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Home › Waters › New Hampshire › Beaver Brook
Creek · Hillsborough County, a substantial brook running south through Derry, Londonderry and Pelham toward the Merrimack River in southern New Hampshire · New Hampshire

Beaver Brook Fishing Guides

A brook in name and a small river in fact, draining nearly fifty square miles of southern New Hampshire and stocked with trout along its more accessible reaches.

A weathered shack on the bank of a New England stream in autumn
Gauge location. Map data © OpenStreetMap contributors.

Guides on the Beaver Brook

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About the Beaver Brook

Beaver Brook is a brook only by long habit. It drains close to fifty square miles of southern New Hampshire, gathering in the Derry and Londonderry area and running south through Windham and Pelham before crossing into Massachusetts and reaching the Merrimack River at Lowell. By the time it passes the gauge at North Pelham it is carrying a volume that most people would describe as a small river, with defined pools, gravel riffles and enough depth to hold fish through a dry summer. It is one of the larger tributaries entering the Merrimack from the New Hampshire side.

New Hampshire Fish and Game stock the brook with brook, brown and rainbow trout along the reaches where public access is practical, and those fish are the main draw through spring and early summer. The stream also holds wild brook trout in the colder feeder tributaries and a warmwater community in the slower and lower reaches, where smallmouth and largemouth bass, chain pickerel and fallfish are all common. American eel run up from the Merrimack, and the brook is part of the broader effort to restore diadromous fish passage through that system.

The corridor is suburban for much of its length, which cuts both ways. Access is straightforward at the many road crossings and along the conservation land and rail trail sections, so this is an easy stream to fish on short notice. On the other hand the watershed is developed enough that the brook responds quickly to storms and can run high and coloured for a day or two after heavy rain. The gauge reports discharge and stage, and checking it before a trip is the simplest way to tell whether the brook is in condition or still running off.

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Read the full license

Version 1.0, dated 6 September 2026. Applies to every photograph submitted to GuidedFloats through the contact form, a species page, or the community board.

1. What you give us

By ticking the box on the form you grant Guided Floats, LLC (“GuidedFloats”, “we”) a non-exclusive, worldwide, royalty-free license to store, copy, resize, crop and display your photograph on guidedfloats.com, in GuidedFloats’ own social media accounts and mobile apps, and in material that promotes the site itself, in connection with the fish, water or community feature you sent it in for. The license lasts until you withdraw it (section 4).

You keep the copyright. The license is not exclusive, so you can use the photo anywhere else and license it to anyone else. We will not sell your photo, license it on to anyone else on its own, or use it in paid advertising for a third party.

2. What you confirm

You confirm that you took the photograph yourself (or otherwise own the rights to it), that you have the right to grant this license, and that publishing the photo does not infringe anyone else’s copyright, privacy or other rights.

If any person is recognisable in the photo, you confirm that they have agreed to its being published here, and that a parent or guardian has agreed on behalf of anyone under 18. Please do not send photographs of other people’s catches, screenshots, or pictures copied from other websites or social media.

3. Credit

We print the credit name you give us beside the photo wherever it appears on the site, and record it as the photo’s creator in the page’s structured data. If you leave the credit blank we use the name you gave us on the form. Write “Anonymous” if you prefer no name at all. Your email address, phone number and the exact spot the photo was taken are never published.

4. Withdrawing the license

You can withdraw the license at any time by emailing hello@guidedfloats.com, or by using the contact form, and telling us which photo you mean. We will remove the photo from guidedfloats.com within 7 days of receiving your message and stop using it in anything new. Copies that are already outside our control — search-engine caches, social posts that have already gone out, printed material already produced — may take longer to disappear or may not be recallable, and we are not responsible for those.

5. What we may do

We choose which photos to publish and may decline any submission without giving a reason. We may crop, resize, sharpen or colour-correct a photo for display, and we may remove a photo at any time. We will not alter a photo in a way that misrepresents the fish, the water or you.

6. Your details

We keep your name, email address, the credit name, the water and date you gave us, and the network address the submission came from, with the submission record, as our evidence of this license. We hold that record for as long as the photo is published and for the retention period described in our privacy policy. Location data that your camera or phone embedded in the file is removed before the photo is published.

7. Versions

The version of this license you accepted is stored with your submission and printed with the photo. A later version does not apply to a photo you have already sent unless you agree to it.

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Posting to Beaver Brook.

JPG, PNG or WebP, up to 12 MB. We resize it and strip the location data out of the file.

The name shown under the photo. Leave blank to stay anonymous.

Reader photo license v1.0 — the short version:

  • You grant Guided Floats, LLC a non-exclusive, royalty-free license to publish, resize and crop your photo on guidedfloats.com and in GuidedFloats’ own social posts and apps. You keep the copyright and can use the photo anywhere else.
  • You confirm that you took the photo yourself, that publishing it does not infringe anyone else’s rights, and that anyone recognisable in it (or a parent or guardian, if they are under 18) is happy for it to appear here.
  • Credit is printed beside the photo wherever it appears on the site, using the credit name you give us. Leave it blank and we use your name; write “Anonymous” for no name. Your email address is never published.
  • Withdrawing is one email to hello@guidedfloats.com naming the photo. It comes off the site within 7 days.
Read the full license

Version 1.0, dated 6 September 2026. Applies to every photograph submitted to GuidedFloats through the contact form, a species page, or the community board.

