Lake Mary Ronan State Park offers electricity at 22 individual campsites, paved campground road and spurs, a new and improved group camping area, new vault toilets and additional boat trailer parking and boat ramp. Most campsites can be reserved. The campground has 25 sites on 120 acres with an elevation of 3,770 ft. Just 7 miles west of Flathead Lake off the beaten path and shaded by Douglas-fir and western larch, this park provides a quiet opportunity to spot interesting birds. Trails lead into the surrounding area which abounds in wildflowers and wildlife. In the campground tent/RV sites, there is firewood, fire rings/grills, picnic tables, drinking water, trash cans, and vault toilets. Group campfire areas are available. You can also fish, swim, and camp. The maximum length of stay is 14 days during a 30 day period and pets must be on a leash. Fees are charged for day use and camping.

The lake is stocked with salmon, trout, bass and perch. Fishing is excellent!