National recreation areas are built for exactly that, recreation, and most of them treat a dog well. Lakes, rivers, and reservoirs with miles of shoreline trail, usually open to a leashed dog.
Every one below welcomes leashed dogs on at least some of its trails and shorelines, checked against its official page. They tend to be far more relaxed than the national parks.
Leash rules and swimming-area limits still apply, so glance at the page before you load the car.
AMISDog-friendly
BISODog-friendly
BICADog-friendly
CHATDog-friendly
CHICDog-friendly
CUREDog-friendly
DEWADog-friendly
GLCADog-friendly
GOGADog-friendly
LAKEDog-friendly
LARODog-friendly
SAMODog-friendly
WHISDog-friendlyFor a low-stress day out with a dog, a national recreation area is often the easiest yes on the federal map.
Usually yes, on a leash and away from the guarded swim beaches. Many of these areas are centered on a lake or river that a dog can wade into.