​Montgomery County

Seneca Creek State Park
11950 Clopper Road
Gaithersburg, MD 20878


Driving Directions:

From Washington, D.C, Virginia and points south, take I-270 north towards Frederick, Maryland. Take Exit 10, Clopper Road (Route 117). Turn right at the light at the bottom of the ramp. The park is approximately 2 miles on the left.

From points north, take I-270 south towards Washington, D.C., take Exit 11 (MD Route 124 west). Turn right at the light at the bottom of the ramp. At the second light, turn right onto Clopper Road (Route 117). The park is approximately 1.5 miles on the left.

Hours of Operation:

8 a.m. to Sunset, March-October

10 a.m. to Sunset, November-February

Pet Policy:

Pets are allowed in Seneca Creek State Park.

Hunting Policy:

  • General hunting permitted in 1,000 acre designated hunting area
  • Archery-only hunting for deer permitted in 2,000 acre designated hunting area
  • Managed shotgun deer hunting program in the Clopper area - lottery system to select hunters - Managed Hunt Permit required to participate in the hunt (not required to participate in the lottery)
  • Shotgun-only hunting for deer permitted in the Schaeffer Farm area - Managed Hunt Permit / free WHS permit / reservation required

Seneca Creek State Park

Fall trees at Seneca CreekThe park, comprised of 6,300 acres, extends along 14 scenic miles of Seneca Creek, as it winds its way to the Potomac River. The Clopper Day-Use Area contains many scenic areas, including the 90-acre Clopper Lake, surrounded by forests and fields. Picnicking, boat rentals, trails and a tire playground are just some of its recreational opportunities. A restored 19th century cabin and a self-guided path interpret the history of the area. Nearby, the Schaeffer Farm Trail Area offers 12 miles of marked trails for hiking and mountain biking. For the more adventuresome hiker, the 16.5-mile Seneca Creek Greenway Trail follows the entire course of the creek. About mid-May through June, the Schwartz peony gardens and field plants are in bloom.

Some Trails at Seneca Creek State Park to Temporarily Close

High usage areas near Riffle Ford Road and relevant trails may be inadvertently closed through winter 2016/2017 for sewer line maintenance. There will be Washington Suburban Sanitary Commission (WSSC) work along the Greenway Trail, and upstream along Long Draught Creek through Mink Hollow Trail. Work may close the trail to park users, to be indicated by trail entrance signs and barricades. The WSSC will be carrying out the projects. For further information and updates, call the commission at 301-206-7363.

Seneca Creek State Park Trail Maps

New maps of the trails at Seneca Creek State Park can be downloaded for free from this website. Please make sure to read the printing instructions and information for how to download the file to cell phones. The maps are in a PDF format that requires Adobe Reader. To get the free Adobe Reader go to Adobe.com.


Hiking and biking trails, boat rental, fishing, flatwater canoeing and kayaking, historic interest, hunting, picnicking, playgrounds, riding trails, picnic pavilions, a restored 19th century cabin, and cross-country skiing.

Seneca Creek State Park Boat Center
Hours of Operation:

  • Mid May until Mid June weekends only.
  • Mid June to late August/early September open Wednesday to Sunday.
  • Late August/early September to the last weekend in September weekends only.

The Seneca Creek Boat Center is open at 8 a.m. The last boat rental is at 90 minutes before sunset. Visa and Mastercard are accepted at the boat center. Come get your bait, fishing poles and tackle from the gift shop as well as t-shirts, disc golf equipment, ice cream, water and other gifts. The gift shop is open during the boat center normal hours of operation.

Boat Prices:

  • Canoes and Rowboats: $8/hour or $28/4 hours
  • 2 Person Pedal Boats: $8/hour or $28/4 hours
  • 1 or 2 Person Kayaks: $9/hour or $32/4 hours
  • 4 Person Pedal Boats: $12/hour or $40/4 hours
  • Pontoon boat Rides Saturday and Sunday 2 p.m. and 4 p.m.: $2 per person (private tours available by reservation only)

No gas powered motors allowed on the lake. Electric motors are allowed. Private watercrafts may be launched at the hand launch only boat ramp at the bottom parking lot off of the Boat Center.

  • Picnicking - Picnic areas with tables, grills, and comfort stations are open daily until sunset. Playgrounds are located near the picnic areas. Picnic pavilions for group picnics are available for rental. 

