[1] Owned and managed by Boyne Resorts, it is 52 miles (80 km) east of downtown Seattle on Interstate 90.

[3] Booth Creek sold The Summit to CNL Lifestyle in 2006, but continued to operate the resort under a lease.

[3] CNL Lifestyle sold Booth Creek in a batch of resorts to Och-Ziff Capital Management in 2016.

Of the four base areas, only Alpental is located north of I-90 and is known for its advanced and backcountry terrain, including some of the steepest runs in the state.

The territory of Alpental ski area was first owned through mining claims by early prospectors of the valley.

To help out with their plan, they enlisted Warren Miller to produce a promotional video simply titled "Alpental".

To gain access to the area, they had to reach agreement with the Sahalie Ski Club to allow a road through their property.

Alpental ski area agreed to maintain this section of road at their cost for the Sahalie group in exchange for this access for 99 years.

Operations were turned over to Ski Lifts, Inc. co-owned by Jim Parker and Chauncey Griggs, who had been the concessionaire since 1937, the year they added rope tows to the park.

Then the Summit at Snoqualmie was sold to Boyne Mountain, a family owned corporation consisting of nine resorts located in the United States and Canada.

In 1967, the Intermediate Chair was installed replacing a Hall T-bar, followed by Condominium (which serviced lower Hog Wild) and then Edelweiss in 1970 and 1972, respectively.

In 1986, new terrain was added on the south end called Silver Fir, and in 1988, a triple chairlift of the same name was installed in the area.

In 2019 the Holiday Riblet double chair was replaced with a new Doppelmayr fixed grip quad with a loading carpet.

The area was purchased in 1980 by Pac West and expanded terrain to the north in 1986, but they too filed bankruptcy in 1988, when Chair 1 stopped working.

Alpine operations returned for the 2010–2011 season with the installation of the used Silver Fir triple chair from Summit Central on the front side as well as reopening terrain in Hidden Valley re-using a combination of parts from the old Keechelus and Easy Gold double chairs.

The fixed-grip quad chair featuring an easy-load conveyor system was built and installed by SkyTrac, an American chairlift company based in Salt Lake City, Utah.

The Rampart chairlift was a long-awaited addition to Summit East and increased uphill capacity substantially while opening up a sizable portion of glade skiing in the area.

The chairlift is located on the northern facing slopes of the Summit East ski area.

It was proposed to open for the 14-15 ski season, but due to lack of snow and storm damage, it was unable to be used.

In addition to the cross-country ski trails at the Summit at Snoqualmie, there are several miles of cross-country ski trails that are maintained by Washington State Parks and are accessible from the Sno-Park adjacent to the Summit East base area.

[20] The runs are approximately five hundred feet long and use magic carpets, which replaced two handle-tow lines.

[21] The Pacific Crest chair lift runs during the summer months to provide scenic views and access to hiking areas.

[24] It also offers shuttle service from the Summit Bike Park at Silver Fir to the Hyak trailhead.

[26] Alpental is best known for its expert terrain in contrast with intermediate runs under the cliff, but its lifts are aging, and capacity is very low.

[28] Originally, the Summit at Snoqualmie was a winter resort, but integrated some summer activities like music and scenic lift rides.