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  • Volunteer – Habitat Restoration Team – 12/27/25 – 2 – 4 pm

    Sherwood House at Cromwell Valley Park 2002 Cromwell Bridge Road, PARKVILLE, MD, United States

    We will remove invasive plants from the park and in warmer weather, also plant natives and maintain restored habitat – great opportunities for high school students for community service and volunteers who like to work outdoors. We usually meet at the back of the Sherwood House, 2002 Cromwell Bridge Rd, Baltimore, MD 21234. However, we

  • NOWN – Hawk Migration: The History and the Mystery with John Canoles

    Featured
    Sherwood House at Cromwell Valley Park 2002 Cromwell Bridge Road, PARKVILLE, MD, United States

    Friday, January 16 6:00 pm Night Out with Nature Speaker Series “Hawk Migration the History and the Mystery” – Follows the origins of fall hawk migration study at Hawk Mountain, Cape May and the migration over the Piedmont and how hawk migration has evolved over the years.  The presentation will include a discussion about the

    $10

  • 3-1 Scrambled Eggs

    Cromwell Valley Park 2175 Cromwell Bridge Road, Parkville, MD, United States

    Sunday, March 1st - 1:00 - 2:30 pm All Ages Wood Frogs and Spring Peepers have some amazing adaptations to allow them to survive Maryland’s late winter and early spring. Help unscramble the mystery behind their different egg masses in the park ponds and learn about these cool amphibians while seeing who is thawing out.

  • 3-6 Full Worm Moon Night Hike and Campfire

    Cromwell Valley Park 2175 Cromwell Bridge Road, Parkville, MD, United States

    March 6th, 7:00 pm - 8:30 pm. Ages 8+. Indigenous people took note of when worm castings appeared each year as the ground thawed. Join a Naturalist to look for these interesting piles of worm poop and discover other early signs of spring. $6/person. REGISTRATION REQUIRED

    $6

  • 3-7 Fire, Flames and Flammables

    Cromwell Valley Park 2175 Cromwell Bridge Road, Parkville, MD, United States

    March 7th - 1:00 pm - 2:30 pm Ages 10+. For thousands of years, nature has provided resins and fibers that are flammable. Hike with a Naturalist to find these materials and learn how to use them. $3/person. REGISTRATION REQUIRED For questions or assistance in registering for an event, select the help button on the

    $3

  • 3-8 Hibernation Nation

    Cromwell Valley Park 2175 Cromwell Bridge Road, Parkville, MD, United States

    Sun, March 8, 1 pm - 2:30 pm - Ages 4+. How do bears sleep, chipmunks rest, and woodchucks snooze their way through 3 months without eating and still survive? Join a Ranger as we seek out wildlife, and their dens and burrows, on a short hike. Wear sturdy shoes and dress for the weather. $3/person.

    $3

  • 3-13 Volunteer with CVPC and Green Trust Alliance – THE GARDENS!

    Sherwood House at Cromwell Valley Park 2002 Cromwell Bridge Road, PARKVILLE, MD, United States

    When two wonder-powers get together to make the park's special places even more special, you don't want to miss being part of that change! Please join us on Friday, March 13th at 1:00 pm at the Sherwood House to help prepare the Honor Garden and the Sherwood Herb Garden for the spring.   Activities include cutting back dead

    Free

  • 3-14 Eastern Bluebird Training

    Cromwell Valley Park 2175 Cromwell Bridge Road, Parkville, MD, United States

    Sat, March 14, 10 am - 12 pm  Ages 18+. Want to become a citizen scientist? Interested in helping out our Eastern Bluebird population at the park? Learn how to identify common species of cavity nesting birds, how to safely observe and monitor adults and their young, and how to accurately report your observations. This

  • 3-15 Shamrocks & Horseshoes

    Cromwell Valley Park 2175 Cromwell Bridge Road, Parkville, MD, United States

    Sun, March 15 - 11 am - 12:00 pm  All Ages. Learn about nature’s good luck charms from cultures all around the world! Go on a hunt for shamrocks and paint a lucky horseshoe to take home. $3/person. REGISTRATION REQUIRED  For questions or assistance in registering for an event, select the help button on the

