Ongoing through May 7th: 9 AM - 4:30 PM
April 9 Reception 1 - 3 PM
"A Visual Journey: Exploring the Hudson from the Highlands to the Tappan Zee," Hudson River Paintings by Margaret Grace on Exhibit at the Rockefeller Park Preserve
The Art Gallery at the Rockefeller State Park Preserve in Pleasantville, New York will present an exhibition featuring the Hudson River paintings of Margaret Grace. The exhibition, curated by Audrey Leeds, also includes small house sculptures by Piermont, NY artist Isabel Jacobs. Ms. Grace, a member of the Sparkill Creek Watershed Alliance, includes in this exhibit a number of pictures and prints of the Piermont Marsh, where the Sparkill Creek enters the Hudson in Piermont, NY. Also featured are her abstract paintings that speak to the ancient qualities of the Hudson River as fjord in the Hudson Highlands - a stunning reminder Hudson's geologic past, and its role in a changing planet. The Art Gallery at the Rockefeller Park Preserve's gallery hours are 9 am to 4:30 pm daily. The Art Gallery of the Rockefeller State Park Preserve is located at 125 Phelps Way, Pleasantville, NY. There is a vehicle parking fee of $6.00. For Gallery Sales and Information, call 201 767-0882; for preserve information, 914 631-1470.

Ongoing through April 14th
Troy River City: Living with Water in Troy
Special Events: April 10: 3-4 PM Public walk through with student designers; 4-5:30 Panel discussion with local experts on green and blue infrastructure in Troy and the Capital Region; 5:30 Informal discussion with local organizers, and students and faculty from Cornell
This exhibition explores Troy's past and possible future as a river city in the Hudson Valley, bringing together historic photographs and aerial imagery that show Troy and its river through time. In addition, new maps, models and speculative scenarios by landscape architecture faculty and students at Cornell University will offer multiple visions for how Troy might remake itself by reclaiming its riverfront and re-imagining itself as a river city. The work has been done over three years in collaboration with Chico Christopher and TAP, Inc., with support from the New York State Water Resources Institute and the Department of Environmental Conservation Hudson River Estuary Program, with support from the New York State Environmental Protection Fund. Located at: Main Gallery, The Arts Center of the Capital Region, 265 River Street, Troy, NY 12180. For more information, please visit:

Throughout the Month - Fridays, Saturdays and Sundays 12 - 4 PM
Wildlife Education Center Hours and Exhibits
At the Hudson Highlands Nature Museum's Wildlife Education Center, 25 Boulevard, Cornwall-on-Hudson. "Birds on the Wing" Exhibit (This exhibit made possible in part by The Dorr Foundation and Orange & Rockland Utilities) and the Hall of Live Animals. On the weekends at 1 p.m. & 2:30 p.m. join a Museum Educator to "Meet the Animal" of the week! Admission: Not-yet-Members $3. Museum Members are free. For information visit the museum's website at or call 845.534.5506 ext. 204.

April 5: 6:30 PM
Responding to Climate Change in Hudson Valley: Hell & High Water
Mark Lowery of New York State Department of Environmental Conservation Office of Climate Change will make a science-based presentation about the present and future local dangers from climate change. Mark will describe the level of greenhouse gas reductions needed to avoid catastrophic effects in New York. He will also discuss New York State programs to reduce emissions and programs to adapt to the unavoidable effects of climate change and how to protect natural resources and infrastructure. This presentation will be especially helpful to all county, city, town, and village officials along with their planning board, assessors and ZBA members, as well as officials responsible for water, sewers, and highways. Representatives from the state and federal government and non- governmental organizations are also encouraged to attend. Mark is a climate policy analyst in the New York State Department of Environmental Conservation's Office of Climate Change. His principal areas of responsibility have included leading public outreach efforts for the Regional Greenhouse Initiative, Sea Level Rise Task Force and climate action planning. He oversees the Climate Smart Communities program and coordinates implementation of the Community Risk and Resiliency Act. This event is sponsored by the Rensselaer Plateau Alliance (RPA). RPA works with the community to promote and facilitate the conservation of the undeveloped and unfragmented forests and other ecologically important areas of the Rensselaer Plateau region. Learn more at Location: First United Methodist Church, 1 Gilligan Rd. in East Greenbush, NY at 6:30 pm. The meeting is free, open to the public and light refreshments will be available. For more information, contact Bob or Becky at518-781-4686 or

