Events

@ Lamont-Doherty Earth Observatory of Columbia University

Detailed Times/Hours: The exhibit is open 9:00 - 2:30 p.m. M-TH, and 9:00 to 1:00 p.m. on Fridays. The Melting Age Art Show by Alfons Rodriguez, Fatma Kadir, and Selva Ozelli at the Lamont-Doherty Earth Observatory of Columbia University runs from June 13 to October 31, 2025.

The Lamont-Doherty Earth Observatory of Columbia University is celebrating its 75th anniversary with two environmental art shows. An AI art show of Climate Disasters Inspired by Great Masters by Mary Tiegreen https://openhouse.ldeo.columbia.edu/content/climate-disasters-inspired-great-masters. And The Melting Age Art Show by award-winning artists Alfons Rodriguez, Fatma Kadir, and Selva Ozelli, which draws attention to the impact of global warming on our world with photographs and a film by Alfons Rodriguez that spans 7 continents and over 30 countries and paintings by Fatma Kadir and Selva Ozelli.

@ Downtown Nyack

Detailed Times/Hours: 10A-5P

This family-friendly annual street festival held in scenic Nyack on the Hudson features 300+ vendors exhibiting jewelry, art, photography, collectibles, antiques, quality handmade crafts, unique gifts, and much more. The fair features live entertainment, plus great food and outdoor dining. Fairgoers can also enjoy Nyack’s many shops, pubs and restaurants offering SeptemberFest specials. Event is rain or shine.

@ Harmony Hall ~ Jacob Sloat House

Detailed Times/Hours: Festival grounds open at noon. Music is 1:00PM - 5:00PM.

Three wonderful bluegrass bands will grace our outdoor stage for the 15th Annual Highlands Bluegrass Music & Craft Festival! G Rockwell Trio, Eugene Tyler Band, and Cole Quest and The City Pickers will entertain us at the 2025 festival. The setting is the beautiful Ramapo River Valley on the Great Lawn of Jacob Sloat's 1848 mansion, Harmony Hall. This National Register of Historic Places Site in Sloatsburg, New York, is close to Harriman and Sterling Forest State Parks in the scenic Ramapo Mountains. There will be food, beverages, and craft vendors, and free kids' crafts. Public transportation to Sloatsburg - By train: Main/Bergen-Port Jervis Line. By bus from Port Authority: Coach USA/Shortline to Sloatsburg (Haas Pharmacy, 62 Orange Turnpike, Sloatsburg, NY) and Transport of Rockland Bus Route 93. By car: NYS Thruway Exit 15A

@ 131 Germonds Road, West Nyack NY 10994

Detailed Times/Hours: 9am Check In 9:30am-10:30am Walk the trails of the historic Traphagen property. Easy. Hiking boots or sneakers are appropriate. Not stroller or handicap accessible. Trail Length: 1.5 miles 10:30am - Tour of the 1791 Tallman-Budke House with Town Historian Larry Kigler Optional: Continue tour of other historic sites in West Nyack 11:30am - Drive 1.5 miles to the Historic Clarkstown Reformed Church, 107 Strawtown Road, West Nyack, NY 10994 12:30pm - Drive .5 miles to 1840 Tavern, 1 Strawtown Road, West Nyack, NY 10994

9am Check In 9:30am-10:30am Walk the trails of the historic Traphagen property. Easy. Hiking boots or sneakers are appropriate. Not stroller or handicap accessible. The Traphagen property includes the 1791 Tallman-Budke House and the 1820 Vanderbilt - Budke - Traphagen House, both on the New York State and National Register of Historic Places. Trail Length: 1.5 miles 10:30am - Tour of the 1791 Tallman-Budke House with Town Historian Larry Kigler Optional: Continue tour of other historic sites in West Nyack 11:30am - Drive 1.5 miles to the Historic Clarkstown Reformed Church, 107 Strawtown Road, West Nyack, NY 10994 The steeple of the Historic Clarkstown Reform Church is visible to the adjacent New York State Thruway and has been an assembled parsonage since 1750. The current church building dates to 1871. During the Revolutionary War, General George Washington made his headquarters on four separate occasions in Rockland County in nearby Tappan and corresponded with the first Pastor of the church. Washington’s troops camped in the area and marched through on their way to victory at Yorktown. Stop by for a tour of this wonderful historic church led by the Current Pastor, Reverend Richard Hasselbach and view copies of the correspondence between Washington and the first Pastor. 12:30pm - Drive .5 miles to 1840 Tavern, 1 Strawtown Road, West Nyack, NY 10994. Participants responsible to pay for their own lunch.

@ Stony Point Battlefield State Historic Site

Detailed Times/Hours: Event runs from 11am-4pm.

Come and join Spencer's Addition Continental Regiment, a unit from the Continental Army with a unique history. Soldiers will demonstrate marching, drilling, camp life, clothing, muskets, and more! Cannon firing at 3pm.

@ Piermont Railroad Station Museum

Detailed Times/Hours: Doors open 1p-4p

Take a tour of this 1883 landmark RR Station. Learn about Piermont’s unique and diverse history, its role in the American Revolution and WW II, and the longest railroad in the world, which in 1851 left from Piermont’s pier to Lake Erie. View three award-winning documentaries [Last Stop, Piermont’s Papermill, & All Aboard] on the 2nd floor. Hikers can access the station via the scenic Erie Path, which overlooks the majestic Hudson. Parking is available for motorized visitors. Additional activities: — Piermont’s Farmer’s Market is in Flywheel Park from 10 AM to 3 PM.