    $3

  • 3-18 Spring Senior Stroll

    Cromwell Valley Park 2175 Cromwell Bridge Road, Parkville, MD, United States

    Wednesdays, March 18 to May 20 - 9:30 am - 10:30 am Ages 55+. Walking in nature provides benefits to both the mind and body. Enjoy a relaxing stroll with one of our Naturalist along some of Cromwell Valley’s less strenuous trails. FREE!  Dates: 3/18, 3/25, 4/1, 4/8, 4/15, 4/22, 4/29, 5/6, 5/13, 5/20. REGISTRATION REQUIRED

    Free

  • NOWN – March 20, 2026 – Wildlife Rescue and Rehabilitation

    Sherwood House at Cromwell Valley Park 2002 Cromwell Bridge Road, PARKVILLE, MD, United States

    Come join us to learn about the Phoenix Wildlife Center; its mission, its research projects, and how wildlife rehabilitation supports populations in decline.  Questions are welcome!!!  Now in its 26th year, this 100% community supported organization is here for YOU and the animals we save. Speaker:  Kathy Woods will share her experiences with all participants.

    $10

  • 3-21 Spring Chickens

    Cromwell Valley Park 2175 Cromwell Bridge Road, Parkville, MD, United States

    Sat, March 21 - 11 am - 12 pm  All Ages. Greet our resident egg layers and meet our new baby chicks! Learn what it’s like to grow up in an egg and how long it takes to hatch. Then help throw some lunch to our feathered bunch. FREE! REGISTRATION REQUIRED. For questions or assistance

  • 3-22 Early Spring Wildflowers

    Cromwell Valley Park 2175 Cromwell Bridge Road, Parkville, MD, United States

    Sun, March 22 - 1 pm - 2:30 pm  Ages 16+. Some early blooms have been used for medicines, some for tonics, and even some for brewing ale. Join a Ranger to seek out the microclimates and adaptations which allow these plants to flower so early. Wear sturdy shoes and dress for the weather. $6/person.

    $6

  • 3-28 Prickly Pizza?

    Cromwell Valley Park 2175 Cromwell Bridge Road, Parkville, MD, United States

    Sat, March 28 1 pm - 3 pm  Ages 6+. Many plants have evolved toxic chemicals or other defenses to protect themselves from predation. Learn the safe way to harvest one of these plants – stinging nettle – and then bring it back to the nature center to try on top of pizza. (Don’t worry

    $6

  • 3-29 Primitive Technology: Primitive Fish Hooks

    Cromwell Valley Park 2175 Cromwell Bridge Road, Parkville, MD, United States

    Ages 18+. The Indigenous people of Maryland made fish weirs, spears, fishing line and hooks. Learn how to twist hand line and make gorge hooks from Hawthorne thorns. $6/person. REGISTRATION REQUIRED

    $6

  • 4-3 The Full Frog Moon Hike

    Cromwell Valley Park 2175 Cromwell Bridge Road, Parkville, MD, United States

    Ages 8+. Join a Naturalist for a frog-filled spring night hike. Wear shoes and/or boots that can get wet. $6/person. REGISTRATION REQUIRED

    $6

  • 4-4 Hippity Hoppity Trail Trek

    Cromwell Valley Park 2175 Cromwell Bridge Road, Parkville, MD, United States

    All Ages. Pick up a self-guided activity booklet at the nature center and then hop outside to find your clues which will lead you on a short hike. When you get to the end, come back to retrieve an egg-cellent prize! FREE! REGISTRATION REQUIRED

  • 4-11 Critter Craft

    Cromwell Valley Park 2175 Cromwell Bridge Road, Parkville, MD, United States

    Sat, April 11 10-11am Ages 2 to 6, with an Adult. Meet one of our critters at the Cromwell Valley Park and make a critter craft to take home with you. $3/child. REGISTRATION REQUIRED FOR CHILD ONLY

