Rosaryville is a 982 acre day-use park and the location of the historic Mount Airy Mansion. Miles of trails for hiking, biking and equestrians are available for day use. To gain access to Rosaryville State Park, make a right turn into the entrance just south of Osborne Road while traveling south on U.S. 301. Two pavilions, each accommodating 200 guests, are available for rent. A bathroom is a short distance from the pavilion area. A $100 security deposit is required for all pavilion rentals. For pavilion reservations at Rosaryville State Park please call 301-856-9656.

hiking
2 days ago

Love this place. Trail was still pretty muddy which equated to a quiet peaceful hike with no one else on the trail, just me and my lab. Completed it counter clockwise this time. Beautiful canopy and nice place to reset your heart and mind.

hiking
2 months ago

bring a compass, watch out for self centered dangerous mntn bikers who don't care if you are walking. the trails were originally designed for hunt club so you will see neat things that if you understand riding along way. But it's a great park to learn how to use a compass in. I did when I was a kid, i still get lost. great trail, just ignore the mountain bikers

Ok first! The trail is confusing in the beginning. Use your trail app GPS!! There are 3 ways to enter the trail. If you go counter clockwise you will have no problems. If you go clockwise, you will exit the trail in 5 mins, then you will have to cross this closed off parking lot then a street to enter the real beginning of the clockwise trail. This is a serious mountain biking trail. The clockwise trail is moderate. The counterclockwise loop is a bit harder.

Nice trail, lots of Bikes.

hiking
4 months ago

whoa this trail is horribly confusing if you're a newbie here. we felt like we were going in circles at first. going in a group can lead to chaos too because we also had to be mindful of mountain bikers. other than that the scenery is peaceful, earthy, and mild to moderately challenging. No restrooms just porta potty things and we never saw them except when leaving park.
the trail is long and we stopped at a certain point and just looped back. saw a toad, 2 turtles, bird nest, 2 lizards as far as wildlife sightings go.
people ride their horses here but they have equestrian trails if they are not on the hiking and biking trails.

hiking
5 months ago

Trail was in great shape, weather was perfect, and not too much traffic (mostly mountain bikes, a few walkers/runners, two horses).

hiking
5 months ago

We love hiking this trail. There were a few areas on trail today that were washed out due to the heavy rains. Still a great workout.

hiking
6 months ago

There were a lot of bicyclers on the trail, which I did not like because it was already too narrow for 2 hikers side by side. Be sure to look down otherwise you'll trip. overall, great hike in an area that I never thought to check out.

mountain biking
6 months ago

We took our 10 and 12 year old boys for their first intermediate ride here today. It was a very nice combination of uphills and downhills. Several of the little bridges were partially washed out, and we had to carry our bikes over a few larger fallen trees, which was pretty fun (probably just due to recent flash flooding). It was a fun and challenging course for the kids, especially with the terrain and tree roots that cover the almost 9 mile ride. Nice time, and I'll be back.

trail running
7 months ago

Very good trail and challenging run workout. Did a training run this morning (counterclockwise). Since its single track had a couple close calls with mountain bikers but everyone was cool/friendly! Plenty of shade, only about four very short sections without tree cover.

trail running
7 months ago

Excellent trail! Nice canopy. Decent elevation.

8 months ago

nice day hike. did it in 3 hours.

walking
9 months ago

Ok. There was a lot of mountain bikes.

10 months ago

Very challenging

trail running
10 months ago

Nice trail for getting some miles in, not too technical - a good training loop.

hiking
11 months ago

Great hike, easy walk with a few ups and downs. Narrow trail is shared with mountain bikers, no issues. Didn't see many people and the ambience was quiet.

hiking
Friday, February 03, 2017

Great hike. Will come back to run it next week. Not hard. Length is the only thing that makes it Moderate.

Wednesday, October 12, 2016

Either I got lost, or this trail is 10.5, not 9.5. I based my morning off of one less mile and was not happy about missing a work meeting.

Tuesday, September 13, 2016

As a hiker, I had a poor experience. I was continuously stepping aside as best I could to avoid large groups of mountain bikers. Trail was not clear and we managed to circle back to the start of the train twice, never getting to do the whole loop.

Sunday, September 11, 2016

Did all 9 hiking today. Exhausting! Didn't even see a bug! But I like that. Probably beautiful as leaves change.

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