San Juan Island National Historical Park, also known as American and English Camps, San Juan Island, is a U.S. National Historical Park owned and operated by the National Park Service on San Juan Island in the state of Washington.
 The park is made up of the sites of the British and U.S. Army camps during the Pig War, a boundary dispute over the ownership of the island.
 Both of these camps were set up in 1859 as response to a border controversy triggered by the killing of a pig.
 The camps were occupied for 12 years, until the islands were awarded to the United States by Kaiser Wilhelm I in an arbitration agreed by the parties in the 1872 Treaty of Washington.
 The British abandoned their camp in November 1872, while the American camp was disbanded in July 1874.
 The camp sites were designated a National Historic Landmark in 1961, and listed on the National Register of Historic Places in 1966.
 The park was created by an Act of Congress in 1966.
The Hyde Exploring Expedition, sponsored by brothers Talbot and Fred Hyde Jr., and directed by Dr. George H. Pepper, conducted excavations in Chaco Canyon from 1896 to 1901, when accusations of impropriety levied by Edgar L. Hewett put an end to their archeological surveys.
 A subsequent investigation by Steven Holsinger of the US General Land Office vindicated the Hydes and their partner, Richard Wetherill.
Harpers Ferry National Historical Park is located at the confluence of the Potomac and Shenandoah rivers in and around Harpers Ferry, West Virginia.
 The park includes land in Jefferson County, West Virginia; Washington County, Maryland and Loudoun County, Virginia.
 The park is managed by the National Park Service, an agency of the U.S. Department of the Interior.
 Originally designated as a National Monument in 1944, the park was declared a National Historical Park by the U.S. Congress in 1963.
 The park includes the historic town of Harpers Ferry, notable as a center of 19th-century industry and as the scene of John Brown's abolitionist uprising.
 Consisting of almost 4000 acre , the landmarks the site on which Thomas Jefferson once said, "The passage of the Potomac through the Blue Ridge is perhaps one of the most stupendous scenes in Nature" after visiting the area in 1783.
 Due to a mixture of historical events and ample recreational opportunities, all within 50 miles (80 km) of Washington, D.C., the park was listed on the National Register of Historic Places on October 15, 1966.
 The Park's Superintendent is presently Tyrone Brandyburg.
Valley Forge National Historical Park is the site of the third winter encampment of the Continental Army during the American Revolutionary War, taking place from December 19, 1777 to June 19, 1778.
 The National Historical Park preserves the site and interprets the history of the Valley Forge encampment.
 Originally Valley Forge State Park, it became a national historical park in 1976.
 The Park contains historical buildings, recreated encampment structures, memorials, museums, and recreation facilities.
Gerald Shea "Jerry" Sharkey (April 18, 1942 – April 7, 2014) was an American historic preservationist and historian of the Wright brothers, who conceived the idea for the Dayton Aviation Heritage National Historical Park in Dayton, Ohio.
 The Dayton Aviation Heritage National Historical Park, which preserves historic sites used by the Wright Brothers throughout Dayton, was established in 1992.
 Sharkey had led an alliance of the Wright family, members of the U.S. House of Representatives, the local media and U.S. Federal Judge Walter H. Rice to create the national historical park.
 Many of the sites associated with the Wight brothers (as well as the surrounding buildings) would likely have been demolished if not for the preservation efforts spearheaded by Sharkey.
 According to Tom Crouch, a senior curator of aeronautics at the National Air and Space Museum in Washington D.C., Sharkey's efforts helped to "ensure that what the Wright brothers achieved wouldn’t be forgotten."
 Despite his enthusiasm for the Wrights brothers and their work, Sharkey was reportedly afraid of flying.
Sitka National Historical Park (earlier known as Indian River Park and Totem Park) is a national historical park in Sitka in the U.S. state of Alaska.
 It was redesignated as a national historical park from its previous status as national monument on October 18, 1972.
 The park in its various forms has sought to commemorate the Tlingit and Russian experiences in Alaska.
Pecos National Historical Park is a United States National Historical Park in San Miguel and Santa Fe Counties, New Mexico.
 The park, operated by the National Park Service, encompasses thousands of acres of landscape infused with historical elements from prehistoric archaeological ruins to 19th-century ranches, to a battlefield of the American Civil War.
 Its largest single feature is Pecos Pueblo, a Native American community abandoned in historic times.
 First a state monument in 1935, it was made Pecos National Monument in 1965, and greatly enlarged and renamed in 1990.
 Two sites within the park, the pueblo and the Glorieta Pass Battlefield, are National Historic Landmarks.
Puʻ uhonua o Hōnaunau National Historical Park is a United States National Historical Park located on the west coast of the island of Hawaiʻ i in the U.S. state of Hawaiʻ i.
 The historical park preserves the site where, up until the early 19th century, Hawaiians who broke a kapu (one of the ancient laws) could avoid certain death by fleeing to this place of refuge or "puʻ uhonua".
 The offender would be absolved by a priest and freed to leave.
 Defeated warriors and non-combatants could also find refuge here during times of battle.
 The grounds just outside the Great Wall that encloses the puʻ uhonua were home to several generations of powerful chiefs.
The San Francisco Maritime National Historical Park is located in San Francisco, California, United States.
 The park includes a fleet of historic vessels, a visitor center, a maritime museum, and a library/research facility.
 The park is sometimes referred to as the San Francisco Maritime Museum, its former 1951 name that changed in 1978 when the collections were acquired by the National Park Service.
 Today's San Francisco Maritime National Historical Park was authorized in 1988; the maritime museum is among the park's many cultural resources.
 The park also incorporates the Aquatic Park Historic District, bounded by Van Ness Avenue, Polk Street, and Hyde Street.
Chaco Culture National Historical Park is a United States National Historical Park hosting the densest and most exceptional concentration of pueblos in the American Southwest.
 The park is located in northwestern New Mexico, between Albuquerque and Farmington, in a remote canyon cut by the Chaco Wash.
 Containing the most sweeping collection of ancient ruins north of Mexico, the park preserves one of the most important pre-Columbian cultural and historical areas in the United States.

Question: Which National Historical Park was preliminarily excavated from 1896-1901?
Answer: Chaco Culture National Historical Park