U.S. Army Corps of Engineers, Otter Brook Lake & Surry Mountain Lake

U.S. Army Corps of Engineers, Otter Brook Lake  & Surry Mountain Lake Welcome to the official US Army Corps of Engineers Otter Brook Lake & Surry Mountain Lake page. Our District website is: www.nae.usace.army.mil. The U.S.

Page administered by the staff under the social media guidelines at: www.usace.army.mil/SocialMedia/ Otter Brook Lake offers many recreational opportunities that everyone can enjoy. It offers a picnic area with tables and fireplace grills; swimming on a 400-foot-long beach; a boat ramp; boating for canoes, rowboats, sailboats, and motorboats (no wake); and sanitary facilities. Visitors are welcome to walk into the park and utilize the area. Fall and winter are a wonderful time of year to take a walk through the park and when we have enough snow, snowshoeing and cross-country skiing as well as snowmobiling are a great way to get out and enjoy the park. Wildlife viewing is also a popular activity enjoyed in the park. If you are interested in interpretive programs and would like a park ranger to present a program, we are available for both on and off site presentations. If you have any questions or would like to schedule a program please call. Hunting and fishing are permitted in accordance with applicable state laws and regulations. Army Corps of Engineers, New England District, working in cooperation with agencies from the states of CT, MA, NH and VT, provides quality outdoor recreational opportunities at 31 Corps-operated flood risk management reservoirs within these states. The lands and waters of these civil works water resource projects are managed to conserve the natural resources as well as for the primary authorized purpose of flood risk management. The Corps of Engineers was founded on June 16, 1775. Disclaimer

The appearance of external links or the use of third-party applications on this site does not constitute official endorsement on behalf of the U.S. Army Corps of Engineers, U.S. Army or Department of Defense. This page is administered by the U.S. Army Corps of Engineers, New England District. While this is an open forum, it's also a family friendly one, so please keep your comments and posts clean. You participate at your own risk, taking personal responsibility for your comments, your username and any information provided. Comments and posts that violate any of the guidelines listed below may be removed:

• Do not post graphic, obscene, explicit or racial comments. We also do not allow comments that are abusive, hateful, vindictive or intended to defame anyone or any organization.

• Do not post any solicitations (i.e.: asking users to "like" your page, visit your website, sign a petition, contribute to a fundraiser).

• Do not post advertisements, prize contests or giveaways. This includes promotion or endorsement of any financial, commercial or non-governmental agency. Similarly, we do not allow attempts to defame or defraud any financial, commercial or non-governmental agency.

• Do not post details about an ongoing investigation or legal or administrative proceeding that could prejudice the processes or could interfere with an individual's rights will be deleted from this page.

• Do not post copyrighted or trademarked images or graphics. Imagery posted on the Facebook wall should be owned by the user.

• Do not post comments, photos or videos that suggest or encourage illegal activity.

• Do not post political propaganda.

• Do not post documents of any kind.

• All information posted to social media sites will be unclassified. No FOUO (for official use only), classified, pre-decisional, proprietary or business-sensitive information should ever be posted or discussed on this page. Don’t post personnel lists, rosters, organization charts or directories. This is a violation of privacy. Also, the appearance of external links or the use of third-party applications on this site does not constitute official endorsement on behalf of the U.S. For more information, visit the DoD Social Media user agreement at: http://dodcio.defense.gov/DoD-Web-Policy/

You are encouraged to quote, republish or share any content on this site on your own blog, Web site or other communication/publication. If you do so, please credit the Army unit or the person who authored the content as a courtesy.

07/29/2026

WATER QUALITY UPDATE: Surry Mountain Lake Beach
Please be advised that our latest weekly water quality testing indicates that bacteria levels at Surry Mountain Lake Beach remain above the State of New Hampshire's safety standards for swimming. Consequently, the temporary advisory recommending that visitors avoid swimming remains in effect, and warning signs remain posted at the beach area. Our team will perform the next round of water quality testing during the week of August 3rd and will provide updates as soon as results are processed. All other park facilities remain open for public use. Thank you for your cooperation.

07/15/2026

WATER QUALITY UPDATE: Surry Mountain Lake Beach

Visitors are strongly advised to avoid swimming at Surry Mountain Lake Beach until further notice due to elevated bacteria levels

• What happened: Routine water quality tests conducted on both Monday and Tuesday returned bacteria levels that exceed the State of New Hampshire's safety standards for swimming.
• Why we aren't re-testing immediately: Due to the high concentration of geese and their offspring currently in and around the lake, we have concluded it is not practical or reasonable to re-test at this time.
• Current Status: The beach will remain posted with warning signs
. While we strongly recommend staying out of the water, all other recreation areas and park facilities at Surry Mountain Lake remain fully open to the public
.
Please help us spread the word to keep our community and pets safe! We will provide updates if conditions change.

07/09/2026

WATER QUALITY UPDATE: Surry Mountain Lake Beach
Unfortunately, our latest weekly water test showed bacteria levels above the State of New Hampshire's safety standards for swimming. While occasional high numbers are a normal part of managing natural bodies of water, your health and safety are always our top priority.
What you need to know:
• We strongly recommend visitors avoid swimming at the beach until further notice.
• You will see warning signs posted at the beach area as a reminder.
• Our team will perform another water quality test on Monday, July 13th and will provide updates when conditions improve

Thank you for your cooperation as we work to keep our public recreation areas safe. Please note that all other park facilities remain fully open for public use.

11/13/2025

The lapse in appropriations has concluded and normal operations on this social media page will resume. Furloughed USACE employees will receive direction through their chain of command.

Address

480 Branch Rd
Keene, NH
03431

Opening Hours

Monday 8am - 3pm
Tuesday 8am - 3pm
Wednesday 8am - 3pm
Thursday 8am - 3pm
Friday 8am - 3pm

Telephone

+16033524130

Alerts

Be the first to know and let us send you an email when U.S. Army Corps of Engineers, Otter Brook Lake & Surry Mountain Lake posts news and promotions. Your email address will not be used for any other purpose, and you can unsubscribe at any time.

Share