit. Annual climbing permit holders must also complete this online form or a paper wilderness permit.
- Pick up a WAG bag for human waste. These bags are free and available year-round in the Climbers Registration area and local ranger stations.
- Camping: Most south side climbers who camp use the Triangle Moraine area, 200 to 800 vertical feet above the top of the Palmer lift (8,600 feet in elevation).
- Be aware of potential mountain hazards like rockfall and icefall, avalanches, glacial features like crevasses, fumarole holes, and hard, slick snow conditions that could allow a long sliding fall. Deteriorating weather can advance quickly and drastically change conditions. All of these hazards have produced fatalities on Mt. Hood.
- Many mountain hazards change quickly. Expect different conditions and associated hazards every time you are on the mountain.
- Do not hesitate to turn back because of poor conditions.
- Poor visibility, particularly when descending, can pull you off-route. Use your compass and/or GPS. Following the fall line from Crater Rock will pull you down into Zigzag Canyon, not back to Timberline Lodge.
- Leave No Trace within Mount Hood Wilderness.
- Do not walk up or down the groomed ski runs of the Palmer snowfield during spring and summer. Climb to the east of the Palmer snowfield, at all hours, to avoid the groomed runs and terrain features.
- Rest before driving. There have been significant motor vehicle accidents from climbers falling asleep driving after the climb.
Climbing Permit Basics
- The Mt. Hood Climbing Permit is required for all people traveling above 9,500 ft. elevation.
- The permit is required year-round. Timberline Trail, trailheads, and all of the ski areas on Mt. Hood are below this elevation and do not require a climbing permit.
- Purchase on Recreation.gov any time before the start of your climb. 3-day permits cost $20 and annual permits cost $50.
- Free wilderness permits are required year-round on the south side routes and May 1 to October 31 for other areas within the Mount Hood Wilderness, if provided at the trailhead. A 3-day climbing permit counts as your wilderness permit. Annual climbing permit holders must also complete the Mt. Hood Wilderness Permit online form or a paper wilderness permit.
- Climbing Register forms are highly recommended. They provide rescuers with crucial information if a rescue is initiated on your behalf. Complete these forms at the Climbers' Registration area at Timberline.
- The Forest offers a 3-day permit and an annual permit.
- 3-day permits are $20. Single trip climbers can select a 3-day window for their climbing permit to allow for climbing in safer conditions if one day of the window has poor conditions.
- Annual permits are $50 and are good for 12 months from the date of purchase.
- Climbers can purchase permits on Recreation.gov up to the start of their climb. Permits are valid immediately and no advance reservations are required.
- There is no limit on the number of climbing permits issued daily or annually.
- You can save a digital pass to your mobile device or print a copy and bring it with you.
- While one person can purchase permits for multiple climbers in a party, at least one member of the climbing party needs to have a copy of all permits for each climber while above 9,500 feet.
- The 9,500-foot elevation permit requirement is well above all of the ski areas and the Timberline Trail. A climbing permit is only required for those traveling above 9,500 feet. On the South Climbing Route, 9,500 feet is roughly at the top of Triangle Moraine.
- The permit does not cover parking. Climbers parking in an Oregon Sno-Park (such as Timberline Lodge) between November 1 and April 30 will need a current Oregon Sno-Park Permit.
- A 3-day climbing permit also serves as one’s wilderness permit for the Mount Hood Wilderness. Annual climbing permit holders must also complete this online form or a paper wilderness permit.
- The Mt. Hood Climbing Permit requirement started January 1, 2024.
- Mt. Hood’s popularity as a climbing destination has resulted in public health and safety issues, including increased technical search and rescue operations and human waste in sensitive ecosystems. The Mt. Hood climbing ranger program needs financial support to help manage and address these issues.
- Many peaks in the Cascades Range already have a required climbing permit fee, including Mt. Rainier, Mount St. Helens, Mt. Adams, and Mt. Shasta. Permit fees help the Forest Service and National Park Service manage climbing opportunities for the benefit of the public.
- Permit fees directly fund the Mt. Hood Climbing Ranger program. Among other services, permit fees will be used to:
- Hire climbing rangers to provide climbing ranger patrol along popular routes.
- Provide climbing conditions reports & other public climbing condition information.
- Improve climber safety education.
- Reduce human impacts on the natural landscape.
Safety Resources
Personal Locator Beacons are advised for climbers, but these devices do not replace good judgment and basic climbing skills.
Universal Transverse Mercator (UTM) geographic coordinate system
UTM coordinates in NAD 27 CONUS datum for south side landmarks:
- Start of climbers path at Timberline: 10T 0601216 5020342.
- Silcox Hut: 10T 0601205 5020834.
- Midway Terminal on Palmer Lift: 10T 0601286 5022705.
- Top of Palmer Lift: 10T 0601490 5023387.
- Triangle Moraine: 10T 0601831 5024201.
- Devils Kitchen, start of traverse leading to the Hogsback: 10T 0601941 5024562.
- Hogsback: 10T 0601970 5024771.
This list is a starting point. Route selection and conditions may require more gear.
- Waterproof, lug-soled climbing boots
- Synthetic or wool long underwear
- Insulating clothing and extra clothing
- Weatherproof outer shell
- Gloves/mittens and extra pair
- Glacier sunglasses with side shields
- Ski goggles
- Sunscreen
- Backpack
- Extra food, water, and clothing
- Headlamp
- Personal Locator Device
- Avalanche beacon, probe, and shovel
- Helmet
- Ice Axe
- Crampons
- Other climbing gear, potentially including harness, rope, pickets, ice screws, and other hardware
- First Aid Kit
- Emergency Kit including whistle, space blanket, knife, lighter
- Topographic map, compass, altimeter GPS device
- WAG bag for human waste (free and available year-round in the Climbers Registration area in the Timberline Day Lodge)