April 6: 9:00 AM - 4:00 PM
WAVE Workshop: From Data to Action
This workshop is open to the public and will cover topics related to analyzing results, developing or modifying study plans, implementing best management practices to improve water quality conditions, communicating results to community leaders, and watershed planning. The day will begin with presentations from our expert panel: Alexander Smith (NYSDEC Stream Biomonitoring Unit), Karen Stainbrook (NYSDEC Nonpoint Source Program Manager), Emily Vail (NYSDEC Hudson River Estuary Program), and Ríobart Breen (NYS Dept of State, Division of Community Resilience and Regional programs). Our lunchtime keynote speaker will be Dr. John Jackson of the Stroud Water Research Center. Dr. Jackson has a long history working with citizen scientists to monitor and restore stream systems and their watersheds. As you will learn, the struggles of citizen scientists in NY state are not unique. The majority of the meeting will be spent problem solving specific issues faced by members of the WAVE family. Four groups have graciously offered to present and workshop their systems: the Friends of the Great Swamp, the Sparkill Creek Watershed Alliance, Rockland County Division of Environmental Resources, and the Batten Kill Watershed Alliance. We will also provide time for questions and discussion for communities who are not presenting. Register online at:

April 6: 7 PM
River at Risk Film Screening and Panel Discussion
Center for the Urban River at Beczak, 35 Alexander St., Yonkers, NY
Film screening followed by panel discussion. See for details

April 8: 8:00 AM - 11:00 AM
Birding Hotspot: The Great Swamp in Patterson with Naturalist Tait Johansson. Join Tait in exploring the Great Swamp in Patterson in a search for Wood Duck, Wilson's Snipe, Rusty Blackbird, and other signs of spring. We'll possibly visit a few other early spring locales as well. Meet at Patterson Environmental Park. Cost: Free. Level of Difficulty: Easy. Please register with Susan at or 914.302.9713.

April 8: 9 AM - 12 PM
Lower Hudson Urban Waters Collaborative Community Science 2017 Season Kick-off
Sarah Lawrence College Center for Urban River at Beczak, 35 Alexander St, Yonkers; Close to Metro-North; Parking is available. Please join Riverkeeper, the Sarah Lawrence College Center for the Urban River at Beczak, the Bronx River Alliance and the Hudson River Watershed Alliance on April 8th to kick off the 2017 Enterococcus sampling season! New samplers, this event is your opportunity to learn how to safely and effectively collect samples for analysis of Enterococcus, an indicator of fecal contamination. Experienced samplers, there's a lot on offer for you, too! The morning will feature a presentation about the science behind Enterococcus by Dr. Andy Juhl of the Lamont-Doherty Earth Observatory of Columbia University; a tour of the water testing lab; what you can do with the monitoring data; successes and challenges from the region; and an introduction to source tracking. Breakfast will be served.
Please RSVP by April 5th to Ryan Palmer at or 914.377.1900 x15. Note: Space is limited and preference will be given to people interested in volunteering in the Saw Mill, Bronx River, Pocantico River and Sparkill Creek watersheds. RSVP early! This event launches the Lower Hudson Urban Waters Collaborative, a partnership to join together the Saw Mill, Bronx River, Pocantico River and Sparkill Creek communities through collaborative training, sampling, and outreach events. The collaborative is funded by an EPA Urban Small Waters Grant to Sarah Lawrence College Center for the Urban River at Beczak with the Bronx River Alliance, the Hudson River Watershed Alliance and Riverkeeper.
Please see this link for details.

April 8: 10:00 AM
Opening Day of Grasshopper Grove
Come to the Hudson Highlands Nature Museum's Outdoor Discovery Center, on Muser Drive across from 174 Angola Road, Cornwall for the opening day of Grasshopper Grove: Nature Play Area featuring special opening day activities. Admission: Not-yet-Members $3. Museum Members are free. For more information go to or call 845.534.5506 x204.