    $3

  • 4-12 Garlic Mustard Pull & Pesto

    Cromwell Valley Park 2175 Cromwell Bridge Road, Parkville, MD, United States

    Sun, April 12 1pm-2:30pm Ages 5+. Grab your work gloves and join us as we pull this invasive weed. Then follow us back to the kitchen to learn how to turn this pest into a delicious garlic mustard pesto! $6/person.  REGISTRATION REQUIRED

    $6

  • 4-18 Primitive Technology: Osteo-technology

    Cromwell Valley Park 2175 Cromwell Bridge Road, Parkville, MD, United States

    Sat., April 18 1pm-3pm Ages 18+. Beads made from animal bone have been found in many neolithic graves. We will use stone tools to cut and shape bone for a wrist band or necklace. Instruction in cordage manufacture included. $6/person. REGISTRATION REQUIRED

    $6

  • 4-19 Breezy Beats: Recycled Can Wind Chimes

    Cromwell Valley Park 2175 Cromwell Bridge Road, Parkville, MD, United States

    Sun, April 19 10:30am-12pm Ages 5+. Turn yesterday’s recycling into today’s music! Bring your clean, empty cans and join a Naturalist to design and decorate your own eco-friendly wind chime for Earth Day. $3/person. REGISTRATION REQUIRED

    $3

  • 4-25 Native Only Plant Swap

    Cromwell Valley Park 2175 Cromwell Bridge Road, Parkville, MD, United States

    Sat, April 25 9am-3pm All Ages. Clearing out some Black-eyed Susan’s? Want to plant some Butterfly weed? Bring in your potted native plants and take home something new! Please label your plants to include basic information (name of plant, sun, shade, wet, dry…) so they can thrive in the new home. Please drop off plants

  • 4-26 Nature’s Light: Botanical Suncatcher Hike

    Cromwell Valley Park 2175 Cromwell Bridge Road, Parkville, MD, United States

    Sun, April 26 1pm-3pm Ages 8+. The sunlight is getting longer with each spring day. Take a guided hike with a Naturalist to gather leaves, petals, and other treasures from the landscape. Then use your finds to craft a gorgeous suncatcher that will bring the beauty of the season into your home! $6/person. REGISTRATION REQUIRED.

    $6

  • 5-1 Lantern Light Night Hike

    Cromwell Valley Park 2175 Cromwell Bridge Road, Parkville, MD, United States

    Fri, May 1 8pm-9:30pm Lantern Light Night Hike – Ages 8+. Upcycle pantry cans into glowing lanterns, then join a Naturalist for a magical nighttime adventure. As we explore the trails under the stars, your handmade lantern will light the way! $6/person REGISTRATION REQUIRED

    $6

  • 5-2 Springtime Bug Bonanza

    Cromwell Valley Park 2175 Cromwell Bridge Road, Parkville, MD, United States

    Sat, May 2 1:30pm-3pm Springtime Bug Bonanza – Ages 5 to 12, with an Adult. As the weather warms, the ground comes alive! Meet the fascinating insects emerging in spring, discover their secret roles in the ecosystem, and make a fun insect-inspired craft to take home. $3/child. Meet at the Sherwood House – Sherwood Farm

    $3

  • 5-3 Let’s Go O’s!

    Cromwell Valley Park 2175 Cromwell Bridge Road, Parkville, MD, United States

    Sun, May 3 9am-11am Let’s Go O’s! – Ages 12+. These neo-tropical migrants return to Cromwell Valley each spring to build their nests and raise young. Come experience the Baltimore and Orchard Orioles in action as we walk the park’s trails. Bring binoculars if you have them. FREE! REGISTRATION REQUIRED

  • 3-28 Drop-in Gardening!

    3-28 Drop-in Gardening!
    Cromwell Valley Park 2175 Cromwell Bridge Road, Parkville, MD, United States

    Ages 13+, with an Adult. Join us for a morning in the garden. We provide direction, gloves, tools, and water. You bring a hat, sunscreen and a little energy. Drop-in program. FREE!

    Free

  • 5-9 Drop in Gardening!

