Gunpowder Falls State Park: Hereford Area

GFSP_LeftyKrehTrail.jpegLocated in northern Baltimore County, the Hereford Area’s 3,620 acres feature a scenic wilderness setting preserved under state Wildlands status for nature appreciation and outdoor adventures. Anglers can enjoy a nationally renowned special trout management area located downstream from Prettyboy Reservoir, and hikers and horseback riders can explore more than 20 miles of wooded trails. The Big Gunpowder Falls also attracts canoeing, kayaking and tubing enthusiasts throughout the year.

Please be respectful to others and take your trash with you. Alcohol is not permitted in the park.


Hikers and horseback riders are welcome to enjoy over 20 miles of scenic, rocky, and occasionally steep trails in the Hereford area. Please stay on designated trails; this area is designated by the Maryland General Assembly as a State Wildlands for its unique wilderness character and ecological value. Bicycles are strictly prohibited.

Formerly known as the Gunpowder South Trail, the Lefty Kreh Fishing Trail runs along Gunpowder Falls in an area that stretches from Prettyboy Reservoir to Big Falls Road.

Named after avid Maryland conservationist Bernard Victor “Lefty” Kreh, Kreh used every available means to promote conservation, clean water, and giving back to the outdoors. Kreh’s works spearheaded the expansion of saltwater fly fishing across the country and then the world. In 1974, he completed the seminal book on the sport—Fly Fishing in Saltwaters. He is also known for the Lefty’s Deceiver; a uniquely practical fly pattern he designed to fool striped bass—Maryland’s State fish—into biting an angler’s line. The bucktail fly pattern is the most widely used and imitated saltwater fly in the world.

Gunpowder Falls State Park Hereford Area Trail Map

A new map of the trails at Gunpowder Falls State Park's Hereford Area 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 map is in a PDF format that requires Adobe Reader. To get the free Adobe Reader go to


A nationally renowned blue-ribbon trout stream, the Big Gunpowder Falls is managed by Maryland DNR from Prettyboy Dam to Blue Mount Road as a special trout management area for catch and release with artificial lures only.

A Maryland Non-Tidal Fishing License and a trout stamp are required for anyone 16 years-of-age or older. For more information, visit the Maryland DNR Fisheries website.

River Recreation

The Gunpowder River in this section offers opportunities for both novice and advanced paddlers. The range of difficulty ranges from Class I to Class III. The more difficult section of the river lies between Falls Road and York Road. The section downriver from York Road is considered easier.

The river flows into private property downriver of Big Falls Road. Please respect the rights of private property owners.

Wild azaleas at the Hereford Area

Personal flotation devices are required for all persons canoeing or kayaking on the river. Helmets are required for canoeists and kayakers using the river between Prettyboy Dam and York Road. Because the water in this section of the river is released from the bottom of Prettyboy Reservoir, the water temperature ranges from 45 to 50 degrees year-round.

Youth-Group Camping

Organized youth group camping with a permit is available at Camp Wood. The camp includes tent sites under a mature forest, fire rings, grills and a comfort station. An amphitheater is also available for programs. Call 410-592-2897 for more information and reservation details.

Mill Pond Cottage

Hereford’s Mill Pond Cottage provides overnight accommodations for up to eight people in a beautiful historic and natural setting.​​​​​​​​​