Park

Dalecarlia Reservoir Grounds park

Maryland, USA Potomac watershed 38.939°, -77.104°
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Nearby campgrounds
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Dalecarlia Reservoir Grounds -- Maryland park
Dalecarlia Reservoir Grounds Maryland · Potomac watershed
About this park

Dalecarlia Reservoir Grounds

Dalecarlia Reservoir Grounds is a scenic area located in Montgomery County, Maryland. The reservoir supplies drinking water to the District of Columbia and portions of Maryland. There are several good reasons to visit the area, including the stunning views, hiking trails, and fishing opportunities. The grounds are also home to a variety of wildlife, including deer, foxes, and birds.

Specific points of interest to see at Dalecarlia Reservoir Grounds include the historic pumping station, which is now a visitor center and museum. Visitors can learn about the history of the reservoir and how it has supplied water to the region for over 100 years. Another popular spot is the Azalea Garden, which features over 20,000 azaleas and other flowering plants.

Interesting facts about the Dalecarlia Reservoir Grounds include that it was designed by the famous landscape architect, Frederick Law Olmsted. The reservoir was built in the early 1900s and is still a vital source of drinking water for the region.

The best time of year to visit Dalecarlia Reservoir Grounds is in the spring when the azaleas are in full bloom. The hiking trails are also particularly beautiful during this time of year. However, the area is open year-round, and visitors can enjoy fishing, birdwatching, and other outdoor activities throughout the year.

Overall, Dalecarlia Reservoir Grounds is a beautiful and historically significant area that is well worth a visit for anyone interested in the outdoors or local history.
StateMaryland
WatershedPotomac
Latitude38.9388°
Longitude-77.1037°
Land designation

Park & land designation reference

A quick legend for the federal and state land categories Snoflo tracks. Each designation comes with different rules around access, recreation, and resource extraction.

National Park
Large protected natural areas managed by the federal government to preserve significant landscapes, ecosystems, and cultural resources; recreation is allowed but conservation is the priority.
State Park
Public natural or recreational areas managed by a state government, typically smaller than national parks and focused on regional natural features, recreation, and education.
Local Park
Community-level parks managed by cities or counties, emphasizing recreation, playgrounds, sports, and green space close to populated areas.
Wilderness Area
The highest level of land protection in the U.S.; designated areas where nature is left essentially untouched, with no roads, structures, or motorized motorized access permitted.
National Recreation Area
Areas set aside primarily for outdoor recreation (boating, hiking, fishing, often around reservoirs, rivers, or scenic landscapes); may allow more development.
National Conservation Area (BLM)
BLM-managed areas with special ecological, cultural, or scientific value; more protection than typical BLM land but less strict than Wilderness Areas.
State Forest
State-managed forests focused on habitat, watershed, recreation, and sustainable timber harvest.
Bureau of Land Management (BLM) Land
Vast federal lands managed for mixed use -- recreation, grazing, mining, conservation -- with fewer restrictions than national parks or forests.
Detailed forecast

Plan your visit down to the hour

Same weather feed Snoflo's iOS app uses -- updated continuously from NOAA / yr.no.

Hourly detail

Next 5 days, hour by hour

Temperature line with weather symbols on top, snow + rain accumulation as columns, humidity as a dotted line.

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Deep dive

5-day forecast table

Every 3 hours, broken out across temperature, snow, rain, humidity, and wind.

TimeConditionTemp (°F)Snow (in)Rain (in)Humidity (%)Wind (mps)Wind dir
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Long-term outlook

15-day temperature & precipitation

Daily temperatures, snow, and rain projected over the next two weeks.

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Stay nearby

Area campgrounds

Snoflo-tracked campgrounds within reach of Dalecarlia Reservoir Grounds, with reservations status.

Campground Reservations Toilets View
Marsden Tract Campground
Marsden Tract Group Campsite
Swains Lock Hiker-Biker Campsite
Camp Loop D
Camp Loop C
Camp Loop B

Responsible recreation & Leave No Trace

Know before you go
Check the operator's site for hours, permit requirements, seasonal closures, and fire restrictions before heading out.
Stay on trail
Stick to marked paths to protect vegetation, prevent erosion, and avoid disturbing wildlife habitat.
Respect wildlife
Observe from a distance, never feed wildlife, and store food securely if camping is permitted on-site.
Pack it in, pack it out
Carry out all trash, food scraps, and gear. Many parks have limited or no trash service.
Leave what you find
Don't take rocks, plants, or artifacts. They make the park what it is for the next visitor.

Set push alerts in the Snoflo app

Save Dalecarlia Reservoir Grounds as a favorite, set a custom threshold (precipitation, freezing temperatures, fire-restriction days), and the iOS app will push the moment conditions cross.

FAQ

About Dalecarlia Reservoir Grounds

What can I do at Dalecarlia Reservoir Grounds?

Most Snoflo-tracked parks support hiking, picnicking, and wildlife viewing. Check the operator's site for activity-specific rules (camping, fishing, paddling, hunting).

How fresh is the weather data?

The hourly forecast updates throughout the day from NOAA / yr.no. Streamflow comes live from USGS streamgauges.

When is the best time to visit?

Use the 15-day temperature & precipitation outlook on this page to plan -- pick a window with comfortable temperatures and low precipitation.

How do I get to Dalecarlia Reservoir Grounds?

Tap Directions in the hero above to open driving directions in Google Maps, or Open in map to center the Snoflo interactive map on the park.

Can I get alerts when conditions change?

Yes -- alerts are managed in the Snoflo iOS app. Favorite this park, set a threshold (temperature, precipitation), and you'll get a push the moment it crosses.

More parks

Other parks near here

Snoflo-tracked parks within driving distance of Dalecarlia Reservoir Grounds.