    Cromwell Valley Park 2175 Cromwell Bridge Road, Parkville, MD, United States

    Sat, May 9 9am-11am Drop in Gardening! – Ages 13+, with an Adult. Join us for a morning in the garden. We provide direction, gloves, tools, and water. You bring a hat, sunscreen and a little energy. Drop-in program. FREE!

  • 5-10 Historic Lime Kiln Bottom

    Cromwell Valley Park 2175 Cromwell Bridge Road, Parkville, MD, United States

    Sun, May 10 1pm-2:30pm Historic Lime Kiln Bottom – Ages 14+. Cromwell Valley was once known as Lime Kiln Hollow, or Bottom. Hike to the reconstructed kilns on the Blue Trail, learn their history, and then bush whack to see others which have been hidden by nature over time. $3/person REGISTRATION REQUIRED

    $3

  • NOWN – Controlled Fire Burning – May 15, 2026

    Sherwood House at Cromwell Valley Park 2002 Cromwell Bridge Road, PARKVILLE, MD, United States

    May 15, 2026 - 6 pm - 8 pm - in the Sherwood House $10 p/person drinks and desserts provided - Ages 18+ Jen will discuss the history of humans and fire in the eastern United States and the importance of fire in maintaining healthy ecosystem function and to complete plant life cycles.  She will

    $10

  • Spring Senior Stroll – Multiple Dates

    3-25 Spring Senior Stroll
    Cromwell Valley Park 2175 Cromwell Bridge Road, Parkville, MD, United States

    Wednesdays, March 18 to May 20 - 9:30 am - 10:30 am Ages 55+. Walking in nature provides benefits to both the mind and body. Enjoy a relaxing stroll with one of our Naturalist along some of Cromwell Valley’s less strenuous trails. FREE!  Dates: 3/18, 3/25, 4/1, 4/8, 4/15, 4/22, 4/29, 5/6, 5/13, 5/20. REGISTRATION REQUIRED

    Free

  • Wednesday – Polliwogs!

    Tuesday – Polliwogs!
    Cromwell Valley Park 2175 Cromwell Bridge Road, Parkville, MD, United States

    Wed., April 15 to May 20 10:30am-11:30am Ages 2 to 5, with an Adult. Discovering nature is a lifelong journey. In this class, you and your little one will explore the natural world through hands-on activities, nature play, stories and crafts. Non-mobile siblings only, parent/guardian must be an active participant. This program will be held

    $60

  • 5-23 Primitive Technology: The Atlatl & Dart

    Cromwell Valley Park 2175 Cromwell Bridge Road, Parkville, MD, United States

    Sat., May 23 1pm-3pm Ages 16+. The atlatl is one of mankind’s most ancient hunting tools, used with a long dart, as the projectile of choice. Learn how to craft a simple atlatl and also make a dart to test at the end of the program. $6/person REGISTRATION REQUIRED

    $6

  • 5-24 Dandelions

    Cromwell Valley Park 2175 Cromwell Bridge Road, Parkville, MD, United States

    Sun, May 24, 11am-12pm Dandelions – Ages 6+. One of our most common weeds is actually edible, has antibiotic properties, and can be made into a non-caffeinated “coffee” from the roots. Learn about the cheerful yellow flower and make a craft to take home. $3/person. REGISTRATION REQUIRED

    $3

  • 5-30 Garden Impressions: Plant Prints on Cloth

    Cromwell Valley Park 2175 Cromwell Bridge Road, Parkville, MD, United States

    Sat., May 30 10am-12pm Garden Impressions: Plant Prints on Cloth – Ages 8+. Capture the colors and textures of spring in a work of art you can keep forever. A Naturalist will guide you through pressing and printing fresh botanicals from the garden onto fabric. $6/person. REGISTRATION REQUIRED

    $6

  • 5-31 The Beatles!

