Question: How long is the river that Lochmere Archeological District located on?

Context paragraphs:
North Warwick Historic and Archeological District: North Warwick Historic and Archeological District is a national historic district located in Warwick Township, Chester County, Pennsylvania.  It is adjacent to the Hopewell Furnace National Historic Site.  The district includes 55 contributing buildings, 39 contributing archaeological sites, 13 contributing structures, and 1 contributing object in a mineral rich, well forested area.  Archaeological remains document prehistoric habitation dating back to 3000 BC.  The contributing buildings include log and fieldstone buildings, many of which date to the 18th and 19th centuries.  They include two well designed Georgian style dwellings dated to 1817 and 1822.  Also located in the district are the Bethesda Church, or Lloyd's Meeting House (1782), Pine Swamp Evangelical Church (1894), and Monocacy Schoolhouse (1884).

Conjurer's Neck Archeological District: Conjurer's Neck Archeological District is a set of two historic archaeological sites and national historic district located at Colonial Heights, Virginia.  The district includes the previously listed Conjurer's Field Archeological Site prehistoric village site (44CF20) and the site of a Colonial-period plantation house, known as the Kennon House or Old Brick House (44CF646).  The original house was built between 1725 and 1750, and rebuilt in 1879 after a fire.  The site possesses undisturbed and stratified cultural features dating to the late 1700s and afterward.

Anangula Archeological District: The Anangula Site (also Anangula Archeological District and Ananiuliak Island Archeological District) is an archaeological site in the Aleutian Islands of Alaska.  Located on a 1.5 mi long island off the western coast of Umnak Island, it lies 3.1 mi north-northwest of Nikolski Bay.  The site documents one of the earliest known human settlements in the Aleutian Islands, dating to c. 6400 BCE.  It was in the 1970s believed to be a remnant of people thought to have migrated here across the land bridge from Asia.

Seminole Canyon State Park and Historic Site: Seminole State Park and Historic Site is located on US Route 90, east of the Pecos River High Bridge, 9 mi west of Comstock in Val Verde County in the U.S. state of Texas.  The park is conducive to camping, biking, bird watching, back packing and archeological study.  Cave art and archeological artifacts date back to the earliest human habitation in the area.  The park is part of the larger Seminole Canyon Archeological District on the National Register of Historic Places listings in Val Verde County, Texas.

Winnipesaukee River: The Winnipesaukee River is a 10.5 mi river that connects Lake Winnipesaukee with the Pemigewasset and Merrimack rivers in Franklin, New Hampshire.  The river is in the Lakes Region of central New Hampshire.  The river's drainage area is approximately 488 sqmi .

Barnes Woods Archeological District: Barnes Woods Archeological District is a national historic district located near Seaford, Sussex County, Delaware.  The district includes four contributing sites.  They are two small base camps and two procurement camps, representing a segment of the settlement system of Native American groups living in the Nanticoke River drainage between about 3000 B.C. and A.D. 1700.

Lochmere Archeological District: The Lochmere Archeological District is a large archeological area on the banks of the Winnipesaukee River in Belknap County, New Hampshire, near the village of Lochmere.  The area, part of which is now preserved by the state as the Brennick Lochmere Archaeological Site, is a multi-component site with evidence of human occupation from the Middle Archaic through the Late Woodland periods.  The site was occupied in historic times by the Winnipesaukee sub-tribe of the Pennacook people, and is near Aquadoctan (aka The Weirs), one of the largest native towns of prehistoric New Hampshire.

Kentland Farm Historic and Archeological District: Kentland Farm Historic and Archeological District is a historic home, archaeological site, and national historic district located near Blacksburg, Montgomery County, Virginia.  The district encompasses a complex of 19th century agricultural outbuildings associated with a Federal and Greek Revival style brick dwelling built 1834–1835.  Located in the district are significant archaeological resources that include a complex of Late Woodland village or camp sites.

Naples Archeological District: The Naples Archeological District is an archaeological district located on the east bank of the Illinois River at Naples, Illinois.  The district includes sixteen archaeological sites which were primarily occupied during the Woodland period.  The area was most active during the Middle Woodland period, when it served as an important trade site in the Hopewell exchange system.  Over a dozen mounds are included in the district; these mounds mainly served as burial sites, though a number were used to store refuse.  The area also includes several large village sites, as Naples was a habitation site in addition to a trade center.

Mellor Village and Mounds Archeological District: Mellor Village and Mounds Archeological District, also known as Site 23CP1, is a historic archaeological site and national historic district located near Lamine, Cooper County, Missouri.  It is a Middle Woodland Period village site situated on a terrace in the Lamine River locality of the Missouri River Valley.  The pottery and stone tools from the site belong to the technological/artistic tradition that is described as "Hopewell."

Supporting paragraphs: Lochmere Archeological District Winnipesaukee River
Answer: 10.5 mi