Timberline Lodge ski area is the ski and snowboarding area of Timberline Lodge, a National Historic Landmark in the U.S. state of Oregon. It is one of a few ski areas in the United States with most of the skiable terrain below the main lodge. It is located on the south face of Mount Hood, about 60 miles (95 km) east of Portland, accessible via the Mount Hood Scenic Byway.

The lodge was constructed between 1936 and 1938 as a Works Progress Administration project during the Great Depression. That year, Timberline opened as Oregon's first destination ski resort with a portable rope tow. The next year, the Magic Mile chairlift opened, as well as Silcox Hut, which sits about one thousand vertical feet (300 m) and a mile (1.6 km) above the main lodge, and was the original unloading and warming hut.

Summer skiing and summer race camps began at Timberline in 1956. Before the Palmer chairlift was constructed in 1983 (which provides access above the 7,000-foot (2,100 m) level), the conditions at Timberline allowed skiing from the Mile November through July or August. With the Palmer, a skiable surface is available year-round. Timberline is the only ski area in the states with lift accessed skiing and snowboarding all twelve months of the year. Ski and snowboard camps draw thousands of people to the slopes during the months of June, July and August.

The Magic Mile chairlift was the longest chairlift in the world, and the second chairlift, of those built to be a chairlift when it opened in 1939. Financial troubles operating the Lodge and World War II closed it for several years during the 1940s and 1950s. The ski area has successfully operated since 1956.

The original Palmer chairlift opened for 1978 summer ski season on May 8. It was a fixed double chair in basically the same location as the present chair, with the base station near Silcox Hut.

The current Palmer chairlift was completed in 1996, and is built to withstand wind gusts of over 100 miles per hour (160 km/h) and 200 inches (510 cm) of snow. Its construction time was less than six months due to a limited building season imposed by the local weather conditions.

The Jeff Flood Express detachable high speed quad chair opened for the 2007-2008 ski season. With the new lift, Timberline added the Still Creek Basin to skiable terrain on the lower mountain which almost doubles the area below the timberline, which provides much needed capacity on days with wind or limited visibility when the Magic Mile and Palmer are unable to open. Jeff Flood also improves connectivity to Stormin' Normin and Magic Mile lifts from the lower mountain.

Thanks to the added terrain accessible from Jeff Flood, if the Palmer lift is open, it is possible to ski a non-stop run over 3.5 miles (5.6 km) in length with elevation change of about 4,000 feet (1,200 m).

As of 2019, information has been leaked that there will eventually be a gondola that connects Summit Ski Area to Timberline Lodge. Not much is known about this project, except for the fact that it could be completed in the next 10 years.

In 2020, the Pucci chairlift, which used to be a triple fixed-grip lift, was replaced with a quad detachable lift.

• 4,540' Winter (using chairlifts, Palmer SnowCAT and Resort Shuttle Service)
• 2,166' Winter (only using chairlifts)
• 2,500' early Summer (April - July)
• 1,530' late Summer (July - October)

Timberline categorizes the terrain as beginner 20%, intermediate 50%, advanced 30%. However, the Forest Service published an environmental impact statement containing more detailed information:

Terrain categorization by area and comfortable guest usage
based on industry standard terrain density

Full ski area (Winter) Upper mountain closed (40% of Winter days) Terrain type Terrain definition slope gradient Acres Rider capacity † Capacity distribution Acres Rider capacity † Capacity distribution Beginner 8% to 12% 1.4 acres (5,700 m) 42.6 1% 1.4 acres (5,700 m) 42.6 3% Novice to 25% (30% short pitches) 37.6 677.2 14% 37.6 677.2 48% Low Intermediate to 30% (35% short pitches) 136.8 1,914.8 40% 23.6 329.8 23% Intermediate to 40% (45% short pitches) 55.5 555.3 12% 19.0 189.7 13% Advanced Intermediate to 50% (55% short pitches) 223.5 1,564.4 33% 24.1 168.6 12% Expert over 50% 1.3 3.9 0% 1.3 3.9 0% Total   456.1 4,758.2 100% 106.9 1,411.8 100%

† Rider capacity is the number of snowboarders and skiers the terrain area comfortably handles, and is not a measure of lift capacity. Page 7 of the reference details the industry standard, which ranges from 2-5 expert skiers per acre up to 25-35 beginners per acre.

