RidgeSyncOsmore Pond via Hosmer Brook Trail
Osmore Pond via Hosmer Brook Trail is a 3.3-mile out-and-back in Groton & the Central Highlands, Vermont, climbing 335 ft to a high point of 1,476 ft. It's rated easy, and most hikers need about 1.7 hours of moving time.
Every number on this page is computed from the trail-snapped route geometry and a real elevation profile, not estimated from a map. You can open the full route in RidgeSync to see the elevation profile against your own pace, add camps, and build it into a multi-day trip.
At 102 ft of gain per mile, this is gentler than most of Groton & the Central Highlands, where the average is 196 ft per mile.
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Osmore Pond via Hosmer Brook Trail climbs 335 ft across 3.3 miles, averaging 102 ft of gain per mile — a gentle grade. It's an out-and-back: 1.6 miles each way, and you get a second look at the same terrain on the descent.
RidgeSync estimates moving time from the trail-snapped geometry and the real elevation profile rather than a flat miles-per-hour figure, which is why the estimate below is usually slower than a generic hiking calculator on steep New England tread.
Trailhead, parking and water
The start point is a trail junction rather than a formal lot, so check parking before you commit: roadside pull-offs are frequently posted, and town roads near trailheads are often unplowed or seasonally closed.
No mapped water sources sit within 0.75 mi of this route, so carry what you need for the full distance — generally two liters for a half day, and more in summer heat.
What you'll see
The route reaches Osmore Pond. Mountain ponds at this latitude warm up enough to swim by mid-summer and stay pleasant into early autumn.
The route follows the Hosmer Brook Trail for its main stretch.
When to go
Topping out at 1,476 ft, this one stays below the 2,500 ft mud-season line, so it dries out earlier and is a reasonable choice in late spring when the high ground is still off-limits.
Late September through mid-October is the best window here: firm trail, no bugs, and the clearest air of the year. The dependable season runs late June through mid-October. Winter turns the steeper pitches into a traction problem — microspikes are the minimum, and north-facing sections hold ice well into spring.
Regulations and Leave No Trace
- Vermont asks hikers to stay off trails above 2,500 ft during mud season (roughly mid-April to Memorial Day) — this is a request, not a closure, and it is widely respected
- Dispersed camping on state land is generally legal below 2,500 ft, at least 200 ft from water and trails; the Green Mountain National Forest has its own rules and some areas are posted
- Campfires are prohibited at many Long Trail and Appalachian Trail sites — carry a stove and check the site before planning around a fire
- Dogs are allowed on most Vermont trails but must be under control; some summits with fragile alpine vegetation ask that dogs stay leashed
- Pack out everything, including food scraps and toilet paper — Vermont soil is thin and slow to break anything down
Frequently asked questions
How long does Osmore Pond via Hosmer Brook Trail take?
Most hikers take about 1.7 hours of moving time for the full 3.3 miles, before breaks. Add an hour or more if you're stopping for lunch at the top or hiking with a group at mixed paces.
How hard is Osmore Pond via Hosmer Brook Trail?
It's rated easy: 3.3 miles with 335 ft of elevation gain, or about 102 ft per mile.
How long is Osmore Pond via Hosmer Brook Trail?
3.3 miles round trip — 1.6 miles each way as an out-and-back.
How high is Osmore Pond?
The high point of this route is 1,476 ft.
Is there water on Osmore Pond via Hosmer Brook Trail?
No mapped water sources sit within 0.75 mi of this route, so carry everything you'll need.
When is the best time to hike Osmore Pond via Hosmer Brook Trail?
Late June through mid-October is the reliable window, with late September through mid-October usually the best of it. Because it stays below 2,500 ft, it opens earlier in spring than the high peaks.
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Route data © OpenStreetMap contributors (ODbL). Elevation from USGS 3DEP / SRTM via AWS Terrain Tiles. Distances and elevation are computed from the route geometry, last rebuilt 2026-07-24.