April 8: 10:00 AM
Training for Roe Jan Watershed Community's 2017 Sampling Program
Sampling is a great way to experience the Roe Jan, and make a contribution to the watershed. If you're interested in sampling, or if you'd just like to get on the mailing list, write to for details. For info on our 2016 sampling, please goto our web site

April 12: 9:30 AM - 2:00 PM
Hudson River Watershed Alliance - Source Water Workshop (see above feature)
Organized by the Hudson River Watershed Alliance in partnership with the NYS DEC Hudson River Estuary Program and hosted by Cornell Cooperative Extension of Rockland County. Light lunch will be provided. Space is limited. Register here. Space is limited.

April 12: All day, different locations (see below details)
How's the Water? Join Riverkeeper in the Upper Hudson to learn about the results of our water quality sampling in the region, and opportunities to get involved
Details: 10 AM-11 AM: Crandall Public Library, 251 Glen St, Glens Falls, NY 12801; 1 PM-2 PM: Schuylerville Town Hall, 12 Spring St, Schuylerville, NY 12871; 4 PM-5 PM: Albany Public Library - Howe Branch, 105 Schuyler St, Albany, NY 12202; 6 PM-7:30 PM Happy Hour: Albany Pump Station, 19 Quackenbush Square, Albany, NY 12207
The Hudson River Estuary is tidal from New York Harbor to the Troy Dam in the Capital District. From there, the Upper Hudson stretches about 150 miles to Lake Tear of the Clouds, in the Adirondacks. Riverkeeper has sampled the Hudson River Estuary since 2008, and expanded into the Upper Hudson in 2016. Learn more at Event Details:

April 12: 7:00 PM
Vector-borne Diseases: A Lecture on West Nile Virus with Bedford Audubon and the Cary Institute's Dr. Sarah Bowden
While most of us are familiar with Lyme Disease and how it's spread by deer ticks, or the Zika Virus spread by mosquitoes in tropical climates. But we don't spend much time thinking about West Nile Virus, a zoonotic infection spread by mosquitoes that affects humans, birds, and even horses. It emerged in New York City in 1999 and is now endemic in most of the lower 48 states. Dr. Sarah Bowden will give a talk on the ecology of West Nile Virus, including its impact on human and bird populations. This lecture will cover the drivers and dynamics of West Nile Virus, including: How mosquitoes, birds, and humans interact and cause disease outbreaks. Which species of mosquitoes transmit West Nile Virus, and where they live. How climate change alters the ecology and epidemiology of West Nile Virus. Dr. Sarah Bowden is a postdoctoral scientist at the Cary Institute of Ecosystem Studies. Her research focuses on the ecology of zoonotic and vector-borne diseases, where she integrates disease ecology, population and community ecology, and epidemiology to address the intersection of ecology and public health. Dr. Bowden received her PhD in Ecology from the Odum School of Ecology at the University of Georgia in 2016. She lives in Millbrook, New York with her husband, young son, and two dogs. The lecture will be held in the Garden Room of the Katonah Village Library. Please join us for refreshments at 7pm (and bring a reusable mug to help us reduce our ecological footprint), and the lecture begins at 7:30. No registration required.

April 13: 8:00 AM - 9:30 AM
Hudson River Watershed Alliance - Mid Hudson Speaker Series
Drinking Water Protection in Hudson Estuary Tributaries
Featured Speaker: Elisa Chae, NYS DEC Hudson River Estuary Program
The 2015-2020 Action Plan of the Hudson River Estuary Program includes prominent attention to source water protection. To advance this goal, Elisa Chae recently joined the HREP team where she is now contributing to watershed planning efforts, review of Newburgh's source water assessment and planningefforts, and exploring source water protection for wells along various creeks. Ms. Chae worked previously as a legislative specialist at NOAA's Office of Ocean and Coastal Resource Management (OCRM). At this breakfast, Elisa will outline some of her new responsibilities, discuss how her role interfaces with protection programming already provided by NYDOH and other NYSDEC programs, and share her vision for how this new program can assist watershed organizations and source water managers to protect drinking water sources.
Please RSVP (attendance only) to Russell Urban Mead, There is a $4 minimum food/beverage purchase. Location: Plaza Diner (near Tops grocery store), New Paltz.

