When submitting eBird observations at Mark Twain State Park, it is most helpful to start a new checklist for each hotspot in the state park. Use the general hotspot when you have a checklist that includes multiple locations or if no other hotspot or personal location is appropriate for your sightings.

The I Love the Finger Lakes website has tips for birding Mark Twain State Park.

Located at the southern end of the Catharine Valley Trail, this state park lies between the Village of Horseheads and the hamlet of Pine Valley.

Named for the great 19th-century author who spent summers in the area, Mark Twain State Park is the home of one of the most scenic and challenging 18-hole courses in the area.

The scenic state park provides 3 miles of rolling nature trails through a variety of habitats including woodland, wetland, shrub/scrub and grasslands. In addition, the Chemung Valley Audubon Society has participated in developing a primitive birding trail through deciduous forest, shrub land, and hemlock forest surrounded by a cattail marsh along Catharine Creek.