Mailbox Peak

Mailbox Peak is a 4,841-foot-elevation (1,476 m) mountain located in King County of Washington state. It is set west of the crest of the Cascade Range, on land managed by Mount Baker-Snoqualmie National Forest. Mailbox Peak is situated seven miles east of North Bend, and one mile northeast above the Washington State Fire Training Academy. Precipitation runoff from the south side of the mountain drains into the South Fork Snoqualmie River, whereas the north side drains to the Middle Fork of the Snoqualmie. Topographic relief is significant as the northwest aspect rises nearly 4,100 feet (1,200 meters) above the Middle Fork in 1.25 mile. The popular Mailbox Peak Trail gains 4,100 feet of elevation over 5.5 miles.[2] Prior to 2014 when the new trail was completed, climbing Mailbox Peak involved 4,000 feet gain in only 2.6 miles along an unmaintained route that was used for conditioning for major climbs,[4] and recruits from the Fire Training Academy would celebrate graduation by carrying a fire hydrant to the summit.[5] The peak is named for a mailbox at the top which functions as the summit register, but this toponym has not been officially adopted by the U.S. Board on Geographic Names.

Mailbox Peak
Northwest aspect, from Mt. Teneriffe
Highest point
Elevation4,841 ft (1,476 m)[1][2]
Prominence121 ft (37 m)[1]
Parent peakWest Defiance (4,926 ft)[3]
Isolation0.42 mi (0.68 km)[3]
Coordinates47°27′45″N 121°38′22″W[1]
Geography
Mailbox Peak is located in Washington (state)
Mailbox Peak
Mailbox Peak
Location in Washington
Mailbox Peak is located in the United States
Mailbox Peak
Mailbox Peak
Mailbox Peak (the United States)
LocationKing County
Washington state, U.S.
Parent rangeCascade Range
Topo mapUSGS Chester Morse Lake
Climbing
Easiest routeclass 1+ hiking trail

Climate

Mailbox Peak is located in the marine west coast climate zone of western North America.[6] Most weather fronts originate in the Pacific Ocean, and travel northeast toward the Cascade Mountains. As fronts approach, they are forced upward by the peaks of the Cascade Range, causing them to drop their moisture in the form of rain or snowfall onto the Cascades (Orographic lift). As a result, the west side of the Cascades experiences high precipitation, especially during the winter months in the form of snowfall. Because of maritime influence, snow tends to be wet and heavy, resulting in high avalanche danger.[6] During winter months, weather is usually cloudy, but due to high pressure systems over the Pacific Ocean that intensify during summer months, there is often little or no cloud cover during the summer.[6] The months May through October offer the most favorable weather for viewing or climbing this peak.

  • Southwest aspect, from Mt. Washington
    Southwest aspect, from Mt. Washington
  • Southwest aspect, from Cedar Butte
    Southwest aspect, from Cedar Butte
  • North aspect, from Middle Fork Snoqualmie River Road
    North aspect, from Middle Fork Snoqualmie River Road
  • Mailbox Peak's summit mailbox
    Mailbox Peak's summit mailbox
  • Mailbox Peak, seen from Salal Point. Washington State Fire Training Academy at the foot of the mountain. Interstate 90 in lower right. Moolock Mountain in the distance to left.
    Mailbox Peak, seen from Salal Point. Washington State Fire Training Academy at the foot of the mountain. Interstate 90 in lower right. Moolock Mountain in the distance to left.

See also

References
  1. "Mailbox Peak, Washington". Peakbagger.com.
  2. Don J. Scarmuzzi (2021), Day Hikes in Washington State: 90 Favorite Trails, Loops, and Summit Scrambles, West Margin Press, ISBN 9781513267289, p. 126
  3. "Mailbox Peak - 4,841' WA". listsofjohn.com. Retrieved 2022-04-19.
  4. Melissa Ozbek (2017), 75 Great Hikes Seattle, Avalon Publishing, ISBN 9781631214998, p. 139
  5. Craig Hill, Matt Wastradowski (2020), Pacific Northwest Hiking, Avalon Publishing, ISBN 9781640490734
  6. Beckey, Fred W. Cascade Alpine Guide, Climbing and High Routes. Seattle, WA: Mountaineers Books, 2008.
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