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Sudbury Reservoir Watershed

Details unconfirmedPond · Ashland, MA · not confirmed on the Ashland side; primary public access described is via Parmenter Street and adjoining roads in Marlborough
Right now

An MWRA/DCR-protected drinking-water reservoir and surrounding watershed land extending into northeastern Ashland, open for limited shoreline fishing and passive recreation under state watershed rules.

What to expect

Entry fee
Free
Hours
one hour before sunrise to one hour after sunset, in fishing season only
Fishing
Allowed first Saturday in April through Nov 30, shoreline only, closest area to dam and MWRA facilities excluded
Managed by
DCR Division of Water Supply Protection 508-792-7806 · Website

What's here

Not here

No bathhouse
no bathhouse; not a swim facility
No drinking water
none provided on site

Worth knowing

  • A hunting permit (no fee) is required to hunt on DCR Division of Water Supply Protection land.

Common questions

Can you swim in the Sudbury Reservoir?
No, it is an active public drinking water supply and swimming is not permitted.
Can you fish here?
Yes, shoreline fishing is allowed in season, except near the dam and MWRA facilities.
Is there an entry fee at Sudbury Reservoir Watershed?
No, entry is free.
What rules should I know at Sudbury Reservoir Watershed?
No swimming or boating; active drinking-water supply reservoir. No fishing within the closest portion of the reservoir to the dam and MWRA facilities.

Been here? Help keep it current.

Prices, hours, and facilities change. A quick note keeps the next visitor from guessing.

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BetaSome details here are unconfirmed (Ashland-side entrance/parking, dogs policy). Details are sourced from public agency data and can change through the season. Confirm locally before you go. Updated 2026-11-06.