    Season beginning and ending dates, and shelter service charges
  • Park Office - A 140-seat auditorium may be rented weekdays for meetings.
  • Service Charges - Our shelters are open from Girls paddling at Seneca State parkApril through October; 50 person capacity shelter-$50/day; 150 person capacity shelter-$150/day; 200 person capacity shelter-$200/day. Our picnic grove area is open from April through September; 200 person capacity-$100/day; 100 person capacity-$50/day. Our Visitor Center has 140 person capacity and is $280/day. Our day use service charge for weekends and holidays April-October is $3/person, $5/person out-of-state residents; there is no charge November-March.
  • Trails - Over 50 miles of trails are open for hiking, horseback riding and bicycling and wind through a variety of habitat in Seneca Creek State Park. A detailed trail map can be purchased at the park office. Mountain biking and horseback riding are very popular at Seneca Creek, and the Schaeffer Farm Trails (click here for map) is considered a favorite place to ride. The Maryland Park Service does not rent horses, and only provides the trails as a means of recreation. 
  • Disc Golf Course - A 32-acre, 27-hole course, for both the amateur and the professional is at the park.
  • Hunting - See below for more detailed information. Statewide wildlife/hunting regulations apply.
  • The Black Rock Mill, located on Seneca Creek at Black Rock Road, is partially restored with outdoor interpretive exhibits.
  • The Seneca Schoolhouse, located on Route 190 west of Seneca, is a restored 19th century one-room schoolhouse, originally built for children of the Seneca Sandstone quarries along the Potomac River.
  • The Woodlands, a short self-guided trail located at the Clopper Day-Use Area park office, interprets the life and the estate of the Clopper Family.

Hunting at Seneca Creek State Park,
Patuxent River State Park and Monocacy NRMA

General Rules for all Hunting Areas

  1. You may enter the area one hour before shooting time to set up. Legal shooting time begins one half hour before sunrise.
  2. You must be out of the area by one hour after legal shooting time. Legal shooting time ends one half hour after sunset.
  3. You are responsible for familiarizing yourself with the hunting area boundary lines, safety zones and established trails throughout the hunting area.
  4. Portable tree stands and steps are permitted, but cannot be screwed or nailed into trees. All stands must be removed at the end of each day. The use of tree stands is recommended, especially when hunting near established trails.
  5. Maps depicting hunting areas are provided for your reference only. Observe posted hunting and boundary signs. All acreage figures are approximate.

Check-in Procedures

  1. All harvested deer must be checked in before midnight on the harvested day by using the internet (www.gamecheck.dnr.state.md.us ) or the Maryland Big Game Registration Phone Line (1-888-800-0121).
  2. The public land code used for harvested deer from Seneca Creek State Park is 442. Patuxent River State Park, the code is 440 and for Monocacy NRMA it is 282.


  1. All State and federal hunting laws, as well as park regulations, will be strictly enforced. Call Park Watch 1-800-825-7275 to report violations
  2. Maryland State Parks are “Trash Free”. All trash must be packed out.


  1. All hunters must wear the required type and amount of fluorescent orange during the deer firearms and muzzleloader seasons.
  2. Scouting is permitted from sunrise to sunset only. No weapons are to be carried while scouting. In order to avoid interfering with fellow sportsmen, Sunday scouting is recommended.
  3. Do not remove, cut, destroy, prune or deface any vegetation. Do not cut shooting lanes.
  4. Please report all violations of game laws or these hunting rules to the Natural Resources Police or Tawes Communications Center (1-800-628-9944) 24 hours a day.

Trail Maps

The Seneca Creek State Park Trail Guide, complete with a topographical map of the hiking and biking trails, is available for sale at the park headquarters.

Heron at Seneca Creek State Park

Seneca Creek State Park offers an accessible park office, six picnic shelters, and many family picnic sites. Three picnic sites have been designed specifically for wheelchair access. Seven of 11 restrooms in the park are accessible via paved walkways. The Boat Center has a paved lakefront walkway for fishing access.

For additional accessible amenities in Maryland State Forests and Parks, visit the Accessibility For All section of this website.

Join the Seneca Creek State Park Friends Of Group and support your park.​​​​​​​​​​

Online Services

Contact the Park Service

  • To Report Violations of Park Rules: 1-800-825-7275 (Park Watch) or 1-410-260-8888 (Communications Center)
  • General Information: 1-800-830-3974 (Annapolis Office)
  • Reservations: 1-888-432-2267
  • Email Us