April 13
Water Cooperation and Conflict: The Local and Global Challenge
Dr. Peter Gleick will serve as Featured Keynote Speaker, hosted by Pace University. The summit will include keynote speeches and panel discussions on global, national and local water issues ranging from transboundary conflicts, to local water scarcity, to watershed management. For more details and to register, visit

April 13: 5:00 PM
Russell Sage College's Annual Women in Science Lecture
Please join us as Dr. Sharon DeWitte, an expert in 14th century Black Death, explores the ways in which bioarchaeological research on past epidemics such as the Black Death can improve our understanding of emerging diseases and human-pathogen coevolution in general, and its relevance for living people. For more information, go to

April 15: 10 - 3 PM
SWARM at Croton Gorge Park
Join Groundwork and our SWARM partner communities in putting a dent in the harmful invasive vines along the Saw Miller River en masse! We'll meet at Croton Gorge Park. Register here

April 19: 9:30 AM - 3:30 PM
Trash-Free Waters: 'Marine' Debris in the Hudson River Watershed
Hosted by the Hudson Valley Regional Council, the conference will provide an overview of debris that is polluting our waterways and oceans. Plastics are of particular concern because of their ubiquity, persistence and impacts on the environment and human health. Attendees will learn about the concerns, challenges and solutions to reducing trash entering the Hudson River and our oceans. The event is geared towards water resources and materials management professionals, solid waste and recycling coordinators and local officials involved in managing municipal separate storm sewer systems. Presentations will be made by USEPA and NYSDEC officials, as well as researchers and educators. Funding provided through the Clean Water Act by U.S. Environmental Protection Agency and New York State Department of Environmental Conservation. For registration click here. Location: Kaplan Hall, Orange County Community College Newburgh Campus.

April 20: 10:30 AM- 3:30 PM
Earth Day Fair at Columbia Greene Community College
The fair is put on by the Conservation Club at the college and focuses on spreading environmental awareness, education, and getting people to interact with the environment around them. We are looking for local shops, farms, research and educational facilities, and anything environment related to come and spend the day with us as we spread environmental awareness. You are more than welcome to sell your product, or simply set up an educational display for the students. This is the second annual event at the college and we hope to recreate the success we saw last year. We would love to see you there! Please email if you are interested in coming and we will forward to you our simple application.

April 21: 7:00 PM - 10:00 PM
The Nile Project
The Sanctuary for Independent Media, 3361 6th Ave.
Admission: $15. The Nile Project transforms transboundary water conflicts by using music to ignite cross­-cultural empathy and spark environmental curiosity. The ensemble, which brings together 13 musicians from the 11 Nile countries, offers a new blueprint in which citizens can organize themselves to strengthen the sustainability of their rivers. "The Nile Project is more than a band," exclaims Kenyan percussionist/vocalist and Nile Project musician Kasiva Mutua. "The way we combine collaboration and education is revolutionary-not only here at home in the Nile River but everywhere we've been." Introduced by Maureen Cunningham from the Hudson River Watershed Alliance. For more info, or to buy advance tickets, go to:

April 22: 8:00 AM - 11:00 AM
Nature Walk: Explore John Jay Homestead in Katonah with Naturalist Tait Johansson & the Friends of John Jay Homestead
Join Tait at the John Jay Homestead to look for spring migrating birds. Meet at the main parking lot. Cost: Free. Level of Difficulty: Easy-Moderate. Please register with Susan at or 914.302.9713.

April 22: 9:30 AM - 3:00 PM
Earth Day Celebration and Annual Hike-A-Thon
Come to the Hudson Highlands Nature Museum's Outdoor Discovery Center, entrance on Muser Drive, across from 174 Angola Road, Cornwall, and enjoy a full day of events: Hike-A-Thon - Hike for a Purpose: 9:30 a.m. Earth Day Celebration 11 a.m. - 3 p.m. Earth Day is a family friendly event and includes A "green zone" of child friendly games and activities, farm animals, live music, hay rides, nature play at Grasshopper Grove and more! $5 per car-load suggested donation at entrance. For information visit or call 845-534-5506 x204.