• 7 chairlifts, including 6 high speed detachable quads and one bunny slope double
• 1 magic carpet for ski school use

Chairlift detail

Lift Name Type Top elevation (ft) Bottom elevation Vertical rise Length (ft) Slope (%) Capacity (rides/hr) Speed (ft/min) Lift Manufacturer Year installed Bruno fixed double 5,885 5,840 45 368 12% 630 300 Poma 1987 Molly's Express detach quad 5,835 4,990 845 5,244 16% 1200 1000 Doppelmayr 2000 Pucci detach quad 5,920 5,350 570 3,398 17% 1800 1000 Doppelmayr 2020 Stormin' Norman detach quad 6,245 5,460 785 4,396 18% 1500 1000 Doppelmayr 2000 Magic Mile detach quad 6,990 5,915 1,075 5,359 20% 1600 950 Poma 1992 Palmer Express detach quad 8,470 6,940 1,530 5,468 29% 1800 1000 Doppelmayr 1996 Jeff Flood Express (Still Creek Basin) detach quad 6,020 4,850 1,170 6,506 18% 1800 1000 Doppelmayr 2007

Timberline is one of two ski areas in North America to offer year round skiing, the other one being the indoor ski area Big Snow American Dream in New Jersey. It is scheduled for two weeks closure each September for maintenance. Skiers, snowboarders, and sightseers ride up the Magic Mile chairlift to the Palmer Glacier and its lift, where most of the summer skiing takes place, particularly later in the season. In contrast to winter operations, the lifts are the busiest during the summer ski season Monday through Friday, mostly due to ski and snowboard camps. Besides organized clinics and camps, any intermediate or more advanced member of the public is welcome to ski or snowboard.

Summer ski hours are 7 am to 1:30 pm. During summer ski season, there is no novice or beginner terrain; low-intermediate terrain is available along the Mile. After approximately mid-June, it is necessary to walk at least part of the way to reload the Magic Mile, and feasible to ski to within a few hundred feet of the parking lot until mid-August. On warm days, most skiers leave by late morning due to soft and wet snow conditions. Public skiing is available, but rental gear may be limited. The Palmer lift is limited to skiers and snowboarders only (no foot passengers), with intermediate or greater skills.

Timberline hosts dozens of summer camps enrolling thousands of athletes throughout the summer: a busy mid-week, mid-season day has as many as 1,500 riders. Virtually every snow sport is offered in camps. Ski racing is the most popular, but snowboard and freeski camps are also popular. Mount Hood Summer Ski Camps have been a mainstay in the summer, hosting campers since the 1970s.

The summer camps are mostly organized as week-long sessions, with on-snow activities in the morning and a variety of other activities in the afternoon, such as river rafting, mountain biking, hiking, trampoline, wind surfing, etc.

• The Golden Rose Ski Classic is an annual race which began in 1936; World War II called off the event between 1942 and 1945. It is the oldest known organized ski race in America, and is the only USSA-sanctioned summer race. It normally occurs early June as part of the Portland Rose Festival and attracts the world's top skiers. Previous winners include ski safety binding inventor Hjalmar Hvam (1937), 1948 Olympic gold medalist Gretchen Fraser (1938), John Frazer (1950), Howard Hermanson (1952), Christian Pravda (1954), Chris Ditfurth (1956), Ron Hebron (1957, 1961, 1963 and 1965), Kiki Cutter (1968), Steve Mahre (1974), Bill Johnson (1979 and 1981), Mary Mathews (1982), Phil Mahre (1983), Debbie Armstrong (1983), Eva Twardokens (1984), David Lyons (1984), Tamara McKinney, and David Lyons (1985).
• The Masters Summer Fun in the Sun is a ski race held mid-July.

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  Loading area for the Skiway, an aerial tramway which connected Government Camp and Timberline Lodge from 1951-1956
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  Skiway departs from the lower terminal
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  Rope tow on bunny hill with hotel visible at top.
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  Bunny slope with chairlift. The top and the bottom are both visible as well as the wide, gentle slope.
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  Front of Timberline Lodge in winter with 202 inches (5.1 m) snow
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  Silcox Hut near the top of the Magic Mile sometimes provides hearty lunches and overnight accommodation for small groups
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  Lower terminal of Magic Mile
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  The Bruno's chairlift is a favorite among kids and parents alike
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  Children from 4 to 8 enrolled in Timberline ski school's Bruno's Kids Club often start on this magic carpet
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  The first three jumps of the easiest of the terrain parks at the top of Conway's Corner
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  Timberline offers convenient access for search and rescue teams setting out on December 17, 2006, to search for three missing mountain climbers.
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  The Pacific Crest Trail passes through Timberline's ski area

• List of ski areas and resorts in the United States#Oregon

• History Web Site of the Mount Hood Area www.mounthoodhistory.com