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**Location & Access**
East 81 is a public boat ramp facility located on Twin Lakes near Arlington in Brookings County, South Dakota (44.29°N, -97.13°W). The site features a two-lane boat ramp, courtesy dock, and paved parking areas designed to accommodate kayakers, canoeists, and motorboats.
**Facilities & Usage**
This is a heavily used access point, particularly during spring and summer months when the area experiences moderate to high public use. Day-use amenities include a gatehouse entrance, picnic areas with shelters, comfort stations, playground, and designated swim areas. Note that a park entrance license is required to access boat ramps within South Dakota state park and recreation area boundaries—check current requirements before your visit.
**Planning Your Visit**
Twin Lakes provides a popular launching point for fishing and recreational boating. Given the high seasonal use, especially during peak months, arrive early if possible to secure parking and convenient ramp access. The facility's multiple amenities make it suitable for extended day trips and family outings.