April 22: 10:00 AM- 1:00 PM
Great Saw Mill River Cleanup
Join us for the 8th Great Saw Mill River Cleanup Every year, hundreds of volunteers county wide join Groundwork Hudson Valley to haul tons of trash and construction debris (3 tons last year) from the Saw Mill River - leaving the river cleaner and freer-flowing for the critters and human folk to enjoy. Please be a part of this feel-good community event by volunteering today! Register to volunteer at a site near you today! Register here

April 23: 8:00 AM - 1:00 PM
Field Trip: Garret Mountain Park in Paterson, New Jersey with Naturalist Tait Johansson
This truly excellent "migrant trap" provides sweeping views of northern New Jersey and the NYC skyline. Tait will lead the group on trails around a beautiful pond for migrating songbirds, especially warblers. Depart Bylane Farm at 6:45am. Cost: Free. Level of Difficulty: Moderate. Bring a lunch. Please register with Susan at or 914.302.9713.

April 23: 4:00 PM - 6:00 PM
ODETTA Gallery's River Woman Exhibition
Join us for a special event featuring the artists of ODETTA gallery's River Woman exhibition, and Paul Gallay, President and Hudson Riverkeeper. Learn about Riverkeeper's work to protect and preserve the Hudson River, its tributaries and the drinking water for millions of New Yorkers. Paul will also discuss Riverkeeper's new vision for Newtown Creek and the Gowanus Canal and Riverkeeper's work throughout the City to engage and activate communities along the diverse waterfronts of New York. This event is open to the public and will include a reception and silent auction. Location: ODETTA Gallery, 229 Cook St, Brooklyn, NY. River Woman will be on exhibit at ODETTA gallery from March 17 - April 30. Some proceeds from the sales of the artists' work will benefit Riverkeeper. Visit for related events throughout the course of the exhibition

April 25: 7:00 AM - 9:00 AM
Nature Walk: Migration Madness at Deans Bridge in Somers with Naturalist Tait Johansson
Join Tait before work for a spring migration bird walk at this local hotspot for newly arrived songbirds as well as lingering ducks and other waterbirds. Meet at Deans Bridge. Cost: Free. Level of Difficulty: Moderate. Please register with Susan at or 914.302.9713.

April 27: 7:00 - 9:00 AM
Nature Walk: Migration Madness at Maple Avenue in Katonah with Naturalist Tait Johansson
Join Tait before work at this local hotspot in search of spring warblers and other newly arrived songbirds. Cost: Free. Level of Difficulty: Easy. Please register with Susan at or 914.302.9713.

April 27
Hudson River on the Rise: Waterfront Planning for Communities and Nature
Henry A. Wallace Center at the FDR Presidential Library and Home, Hyde Park. This day-long conference will feature opportunities to learn from experts on resiliency planning for the unique natural and community resources along the Hudson Estuary. Presenters will discuss emerging issues and opportunities that will shape future waterfront planning; decision-making roles and shoreline jurisdictions; and innovative case studies. Sponsored by the NYSDEC Hudson River Estuary Program, Hudson River National Estuarine Research Reserve, NYSDOS Coastal Program, Scenic Hudson, New England Interstate Water Pollution Control Commission, and Cornell University. More details at

April 28: 6:00 PM (Rain Date TBD)
Amazing Earth Day Race
The Amazing Earth Day Race at Five Rivers is a fun, family-friendly evening of teams working to outwit each other while trekking around Five Rivers. At each stop, teams will compete in an Earth challenge, some mental and some physical. When a team successfully completes the challenge, the location of the next stop is given and the race continues. The first team to arrive at the final stop in the shortest amount of time will be crowned the winners! Details and registration form here Location: Five Rivers Environmental Education Center, 56 Game Farm Road, Delmar, NY 12054.

April 29: 8:00 AM - 12:00 PM
Field Trip: Discover Rye Nature Center with Naturalist Tait Johansson and Bronx River Sound Shore Audubon.
Join Tait and BRSS's Doug Bloom to look for warblers and other spring migrants on this bird walk at then gem of a nature center. Meet at Rye Nature Center. Cost: Free. Level of Difficulty: Easy. Please register with Susan at or 914.302.9713.