    Cromwell Valley Park 2175 Cromwell Bridge Road, Parkville, MD, United States

    Sun., May 31 1pm-2:30pm The Beatles! – Ages 4 to 10, with an Adult. No, not the rock group, but just as cool! Discover the most diverse group of insects on the planet and learn what makes a beetle, a beetle. Go home with your very own baby beetle to raise and watch in amazement

    $6

  • 30’s & Birdies on Thursdays

    Cromwell Valley Park 2175 Cromwell Bridge Road, Parkville, MD, United States

    30's and Birdies on Thursday Want a fun night out after work with like-minded folks?   Join other 30-year olds for a casual birding  hike (2 miles) scouting for Baltimore Orioles and other migratory birds of Cromwell Valley Park.    Come alone or with a friend and enjoy! Thursday,  June 4th from 5:30 pm - 7:00 pm

    $5

  • 6-6 Park Explorers

    Cromwell Valley Park 2175 Cromwell Bridge Road, Parkville, MD, United States

    Saturday, June 6; 10:00am-3:00pm Park Explorers – All Ages. Visit the Willow Grove Nature Center and pick up your Park Explorer booklet which will lead you on a self-guided hike. Upon your return, get your booklet stamped! FREE! Drop-In  

  • 6-6 Aromatherapy 101

    Cromwell Valley Park 2175 Cromwell Bridge Road, Parkville, MD, United States

    Saturday, June 6; 1:00pm – 3:00pm Aromatherapy 101 – Ages 18+. Are you curious about how to safely use aromatherapy for your personal health and wellness? Join Beverly Hamilton for this experiential class and learn how to safely use 7 essential oils to create a blend for your personal use. Topics include: a brief history

    $10

  • 6-7 Nature on Film: Make Your Own Camera

    Cromwell Valley Park 2175 Cromwell Bridge Road, Parkville, MD, United States

    Sunday, June 7; 1:00pm-3:00pm Nature on Film: Make Your Own Camera – Ages 10+. Join a naturalist to create your own camera out of a recycled can and go on a hike to learn photography techniques. Personal cameras and cell phones welcome! $2.00/person REGISTRATION REQUIRED

    $2

  • 6-13 Fishing with a Ranger

    Cromwell Valley Park 2175 Cromwell Bridge Road, Parkville, MD, United States

    Saturday, June 13; 9:00am-11:00am Fishing with a Ranger – Ages 6+. Join us to try your hand at catching a panfish out of the Gunpowder River. We supply the worms and the rods! $3.00/person REGISTRATION REQUIRED

    $3

  • Two Dam Hike

    Sherwood House Entrance 2002 Cromwell Bridge Road, Baltimore, MD
    $10

  • 6-14 Arthropod Adventure

    Cromwell Valley Park 2175 Cromwell Bridge Road, Parkville, MD, United States

    Sunday, June 14 at 1:00 PM to 2:00 PM Arthropod Adventure – All Ages Two, four, six, eight, ten legs! Join a naturalist as we search under logs and rocks for our local insects, many-legged millipedes and other critters! $2.00/person.  REGISTRATION REQUIRED 

    $2

  • NOWN – Chesapeake Working Landscape: Past, Present, and a Hopeful Future – September 18, 2026

    Sherwood House at Cromwell Valley Park 2002 Cromwell Bridge Road, PARKVILLE, MD, United States

    September 18, 2026 – Dr. Wayne Bell "The Chesapeake Working Landscape: Past, Present, and a Hopeful Future" A history of land use on the Chesapeake Bay watershed, from pre-colonial times to the present, and insights that land use changes provide for bird conservation. Background - Dr. Bell is Senior Associate and former Director of the

    $10

  • Mondays & Thursdays – Adult Garden Club

    Mondays – Adult Garden Club
    Cromwell Valley Park 2175 Cromwell Bridge Road, Parkville, MD, United States

    Mondays April 6- Oct. 26  8:30am-10:30am & Thursdays April 9 - Oct. 29  8:30am-10:30am Ages 18+. Do you enjoy gardening, but don’t have the space or a deer-proof fence? Join like-minded green thumbs (and beginner brown thumbs) to grow your own vegetables, herbs and flowers and tend to our shared garden plots. We’ll provide the

    $46