1. What you give us

By ticking the box on the form you grant Guided Floats, LLC (“GuidedFloats”, “we”) a non-exclusive, worldwide, royalty-free license to store, copy, resize, crop and display your photograph on guidedfloats.com, in GuidedFloats’ own social media accounts and mobile apps, and in material that promotes the site itself, in connection with the fish, water or community feature you sent it in for. The license lasts until you withdraw it (section 4).

You keep the copyright. The license is not exclusive, so you can use the photo anywhere else and license it to anyone else. We will not sell your photo, license it on to anyone else on its own, or use it in paid advertising for a third party.

2. What you confirm

You confirm that you took the photograph yourself (or otherwise own the rights to it), that you have the right to grant this license, and that publishing the photo does not infringe anyone else’s copyright, privacy or other rights.

If any person is recognisable in the photo, you confirm that they have agreed to its being published here, and that a parent or guardian has agreed on behalf of anyone under 18. Please do not send photographs of other people’s catches, screenshots, or pictures copied from other websites or social media.

3. Credit

We print the credit name you give us beside the photo wherever it appears on the site, and record it as the photo’s creator in the page’s structured data. If you leave the credit blank we use the name you gave us on the form. Write “Anonymous” if you prefer no name at all. Your email address, phone number and the exact spot the photo was taken are never published.

4. Withdrawing the license

You can withdraw the license at any time by emailing hello@guidedfloats.com, or by using the contact form, and telling us which photo you mean. We will remove the photo from guidedfloats.com within 7 days of receiving your message and stop using it in anything new. Copies that are already outside our control — search-engine caches, social posts that have already gone out, printed material already produced — may take longer to disappear or may not be recallable, and we are not responsible for those.

5. What we may do

We choose which photos to publish and may decline any submission without giving a reason. We may crop, resize, sharpen or colour-correct a photo for display, and we may remove a photo at any time. We will not alter a photo in a way that misrepresents the fish, the water or you.

6. Your details

We keep your name, email address, the credit name, the water and date you gave us, and the network address the submission came from, with the submission record, as our evidence of this license. We hold that record for as long as the photo is published and for the retention period described in our privacy policy. Location data that your camera or phone embedded in the file is removed before the photo is published.

7. Versions

The version of this license you accepted is stored with your submission and printed with the photo. A later version does not apply to a photo you have already sent unless you agree to it.

Flow alert

Tell me when the Beaver Brook cfs

Now: 25.4 cfs, read 5:15 pm CDT, Sun Oct 18, 2026 (USGS 010965852, BEAVER BROOK AT NORTH PELHAM, NH).

We never use this address for anything else and never share it. See the privacy policy.

Access

Pelham - the town at the gauge, with road crossings and the most direct access to the lower brook.
Windham - the town upstream, with conservation land and further public frontage.
Derry - the town at the top of the watershed, with the nearest full range of services.
Merrimack River - the receiving river in Massachusetts, a large and varied fishery.
Nashua - the city west, with tackle shops and the closest larger centre.
Lowell - the Massachusetts city at the mouth, with access to the Merrimack itself.
Manchester - half an hour north, with the nearest airport and full services.

Seasons

Spring: stocking begins and the flows are strong, making this comfortably the best fishing of the year.
Summer: the brook drops and warms in the open reaches, with the trout holding in the shaded and spring influenced water.
Fall: rain brings the flow back up and the bass and pickerel in the lower reaches feed hard.
Winter: cold and partly iced, with very little activity and the season closed on much of the water.

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Questions

What is the current flow on the Beaver Brook?

As of Oct 18, 5:15 pm, the USGS gauge BEAVER BROOK AT NORTH PELHAM, NH reads 25 cfs. Conditions update every 15 minutes.

What species can you catch on the Beaver Brook?

Anglers target American Eel, Brook Trout, Brown Trout, Chain Pickerel, Fallfish, Largemouth Bass, Rainbow Trout, Smallmouth Bass, White Sucker on the Beaver Brook in New Hampshire.

Where can you access the Beaver Brook?

Pelham - the town at the gauge, with road crossings and the most direct access to the lower brook. Windham - the town upstream, with conservation land and further public frontage. Derry - the town at the top of the watershed, with the nearest full range of services. Merrimack River - the receiving river in Massachusetts, a large and varied fishery. Nashua - the city west, with tackle shops and the closest larger centre. Lowell - the Massachusetts city at the mouth, with access to the Merrimack itself. Manchester - half an hour north, with the nearest airport and full services.

When is the best time to fish the Beaver Brook?

Spring: stocking begins and the flows are strong, making this comfortably the best fishing of the year. Summer: the brook drops and warms in the open reaches, with the trout holding in the shaded and spring influenced water. Fall: rain brings the flow back up and the bass and pickerel in the lower reaches feed hard. Winter: cold and partly iced, with very little activity and the season closed on much of the water.

Where are the fishing regulations for the Beaver Brook?

Regulations change by season and section. Read the current rules on the New Hampshire agency site: https://www.wildlife.nh.gov/fishing-new-hampshire/fishing-rules-and-regulations