@ The Stephen & Betsy Corman AMC Harriman Outdoor Center

Detailed Times/Hours: Weekend event starts Fri 9/19 3pm and ends Sun 9/21 11am

Join a spirited group of volunteers for a weekend of light trail maintenance, teamwork, and connection at the beautiful Corman AMC Harriman Outdoor Center. This hands-on event is a great way to contribute to the upkeep of Harriman State Park’s beloved trail system while enjoying a fun and rewarding weekend outdoors. Whether you're new to trail work or already handy with a rake and loppers, this weekend is open to all skill levels. We’ll provide guidance, tools, and good company. Plus, there will be plenty of time to unwind at the lake, swap stories around the fire, and enjoy delicious meals we’ll prepare together. Event Highlights Trail Work Session: Saturday Morning - 10:00 AM meet at the tool shed We’ll begin with a short training session on the basics of trail maintenance—no prior experience necessary! Then, we’ll divide into teams and head out to work on designated trail sections nearby. Projects include: clearing brush, cleaning water bars, reblazing, and removing small obstructions. We’ll wrap up by mid-afternoon and return to camp with plenty of time to swim, paddle, or just relax. No tools? No problem. We’ll provide gloves, eye protection, and tools. Just bring your sturdy boots, sun hat, insect repellent, water, snacks/lunch, and a sense of adventure. All participants must sign the NYNJTC online waiver in addition to Eventbrite registration Shared Meals at Camp: Cook and dine together for a real back-to-basics bonding experience. Free Time: After Saturday’s work, enjoy optional swimming, paddling, or lounging at Breakneck Pond. Campfire & Connection: Celebrate your efforts with a classic evening fire—bring your favorite snacks and beverages to share. This event is led by the chapter's Harriman Program Committee volunteer leaders. Paddling and yoga equipment is available at the camp free of charge and courtesy of the NY-North Jersey AMC chapter. The camp is accessible by public transportation.

@ Stony Point Battlefield State Historic Site

Detailed Times/Hours: This is a half hour event plus Q & A. Followed by cannon firing at 3pm.

Join performers Gary Petagine and Sean Grady as they present their new historical play "A Casualty of Betrayal: The David S. Franks Story". Benedict Arnold’s two aides – Richard Varick and David Franks – are suspected of colluding with him in his treason. Varick goes on to eventually become mayor of NYC; what happens to Davis Franks is revealed in this play.

@ The Stephen & Betsy Corman AMC Harriman Outdoor Center

Detailed Times/Hours: Weekend starts Fri 9/26 at 3pm and ends Sun 9/28 at 11am

Celebrate the changing seasons and crisp mountain air with a weekend that blends outdoor fun, fall foliage, and Oktoberfest-inspired festivities. We’re bringing Bavarian charm to Harriman State Park—hikes, yoga, and campfire camaraderie. Whether you're looking for challenging trails or laid-back leisure, there's something here for everyone. Event Highlights: Morning Yoga Sessions: Start your day with invigorating yoga sessions led by a certified instructor. Salute the sun and warm up your muscles as you prepare for the day's adventures. Group Hikes: Enjoy the fiery foliage on scenic group hikes for all levels Lakeside Chill Time: Paddle, swim, or relax dockside with good company Oktoberfest Happy Hour: Bring your favorite beer or cider to enjoy with soft pretzels and light snacks Campfire : Wrap up each day with a relaxing campfire gathering. Expect warmth, stories, stargazing —bring your own beverage and snacks. Optional Games: and other low-key fun This event is led by the chapter's Harriman Program Committee volunteer leaders. Paddling and yoga equipment is available at the camp free of charge and courtesy of the NY-North Jersey AMC chapter. The camp is accessible by public transportation. Accommodation: Stone Lodge Cabin: Stay in a comfortable shared indoor lodging has 3 bedrooms, each with 4 bunks, a large center common room, full kitchen and ensuite bathrooms. Lakeside Beaver Brook Shelters: Stay in cozy shelters by the lake, each accommodating two two-person backpacking-style tents. Shelters will be shared, bring only 1 to 2 person tents. Modern Amenities: Enjoy the convenience of modern bathhouses with hot showers and flush toilets nearby. Shared picnic tables, bear boxes, and fire rings are available. Check-in: Friday at 3:00 PM (arrive by 6:00 PM if purchasing Friday dinner) Check-Out: Sunday at 11:00 AM (guests may stay and enjoy the camp until 3:00 PM)

@ Bear Mountain State Park

We will begin at the Shore of Hessian Lake, near the paddleboat dock. The first leg will be a paved flat path around the lake. The Major Welch trail will veer hard left and proceed up the back of Bear mountain. This section is a long steady climb with a few near rock scrambles. We recommend a Hiking stick or trekking poles to ease your way along. The trail flattens up a bit only near the very top, at which point we will take a break. Perkins Fire Tower will be open (weather permitting) and there is a wonderful clearing (with a coin-op binocular viewer) that provides a view of the Manhattan skyline on clear days. The walk back will be along the Appalachian trail. There are a lot of stairways installed so the passage down will be more leisurely. On the way back down there are a few good places to stop and view the valley or have a handful of Trailmix. Leading the hike will be Ryan Gerbehy, an experienced hiker and guide.

@ Tallman Mountain State Park

We will hike through the historical Tallman Mountain State Park and learn its interesting history as a former oil tank farm. Then it’s out the Piermont Pier to follow in the footsteps of the 40,000 US Troops per month who marched to the waiting ships to transport them to the Atlantic Theatre during WWII. Finally, we will learn of the historic transformation of Piermont, NY from a blue collar factory town to its present day status.