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2025-12-29T20:00:00-08:00

* WHAT...Northeast winds 20 to 30 mph with gusts up to 45 mph. * WHERE...A portion of southwest California. * WHEN...Until 8 PM PST this evening. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result.


Mount Islip Mountain Peaks

Last Updated: December 29, 2025

Mount Islip is a prominent peak located in the Pacific Ranges mountain range in Southern California.


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Summary

Standing at an elevation of 8,250 feet, it offers breathtaking views of the surrounding San Gabriel Mountains. Spanning over 3,000 acres, Mount Islip is a popular destination for hikers, mountaineers, and nature enthusiasts.

During the winter season, Mount Islip receives a substantial amount of snowfall, transforming it into a winter wonderland. Snowpack depths can vary widely, ranging from a few inches to several feet depending on the severity of the winter storms. This makes it an ideal location for winter sports such as snowshoeing and backcountry skiing.

Several creeks and rivers are fed by the runoff from Mount Islip. These include Little Jimmy Creek, Crystal Lake Creek, and South Fork Big Rock Creek. These water sources provide vital resources for the surrounding ecosystems and contribute to the overall biodiversity of the area.

The name "Islip" is believed to have originated from the early Spanish settlers who named the mountain after the town of Islip in Suffolk, England. The mountain holds a rich history, including Native American settlements and the exploration efforts of early European settlers.

In conclusion, Mount Islip in the Pacific Ranges mountain range is a majestic peak with an elevation of 8,250 feet. It offers diverse recreational opportunities throughout the year, including winter sports due to its substantial snowpack range. With its numerous creeks and rivers, it plays a significant role in the local ecosystem. The name holds historical significance and reflects the early Spanish influence in the region.

       

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