Prince William Conservation Alliance
PWCA Calendar
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View our local nature calendar.

Questions? Contact PWCA at 703.490.5200,


Community Meeting-- 14th High School Proposed for Environmentally Sensitive, Property on PW Parkway
June 20, 7pm

It Can Happen Here: Grow Smart Prince William
Tuesday, June 25, 6:30 to 8:30pm

Wildlife Garden Work Days - Merrimac Farm
Saturday, June 8, 9 am to 12 pm
Saturday, June 22, 9 am to 12 pm
Saturday, July 6, 9 am to 12 pm

Butterfly ID Workshop
Saturday, July 13, 1 to 3 pm

2019 NABA Butterfly Count - Manassas Circle
Saturday, July 20, 10 am onwards

Bird Walk at Merrimac Farm WMA
Last Sunday of every month beginning at 8:00am, except for December, when we host the Nokesville Christmas Bird Count.

It Can Happen Here - Grow Smart Prince William

Tuesday, June 25, 6:30 to 8:30pm
Water’s End Brewery, 12425 Dillingham Square, Lake Ridge, directions

Prince William is unique within the Northern Virginia region, from the Potomac River shoreline to Bull Run Mountain. It’s time to take advantage of our assets.

Join PWCA and Tom Eitler, Senior Vice President of the Urban Land Institute, for a discussion on how new development could redefine Prince William County’s image to attract and retain talent as a means to compete in the Washington DC region, supporting our vision to create healthy sustainable communities.

Understanding the Land Economics of the Rural Area

Prince William County should consider exploring what the current and future demand is for agriculturally-related uses and limited business uses in the rural area. Understanding the socioeconomic trends that are affecting an area can help localities identify the potential for future land uses. Prince William County has 80,000 acres designated for rural uses. Mr. Eitler will discuss how the County may better understand and leverage the opportunities available in the Rural Area.  
Compact Suburban Development

Prince William development area includes tens of thousands of acres of both vacant land and land that can be revitalized or redeveloped in the Development Area. This land will provide the County with all what it needs to meets its long-term residential and economic development goals

However, recent new residential projects in Prince William are resulting in low-density sprawl and 80s-style suburban development that is detrimental to the County’s ability to attract and retain talent. The millennial and Z generations are not interested in locating in humdrum suburban areas and Prince William runs the risk that these important cohorts will not be attracted to the county.


Community Meeting-- 14th High School Proposed for Environmentally Sensitive, Limited Access Property on Prince William Parkway

Thursday, June 20, 7pm at the Development Services Building, Room 107.

Learn more about the new high school proposed for a property on the southern side of PW Parkway near the Hoadley Road intersection.

PWC School Board continues their pattern of proposing new schools on properties with significant environmental assets, historic resources, and a sole access point to major roads, such as Colgan HS (Rte 234), Forest Park HS (Rte 234), Jenkins ES (PW Parkway). No lessons learned so far...

Sponsored by PWCA and MidCounty Civic Association. School Board Member Willie Deustch and Occoquan Supervisor Ruth Anderson will be there to hear community comments and answer questions. Read our letter to the School Board...

Volunteer! Wildlife Garden at Merrimac Farm

Saturday, June 8, 9 am to 12 pm
Saturday, June 22, 9 am to 12 pm
Saturday, July 6, 9 am to 12 pm
Merrimac Farm Stone House, 15014 Deepwood Lane, directions

RSVP appreciated to, 703.490.5200

Thanks to volunteer support, we created an area at Merrimac Farm WMA where people and the environment can come together as one. It's a great area to watch wildlife, learn about native plants and pollinators, and get ideas for your own backyard.

We need help to keep nonnative invasive in check to maintain high quality habitat. Even if you can come just once, your help makes a big difference! Wear long pants, sturdy shoes, and long socks. Read more about Merrimac Farm Wildlife Management Area HERE.

Butterfly Identification Workshop - Brush Up for Next Weeks Butterfly Count

MonarchSaturday, July 13, 1 to 3pm at Merrimac Farm WMA, 15014 Deepwood Lane, Nokesville 20181, directions
RSVP Required to alliance@, 703.499.4954.

Brush up on your butterfly identification skills in this hands on workshop led by Larry Meade. From egg to adult, butterflies light up our neighborhoods and natural areas. Learn more about the butterflies you are most likely to see in the Prince William area.

Join us the following Saturday to count butterflies in the Merrimac Farm WMA Circle of the Annual Butterfly Count. Free, registration required.

2019 Annual Butterfly Count - Manassas Circle

Phoebe by Julia FlanaganSaturday, July 20, beginning at 10 am.

RSVP required to, 703-490-5200. You'll receive the meeting location for your survey team after you RSVP.

Help us count butterflies for the annual 4th of July Butterfly Count and learn more about butterfly populations close to home. This count is part of a national program led by the North American Butterfly Association (NABA), which compiles information about butterfly populations and distribution that is used to study effects of climate and habitat change on North American butterflies.

Here in Prince William on July 20, we'll form teams and see how many butterflies we can find within our count circle. We submit our compile results to NABA's national database for butterflies. We are also seeking tips on specific areas to survey - please email us if you have ideas.

Bird Walks at Merrimac Farm WMA

Phoebe by Julia FlanaganOn the last Sunday of every month at 8am (except December when we sponsor the Nokesville Christmas Bird Count) at Merrimac Farm, Stone House, 15014 Deepwood Lane, Nokesville, directions

We'll look for birds as we travel through the uplands to the edge of the floodplain, covering a variety of habitats, including open fields and woodland edges. Everyone is welcome.

Dress for the weather, bring binoculars and cameras. More info and RSVP (appreciated) to PWCA , 703.499.4954 or View the bird list for Merrimac Farm HERE.


The best time to plant a tree was 20 years ago. The second best time is today.
Prince William Conservation Alliance is a nonprofit watershed organization serving Prince William and surrounding communities. We're working to explore, enjoy and protect our natural areas, and increase community involvement in stewardship opportunities.