Mountain Peak

Mailbox Peak peak

Cascade Range, Washington 4,841 ft
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Mailbox Peak rises to 4,841 ft in Pacific-Ranges within the Cascade Range range.

With an elevation of approximately 4,000 feet, it provides breathtaking panoramic views of the surrounding area. The trailhead starts at an elevation of 1,160 feet and ascends relentlessly through dense forest, making it a challenging but rewarding hike. The peak itself is rocky and treeless, providing hikers with unobstructed vistas.

During the winter season, Mailbox Peak receives a significant amount of snowfall due to its higher elevation. The snowpack range can vary depending on weather conditions, but it typically accumulates from November through April, transforming the landscape into a winter wonderland. This makes it an ideal destination for snowshoeing and winter mountaineering, offering a different experience from the summer months.

Several creeks and rivers in the surrounding area receive runoff from Mailbox Peak. One notable creek is the Pratt River, which originates from the mountain and flows into the South Fork Snoqualmie River. This runoff contributes to the pristine water sources in the region, supporting the diverse flora and fauna that thrive in these ecosystems.

The name "Mailbox Peak" is derived from a fascinating legend. In the past, hikers used to leave mementos or messages for others in a mailbox at the summit. It became a tradition for climbers to carry a memento or leave a personal note for future hikers. Although the mailbox has been removed due to excessive weight and damage, the name has stuck and continues to be associated with this majestic mountain.

Sources:
- Washington Trails Association: https://www.wta.org/go-hiking/hikes/mailbox-peak-old-trail
- SummitPost: https://www.summitpost.org/mailbox-peak/151913

For trail conditions and access, search Wikipedia or the local land manager's site. Browse other peaks in the Pacific-Ranges range.

StateWASHINGTON
RangeCascade Range
Elevation4,841 ft
Latitude47.4625°
Longitude-121.6394°
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Regional snowpack

Snowpack near Mailbox Peak

Snow water equivalent and snowpack depth at SNOTEL stations near the peak. Best proxy for what's currently sitting on the summit.

Regional streamflow

Streamflow near Mailbox Peak

USGS streamgauges in the basin drained by this peak. Spring snowmelt from the summit feeds these flows.

Detailed forecast

Plan around incoming weather

Same NOAA / yr.no feed Snoflo's iOS app uses. Watch the precipitation column -- snow at this elevation typically lags the radar signature by a few hours.

Hourly detail

Next 5 days, hour by hour

Temperature line with weather symbols on top, snow + rain accumulation as columns, humidity as a dotted line.

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Deep dive

5-day forecast table

Every 3 hours, broken out across temperature, snow, rain, humidity, and wind.

TimeConditionTemp (°F)Snow (in)Rain (in)Humidity (%)Wind (mps)Wind dir
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Long-term outlook

15-day forecast

Daily temperatures, snow, and rain projected over the next two weeks.

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