Woodstock, CT

Roseland Lake, Woodstock CTThe purpose of this community website is to provide information about the lake and surrounding land. The ultimate goal is to increase awareness, appreciation, enjoyment and conservation of this little slice of paradise.

Roseland Lake is a small, 96 acre lake located in South Woodstock, Connecticut. Public and boat access is on the western side of the lake, in Roseland Park, off of Roseland Park Road. Read more.

See: About Roseland Lake | History | Directions | Maps | Activities (fishing, boating, etc.) | Photos & Videos | ROSELAND LAKE FACEBOOK PAGE

For information about Roseland Park, visit the Roseland Park website, Roseland Park on Facebook, or Town of Woodstock website

NEWS & EVENTS What's Happening

  • April 12, 2021: Lake sampled by Pond Management
  • April 10, 2021: Fishing tournament held.
  • March 6, 2021: The Woodstock Dive Team will be conducting a drill this weekend utilizing our Mustang Ice Rescue suits for member training evolutions on Ice Surface Rescue. The Dive Team is comprised of members from the Muddy Brook Fire Department, Bungay Fire Brigade and the Woodstock Vol Fire Assoc. Sta. 76. The drill usually takes a few hours. Drop in and stay as long as you like. Dive Team members were available for a Q & A session upon completion of the drill.
  • March 3, 2021: The Lake was stocked with trout by the CT DEEP today.
  • December 14, 2020: A copy of the CT DEEP Electrofishing Report covering sampling of fish from 2003 through 2019 was received. See Full Report.
  • December 9, 2020: First ice of the season.
  • August 7, 2020: The Lake was treated again for algae (see June 13, 2019).
  • July 13, 2020: The Lake was treated again for algae (see June 13, 2019).
  • June 18, 2020: The Lake was treated again for algae (see June 13, 2019).
  • March 2020: Lake was stocked with trout by CT DEEP in early March.
  • March 24, 2020: Fishing season opened early due to the pandemic.
  • January 26, 2020: Two fishermen fell through the ice and safely exited with the help of a third man with a rope.
  • December 1, 2019: First bit of ice on the lake.
  • August 5, 2019: The Lake was treated again for algae (see June 13, 2019).
  • June 13, 2019: On behalf of the Putnam Water & Sewer Dept., Pond and Lake Connection applied a product called SeClear (a combination of Copper Sulfate and another agent that is supposed to bind with phosphate. No surfactant was used. https://www.sepro.com/aquatics/seclear.)
  • May 14, 2019: A re-do electrofishing study was conducted by the CT DEEP.
  • March 19, 2019: Northeast Aquatic Research was hired to do an analysis of data collected by ECCD and make recommendations for nutrient reduction in the lake, with funding from the Town of Putnam, the Town of Woodstock, and donations from several abutters. See PowerPoint Presentation.
  • January 3, 2019: Aquatic Snail Survey report by biodrawversity published. The survey was conducted on October 26, 2018. See report.
  • November 13, 2018: Electrofishing study conducted by CT DEEP, results not available yet as of March 12, 2019, and staff indicated that based on a quick review of the fall 2018 sample compared to past samples, they don't believe they got a good sample that night because of the cold water temperatures and the heavy rains that occurred earlier that day. Depending on staffing and funding constraints, they may try to get back out to Roseland in 2019to perform another sample, hopefully under more ideal conditions.
  • October 2018: The CT DEEP planned to do an electrofishing study of the lake to see what species are present, but had to cancel due to bad weather. They hope to try again in the fall of 2018 or spring of 2018 if staffing is available, and when lake temps are above 10 degrees C (the equipment only works then.) See results of last study conducted in 2003/2004.
  • Summer, 2018: The Eastern CT Conservation District (ECCD) is continuing to monitor water quality in the lake. They are testing for cyanobacteria. Some - BUT NOT ALL - species of cyanobacteria can produce toxins. Read more. See ECCD newsletter article. Limited testing revealed that no cyanotoxins were detected in the Putnam drinking water supply.
  • Summer 2018: A pair of invasive Mute Swans nested on the lake in 2018, and produced 5 young, all of which disappeared shortly afterwards (due to snapping turtle predation?). Resident Mute Swans are a serious problem because they drive away native birds, can attack recreational users during nesting season, and poop prodigious amounts.
  • Spring, 2018: Roseland Lake was reportedly stocked with trout this year by the CT DEEP.
  • March 14, 2018: The Roseland Lake Management Plan has been completed by the ECCD.
  • October 4, 2017: PESTICIDE APPLICATION , THE DEPT. OF ENERGY AND ENVIRONMENTAL PROTECTION (CT DEEP)applied HERBICIDE TO CONTROL THE INVASIVE COMMON REED (PHRAGMITES) on several patches around Roseland Lake. For further information on invasive species, including phragmites, go to the DEEP website at http://www.ct.gov/deep STATE OF CONNECTICUT Bur. Of Natural Resources/Wildlife Division Wetland Habitat and Mosquito Management Program 860-642-7630. Download flyer.
  • August 22, 2016: Lake was treated again for algae.
  • June 20, 2016: Putnam Water Authority had the lake treated for algae control by their contractor, Solitude Lake Management. A smaller, quieter boat is now being used to disperse copper sulfate.
  • November, 2015: Edward and Annice Bradley donated an 1886 oil painting of Roseland Lake by Dennis Miller Bunker to the Woodstock Academy. See article.
  • November 2015: Three lakefront parcels were donated to The Wyndham Land Trust to be preserved as open space in perpetuity. See article.
  • PhragmitesAugust 13, 2015, July 16, 2015:Putnam Water Authority treated Roseland Lake (through a company named Aquatic Control) with copper sulfate to control algae.
  • July 29, 2015: The gazebo goes out onto the new dock at Roseland Park
  • May, 2015: ECCD water quality monitoring project begins (nutrient loading)
  • September 9-10, 2014: The Connecticut DEEP treated invasive Phragmites. Read more about treatment | Read more about invasive plants threatening Roseland Lake.

