Question: In which state of America will you find the Berlin Historic District which encompasses the ghost town of Berlin established as part of the Union Mining District and Berlin–Ichthyosaur State Park, a recreation area and historic preserve that protects ichthyosaur fossils and the ghost town?
Context: The Berlin Historic District encompasses the ghost town of Berlin in Nye County, Nevada.  The town was established in 1897 as part of the Union Mining District after the opening of the Berlin Mine the previous year.  The town never prospered to the same extent as other boom towns like Tonopah and Goldfield, and declined following the Panic of 1907.  The town was largely abandoned by 1911.  The site was acquired by the state of Nevada as part of Berlin–Ichthyosaur State Park in 1970. New Berlin Historic District is a national historic district located at New Berlin in Chenango County, New York.  The district includes 118 contributing buildings.  It encompasses the village's historic core and includes commercial, residential, civic, ecclesiastical, and railroad related buildings.  Among the notable buildings are the Central Hotel (ca. 1855), National Bank and Trust Building (ca. 1900), First Baptist Church (1840), St. Andrew's Episcopal Church (1848, designed by Richard Upjohn), Municipal Building, and New Berlin Central High School.  Also located within the district is the separately listed Horace O. Moss House. The State of North Carolina has a group of protected areas known as the North Carolina State Park System, which is managed by the North Carolina Division of Parks and Recreation (NCDPR), an agency of the North Carolina Department of Natural and Cultural Resources (NCDNCR).  Units of the system can only be established by an act of the General Assembly of North Carolina.  The park system began in 1916 when the summit of Mount Mitchell became first state park in the Southeastern United States.  According to the Division of Parks & Recreation, "the State Parks Act of 1987 lists six types of units included in the NC State Parks System."  These are "State Parks", "State Recreation Areas", "State Natural Areas", "State Lakes", "State Trails", and "State Rivers".  All units of the system are owned and/or managed by the division, and the division leases some of the units to other agencies for operation.  Most units of the park system are also components of State Nature and Historic Preserve. Calico is a ghost town and former mining town in San Bernardino County, California, United States.  Located in the Calico Mountains of the Mojave Desert region of Southern California, it was founded in 1881 as a silver mining town, and today has been converted into a county park named "Calico Ghost Town".  Located off Interstate 15, it lies 3 mi from Barstow and 3 miles from Yermo.  Giant letters spelling "CALICO" can be seen on the Calico Peaks behind the ghost town from the freeway.  Walter Knott purchased Calico in the 1950s, architecturally restoring all but the five remaining original buildings to look as they did in the 1880s.  Calico received California Historical Landmark #782, and in 2005 was proclaimed by then-Governor Arnold Schwarzenegger to be California's Silver Rush Ghost Town. Dighton Rock State Park is a public recreation area and historic preserve located on the eastern shore of the Taunton River in the town of Berkley, Massachusetts.  The 98 acre state park is the site of a small museum that houses the Dighton Rock, an 11 ft glacial erratic, covered with petroglyphs, that once sat on the banks of the river.  It is managed by the Massachusetts Department of Conservation and Recreation. Ghost Town (sometimes spelled Ghosttown) is the informal name of the Foster Hoover Historic District neighborhood in West Oakland, Oakland, California.  The community is known for its violence and blight .  Some people believe the name originates from a drug king pin who referred to the area as a ghost town due to the shortage of other drug dealers whose absence was attributed to the king pin's dominance over the area.  Others believe it derives from the two former casket companies located side by side on Filbert Street between 30th and 32nd Streets, while others claim that the presence of ghostly white people in an historically black neighborhood gave it its name.  Ghost Town stretches from 27th Street to 35th Street in the area immediately southwest of the MacArthur Maze.  Others see the neighborhood bounded by Adeline on the West and San Pablo on the East.  Ghost Town Farms, one of the more successful expressions of urban agriculture activity in Oakland is located in the heart of the district at 2727 Martin Luther King Jr.  Way, between 27th and 28th Streets.  The area is also one of Oakland's many open-air art galleries, with exceptional muralist work continually on exhibition, particularly along Martin Luther King Jr.  Way.  This neighborhood has an active citizen crime patrol, including one group of seniors who walk the neighborhood weekly to get physical exercise and report blight.  Jerry Brown, governor of California and former Mayor of Oakland stated: "Instead of an omnibus crime bill, you have to deal with shootings in Ghost Town in West Oakland and sideshows in East Oakland."  Brown made attempts to turn around the blighted West Oakland neighborhood after "60 Minutes" featured it in a television profile.  Housing prices have increased.  So has drug dealing, especially since nearby parks were closed by the City of Oakland.  Prostitution, in 2015, has been on the decline for at least a decade. Berlin–Ichthyosaur State Park is a public recreation area and historic preserve that protects undisturbed ichthyosaur fossils and the ghost town of Berlin in far northwestern Nye County, Nevada.  The state park covers more than 1100 acre at an elevation of 7000 ft on the western slope of central Nevada's Shoshone mountain range, 23 mi east of Gabbs. Chestnut Hill Reservation is a public recreation area and historic preserve surrounding the Chestnut Hill Reservoir in the Allston-Brighton neighborhood of Boston, Massachusetts.  The reserve is part of the Chestnut Hill Reservoir Historic District, is listed on the National Register of Historic Places, and is a City of Boston Landmark.  It is managed by the Department of Conservation and Recreation. Ghost Town Village (formerly "Ghost Town in the Sky) is a Wild West-themed amusement park in Maggie Valley, North Carolina, United States that is currently on hiatus.  An unusual aspect of this park is that it is located atop a mountain which can only be accessed by visitors via a 3370 ft chair lift or an inclined funicular railway.  These start at the parking area beside Jonathan Creek at an elevation of 3150 ft , climbing to the lower level of the park at 4400 ft , a climb of 1250 ft .  The recreated "Ghost Town" sits at 4600 ft , with the highest elevation in the park being about 4650 ft .  The park is located on a ridge extending from Buck Mountain border, an extension of the Cataloochee Divide, to the Great Smoky Mountains National Park.  The park's entrance is located on U.S. Highway 19, the main road through the town.  Ghost Town is promoted as "North Carolina's mile-high theme park." Silver City is a ghost town located at the mouth of Dragon Canyon on the west flank of the East Tintic Mountains in northeast Juab County in central Utah, United States.  It was a silver mining town approximately 90 mi south-southwest of Salt Lake City, Utah.  This area was considered part of the Tintic Mining District and also produced bismuth, copper, gold, and lead.  Settlement began with the first mining strikes here in 1869.  Silver City was inhabited until 1930 after the mines ran out.  Jesse Knight, known as the "Mormon Wizard" for his ability to find ore easily, decided to build a smelter in Silver City because it had the flattest ground in all of the Tintic Mining District.  Silver City had several mines in 1890, but the mines hit water and were abandoned.  Now there is nothing left other than a few holes where mines were, and a number of tailings piles.
Answer: Nevada