Walnut Grove Presbyterian Church

Walnut Grove is an unincorporated community in Center Township, Washington County, Arkansas, United States. It is located on Arkansas Highway 170, south of Farmington.

The Cane Hill Road Bridge (also Little Red River Bridge) was a closed-spandrel arch bridge built in 1923 located near Prairie Grove, Arkansas. It carried Arkansas Highway 170 over the Little Red River, and was in 2014 in the process of being bypassed. The bridge has a single span about 43 feet (13 m) in length, with an overall bridge length of 48 feet (15 m). The bridge is 15 feet (4.6 m) wide. AR 170 was the major north–south route in the area when the bridge was built, but this section has since been bypassed by the construction of United States Route 62. The bridge was built by the Luten Bridge Company of Knoxville, Tennessee.The bridge was listed on the National Register of Historic Places in 2010. The bridge was replaced by a box culvert.

Starks is an unincorporated community in Center Township, Washington County, Arkansas, United States. It is located on U.S. Route 62 between Farmington and Prairie Grove.

Appleby is an unincorporated community in Center Township, Washington County, Arkansas, United States. It is located on Arkansas Highway 170, south of Farmington and four miles southwest of Fayetteville.

The Mack Morton Barn is a historic eleven-sided barn at 11516 Appleby Road in Appleby, Arkansas. Built about 1900 to house cows and horses, it is sheathed in board-and-batten siding and topped by a hip roof with an eleven-sided cupola at the center. It is believed to be the only surviving geometrically unusual barn in the state.The barn was listed on the National Register of Historic Places in 2005.

The Highway B-29 Bridge is a historic bridge in Prairie Grove, Arkansas. It is a single-span concrete arch bridge, carrying Washington County Route 623 across the Illinois River. The arch has a span of 97 feet (30 m), and the total structure length is 100 feet (30 m). Its deck is 17 feet (5.2 m) wide, and the bridge is typically 20 feet (6.1 m) above the water. Built in 1923, the bridge is one of the first built in the county by the Luten Bridge Company, which used an innovative technique involving metal rings (polished for visual effect on this bridge) that reduced the amount of material required for the structure.The bridge was listed on the National Register of Historic Places in 2008.

The Lake-Bell House is a historic house in rural Washington County, Arkansas. It is located just north of a westward bend in County Road 80 on the north side of Prairie Grove Battlefield State Park. It is a single-story brick structure, with a side-gable roof and a gabled front entry portico with square columns. The front facade is a spare three bays wide, and the main block is but one bay deep, but obscures a rear ell that enlarges the building substantially. The house's construction date is uncertain, but it was probably built c. 1870 by Milton F. Lake, who moved to the area after the American Civil War.The house was listed on the National Register of Historic Places in 1974.

Hickory Creek is a tributary of the Illinois River in Washington County, Arkansas, in the United States. Its GNIS I.D. number is 50050.

Washington County is a regional economic, educational, and cultural hub in the Northwest Arkansas region. Created as Arkansas's 17th county on November 30, 1848, Washington County has 13 incorporated municipalities, including Fayetteville, the county seat, and Springdale. The county is also the site of small towns, bedroom communities, and unincorporated places. The county is named for George Washington, the first President of the United States. Located within the Ozark Mountains, the county is roughly divided into two halves: the rolling Springfield Plateau in the more populous north of the county and the steeper, forested Boston Mountains in the much less populated south. It contains three segments of the Ozark National Forest, two state parks, two Wildlife Management Areas, the Garrett Hollow Natural Area, and dozens of city parks. Other historical features such as Civil War battlefields, log cabins, one-room school houses, community centers, and museums describe the history and culture of Washington County. Washington County occupies 951.72 square miles (243,220 ha) and contained a population of 245,871 people in 89,249 households as of the 2020 Census, ranking it 4th in size and 3rd in population among the state's 75 counties. The economy is largely based on the business/management, education, sales, office/administration, and poultry production industries. Poverty rates, median household income, and unemployment rates best state averages, but lag national trends. Washington County has long had a reputation for education in the state. The University of Arkansas, the largest four-year college in the state, was established in Fayetteville in 1871. A Washington County campus of the Northwest Arkansas Community College was opened in 2019 in Springdale. Today, Washington County contains eight public school districts, including two of the largest districts in the state (Springdale Public Schools and Fayetteville Public Schools) and two private schools. It is included in the Fayetteville–Springdale–Rogers Metropolitan Statistical Area.

The Borden House is a historic house on the grounds of Prairie Grove Battlefield State Park in Prairie Grove, Arkansas. In the Battle of Prairie Grove on December 7, 1862, the original Borden House was one of the central points of the Confederate line, and was the scene of heavy casualties. The Borden House was burned the next day. Archibald Borden built the current house on the original site. It is a 1+1⁄2-story wood-frame house, five bays wide, with a side-gable roof pierced by three gabled dormers. A porch extends across the center three bays of the front.The house was listed on the National Register of Historic Places in 1977, and included in an enlarged National Register listing for the battlefield in 1992.

Prairie Grove is a city in Washington County, Arkansas, United States. The population was 7,045 at the 2020 Census. It is part of the Northwest Arkansas region, and home to Prairie Grove Battlefield State Park.

The Black Oak Cemetery is a historic cemetery in a remote area of Washington County, Arkansas, southwest of Greenland. It is located on a knob of land at the southern end of a north–south ridge east of Miller Mountain, and is best accessed via spur road running northward from Illinois Chapel Road (County Road 20) west of Arkansas Highway 265. The 3-acre (1.2 ha) cemetery contains an estimated 300 burials, with known dates of burial ranging from 1843 to 1935. The entrance to the cemetery is marked by a pair of stone piers, and its northern extent is thought to be marked by a line of cedar trees. Some of Washington County's earliest settlers are buried in this cemetery, including its first territorial representative, John Alexander.The cemetery was listed on the National Register of Historic Places in 1998.