WHAT YOU CAN DOto help protect natural resources at Roseland Lake

Anyone who wants to enjoy the lake in the future, and wants it to continue to support wildlife can get involved in helping protect Roseland Lake.

  • Landowners who live upstream and around the lake can prevent pollution from entering the watershed. Maintain septic systems, control erosion, and maintain vegetative buffers along the waterways. Minimize the use of fertilizers and pesticides. Never use phosphate fertilizers on lawns (CT law PA 12-155 prohibits use on established lawns or within 20 feet of water.)
  • Boaters, paddlers and anglers can keep Roseland Lake free of invasive aquatic species. Before launching, clean, drain and dry/disinfect. Inspect all equipment that gets wet, remove any hitchhiking aquatic plants or animals, and drain all water. If you don't have time to let it thoroughly dry out, disinfect with bleach. Anglers need to dispose of unwanted bait in the trash - NOT in the lake.
  • Visitors should never put aquarium plants, live crayfish, fish or other animals into lakes or streams. Read more.
  • Homeowners can avoid planting and control invasive species on their own property. Read more.
  • Landowners in the watershed can protect their land from development by putting deed restrictions on their land. Read more.

WILDLIFE Birds, Mammals, Vegetation, etc.

Pileated Woodpecker.  Photo by Patrick ML SmithThe variety of wildlife on such a small lake is amazing. Many species of insects, fish, reptiles, amphibians, mammals, birds, and terrestrial and aquatic plants live, breed, feed, migrate through or overwinter at Roseland Lake.

See: WILDLIFE: or more specifically: Vegetation | Aquatic Species | Invasive Plants | Turtles | Snakes | Fish | Mammals | Birds | Plants | Fishing on Roseland Lake

A small private wildlife reserve has been established on the north cove of Roseland Lake. Read more about Zeelandia.


Preventing pollution at Roseland LakeWater quality has been an issue at Roseland Lake, primarily due to high levels of nitrates and phosphorus. Chronic algae blooms are a problem.

Read more about: the Watershed | Water Quality | Preventing Pollution.

Invasive plants threatening Roseland Lake include Phragmites and Purple Loosestrife. Read more.

CONTACT Who to contact regarding Roseland Lake

Contacts for Roseland LakeA variety of organizations either operate on the shores of Roseland Lake, or are involved in water use, water quality and and conservation issues.

See the Contacts page for specifics.

This Roseland Lake website you are visiting right now is a volunteer project, and is maintained by Chimalis LLC. Your suggestions, concerns and corrections are welcome. Contact me.


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