News & Alerts

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Spearhead Alerts

Stay up to date on important information about the Neilson Spearhead Nature Preserve. This section shares trail conditions, closures, and other safety-related updates to help you plan your visit and enjoy the Preserve safely.

12/09/2025 Ice Condition Alert – Current Thickness is 6 to 7 Inches

Sam was out on the lake today and reports approximately 6 to 7 inches of good, clear ice measured about 20 yards from shore. Ice depth can vary depending on location and conditions, so it is important to use caution at all times when traveling on the ice.

Based on today’s measurements, the ice appears suitable for foot travel, including trips across the lake to the Forest Megaphone.

Always check conditions frequently and proceed carefully.

Current Open Trails Map

12/5/2025: Trail Alert – Hazard trees and impassable trails
The Neilson Spearhead Nature Preserve is open, but please be aware that some trails are currently impassable, these are remnants of the June 2025 storm. Trail clearing has been ongoing through the summer, but most maintenance work is now paused for the winter. Clearing will resume once snowpack and conditions make it safe to continue.

Please check our website for updates on which trails are open before your visit.

Current Open Trails Map

News & Updates from the Preserve

Winter Wilds: December Notes from the Preserve
Beth Drost Beth Drost

Winter Wilds: December Notes from the Preserve

Winter has settled in at Neilson Spearhead Nature Preserve, and it is a wonderful time to visit. The preserve is open, and the access road is usually plowed so visitors can get in. Trails are snow covered and mostly not packed at this time, making it a perfect opportunity to bring your

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Today is Give to the Max Day! Help us reach our $2,500 goal to support nature education and improvements at Neilson Spearhead Nature Preserve. Your gift today supports new trail signs, updated maps, and an information kiosk for visitors and students
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