April 29: 12 - 4 PM
Science Barge Opening
Get ready for the annual opening of the Science Barge, the sustainable urban farm and educational center on the Hudson River on Yonkers' waterfront. This joyous rite of spring brings together elected officials, civic groups, and 200-300 residents from throughout the region for a full day of family fun. Enjoy live animals from the Greenburgh Nature Center, Museum Theatre Performer Jonathan Ellers, Giant Puppets, and Nepperhan Community Center's Drum Corp, and more. This event is FREE and open to all ages! For questions please contact us at 914-375-2151 or

May 3: 9:00 AM - 5:30 PM
2017 Hudson River Symposium: Changing Energy Landscapes in the Hudson Valley and Watershed
New York's energy policies targeting the reduction of carbon emissions will have profound effects on how we view energy in the Hudson Valley. The days when steam electric generation dominated both the electrons flowing on the grid and the environmental concerns on the river are becoming a distant past. New York's aggressive renewable goals are leading to significant investments in both wind and solar power generation across the state, requiring upgrades to transmission lines and corridors to get the power to the Hudson Valley and New York City. The ever present demand for fossil fuels and changes in federal export policies has led to increased petroleum transport from Albany to downstate refineries and for export to other countries. This one day symposium will explore the energy policies, demand, and change that is occurring and yet to come for the Hudson River and watershed. For more information or to register go to

May 6-7
Yonkers Arts Weekend
In collaboration with the City of Yonkers, join Groundwork in celebrating Yonkers Arts Weekend. Come experience all the art Yonkers has to offer. Visit Groundwork during the arts weekend in the Daylighting Park as we explore Yonkers histories and Wildlife mysteries. Enjoy special guided tours of the Daylighting projects with Groundwork's Young Urban Rangers. For more information visit

May 10
Waterfront Conference
Please join us on for our 10th annual Waterfront Conference aboard the Hornblower Infinity. We're putting together a cadre of experts and sessions on critical topics for the future of our harbor, ranging from addressing methods that engage the public in constructive conversations about climate change to measuring mega projects to evaluating the impact of place-based education programs on the waterfront. Keeping with the theme, we'll unveil our Harbor Scorecard that will measure how strong, healthy, and open our waterways are, and where work continues across our region.

Save the Date!
May 23
The State of the Estuary: Looking Back, Moving Forward
The New York-New Jersey Harbor Estuary Program is collaborating with the New York State Department of Environmental Protection Hudson River Estuary Program to present a conference celebrating the 30 year anniversary of both programs. Please join us for a full day discussion of how far we have come and the challenges and opportunities that await us in the future.Bringing together 200 officials from local, state and federal government, non-profit advocates, utilities, scientists and private consultants, this event will review current priorities with a particular emphasis on fostering upriver/downriver connections, addressing climate change and infrastructure, challenges, and linking estuary health with community well-being. Location: Vanderbilt Hall, NYU School of Law, 40 Washington Square south, NYC 10012.

June 17-18, 2017
Clearwater Revival
The Great Hudson River Revival returns! The festival will take place on Saturday and Sunday, June 17 & 18, 2017 along the banks of the Hudson River at Croton Point Park in Croton-on-Hudson, NY. To purchase your Revival tickets, please visit the festival website at, or call (877) 435-9849.

Save the Date!
November 6, 2017
Nature Across Boundaries: What Can We Do to Keep Lands and Waters Connected?
Location: Mohonk Mountain House, New Paltz. Local leaders, landowners, and land managers can join proactively to preserve and restore connections in nature (connectivity) by working across municipal borders and property lines. This day-long conference will explore the importance of ecological connectivity, highlight case studies from New York, and engage participants in discussing the barriers and opportunities for preserving landscape connections in the Hudson Valley. Sponsored by Mohonk Consultations in partnership with the NYSDEC Hudson River Estuary Program. For more information, contact or visit for conference updates.

Save the Date!
November 14, 2017
Hudson River Watershed Alliance - Annual Watershed Conference
Henry A. Wallace Center at the FDR Presidential Library & Home, Hyde Park, NY. Please contact Maureen Cunningham at for sponsorship opportunities and check back over the summer at for conference updates.

Find Us On Facebook!