National wildlife refuge

Assabet River National Wildlife Refuge

Assabet River National Wildlife Refuge is a national wildlife refuge in Middlesex County, Massachusetts run by the U.S. Fish and Wildlife Service. There is no entrance fee.

Check current closures and fire restrictions for Assabet River National Wildlife Refuge on the managing agency's own page.

Assabet River National Wildlife Refuge
Photo: USFWS, Public domain (US federal government work, 17 U.S.C. 105) . Data source:Recreation.gov

Assabet River National Wildlife Refuge map

Assabet River National Wildlife Refuge boundary from USGS PAD-US or the managing agency, simplified for display. Not for navigation or legal boundaries.

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Fire restrictions

This unit's own agency alerts list no fire restriction as of Oct. 5, 2026. We do not check a statewide fire-order feed for MA, so that is not a statement that no order exists, and not a green light for a fire. Check with the land manager and your county before you light anything.

Hours, fees, and visitor center

There is no entrance fee at Assabet River National Wildlife Refuge.

What visitors do here: hiking, hunting, fishing.

Wildlife

  • BirdWaterfowl

Getting there

  • Nearest town: Maynard, 1.5 miles

Source: www2.census.gov, checked 2026-09-30.

Public lands next to Assabet River National Wildlife Refuge

Measured between the units' boundaries as mapped in USGS PAD-US. Distances are straight line, not driving.