Church of St. Philip-in-the-Field and Bear Canon Cemetery

Douglas County is a county located in the U.S. state of Colorado. As of the 2020 Census, the population was 357,978. The county is named in honor of U.S. Senator Stephen A. Douglas. The county seat is Castle Rock.Douglas County is part of the Denver–Aurora–Lakewood metropolitan statistical area. It is located midway between Colorado's two largest cities, Denver and Colorado Springs, and contains a portion of Aurora, the state's third-largest city. Douglas County has the highest median household income of any Colorado county or statistical equivalent. It is ranked seventh nationally in that category.

This is a list of the National Register of Historic Places listings in Douglas County, Colorado. This is intended to be a complete list of the properties and districts on the National Register of Historic Places in Douglas County, Colorado, United States. The locations of National Register properties and districts for which the latitude and longitude coordinates are included below, may be seen in a map.There are 29 properties and districts listed on the National Register in the county. Another property was once listed but has been removed.     This National Park Service list is complete through NPS recent listings posted January 19, 2024.

Ridgeline Open Space is a public park located within The Meadows neighborhood in Castle Rock, Colorado along the Front Range of the Rocky Mountains. It sits at an elevation of 6,607 feet (2,014 m) and consists of 370 acres (1.5 km2) of public land that has been designated for conservation and recreational use. There are over 8 mi (13 km) of trails with panoramic views of the Rocky Mountains to the west and Castle Rock below.

The Meadows is a master planned community, located in Castle Rock, Colorado along the Rampart Range of the Rocky Mountains Front Range. It is approximately 24 miles (39 km) south of Denver and 41 miles (66 km) north of Colorado Springs. The community is interconnected by 24 miles (39 km) of trails and contains 1,100 acres (4.5 km2) of parks and land for public use. Within the community, there are several schools, churches, playgrounds, ball fields, pools, restaurants and a cultural arts center.

Dawson Butte, elevation 7,474 ft (2,278 m), is a flat-topped mountain in Douglas County, Colorado. Adjacent to the mountain is the Dawson Butte Open Space, owned by Douglas County and managed by the County's Division of Open Space and Natural Resources. The mountain and open space are located about five miles south of Castle Rock.The publicly accessible portion of the open space covers 828 acres. A five-mile-long trail loops around the open space property. The trail is open to hikers, horseback riders, snowshoers, and mountain bikers. Dogs are allowed provided they are leashed. An old bridle path remains on the property, and some of the jumps are still set up.There is no public access to the top of the butte.

The Santa Fe Railway Water Tank, or Sedalia Water Tank, on the railway through Sedalia, Colorado in Douglas County, Colorado, is a historic object listed on the National Register of Historic Places. It is a cylindrical water tank 24 feet (7.3 m) in diameter, 43 feet (13 m) tall, with capacity of 140,000 US gallons (530 m3), upon a slag foundation, built in 1906. Per its NRHP nomination, it was installed by the Denver and Santa Fe Railway Company, a subsidiary of the Atchison, Topeka and Santa Fe Railway (AT&SF), an early railroad which built track through the area in 1887. It provided water for coal-powered steam locomotives from 1906 until 1950 when its "stand pipe" was removed, after water was no longer needed (when diesel locomotives had replaced steam ones). It was described in its NRHP nomination as follows: It was deemed significant "for its association with the operation of the Atchison, Topeka and Santa Fe Railway (AT&SF), an early railroad that constructed its track through the area in 1887. The tank provided water for the coal-fired steam locomotives that ran the line. At the end of WW II, diesel engines began replacing steam locomotives, and the need for large water tanks at frequent intervals along the rails diminished. Most steam locomotives were retired by the 1950s. It was later deeded to the Sedalia Water and Sanitation District for the community’s water supply. The period of significance began with the construction of the tank in 1906 and ended in 1950 when the stand pipe was removed. The steel tank also meets the registration requirements under criterion C for it represents a distinctive design and construction method. In the 19th and early 20th centuries, water stations usually consisted of elevated wooden water tanks. Steel tanks began to replace wood on some railroads after the turn of the century. The steel tank at Sedalia is an early example of the evolving technology, and it is believed to be one of the last surviving steel water tanks in the state."It is located within the railway right-of-way, about 200 yards (180 m) west of the intersection of U.S. Route 85 with State Highway 67 U.S. Route 85. It is closer to U.S. 85 and directly visible from that highway. It is also visible from Colorado State Highway 67, at least from its crossing of the rail tracks.

Sedalia is an unincorporated town, a post office, and a census-designated place (CDP) located in and governed by Douglas County, Colorado, United States. The CDP is a part of the Denver–Aurora–Lakewood, CO Metropolitan Statistical Area. The Sedalia post office has the ZIP Code 80135. At the United States Census 2020, the population of the Sedalia CDP was 177.

Castle View High School is a public high school in Castle Rock, Colorado. It is part of the Douglas County School District. It opened in August 2006.

Continental Divide Raceways was a race track located in Castle Rock, Colorado, about 30-mile (48 km) south of Denver. Built in 1959, it featured a 2.8-mile (4.5 km) road course, half-mile (.805 km) oval, and 4,200-foot (1,300 m) drag strip. The land was intended to be used for a multi-sport spectator venue, but a racing complex was built after a hill climb was staged on the property. The track saw its most active time in the 1960s, hosting the USAC National Championship, major sports car races, and Trans-Am. On July 30, 1972 Evel Knievel successfully jumped 11 Dodge vehicles on his motorcycle at the track. The track closed in 1979 due to a fatal accident but reopened in 1981, holding a NASCAR Winston West Series stock car race in 1982 before being sold to real estate developers in 1983. There was a motocross track called CDR Tech Track on the property where an AMA Motocross National was held in 1981 and 1982

KXWA (101.9 FM) is a radio station licensed to Centennial, Colorado, United States. The station serves the Denver metropolitan area and is currently owned by the WAY-FM Network. Its studios are located in Longmont, and the transmitter is near Castle Rock.

KJMN (92.1 FM, "La Suavecita 92.1") is a radio station broadcasting a Spanish adult hits format licensed to Castle Rock, Colorado, United States, serving the Denver-Boulder area. The station is currently owned by Entravision Holdings, LLC. Its studios are located in Denver near Sports Authority Field at Mile High, and the transmitter is west of Castle Rock.

Cherokee Ranch, in Douglas County, Colorado near Sedalia, has been a purebred cattle ranch since 1954, including raising Santa Gertrudis cattle. The ranch is private property but offers frequent public and private events and tours. The property overlaps with portions of the Cherokee Ranch petrified forest.A large portion of the ranch was listed on the National Register of Historic Places in 1994. The listing included 19 contributing buildings, five contributing structures, a contributing site, and a contributing object on 3,280 acres (13.3 km2). The buildings are distributed among four historic building groups created by two homesteaders and a rich heiress. The four groups are: Ranch Headquarters, originally the John Blunt Homestead and later known as Amnicola Cherokee Castle the Flower Homestead (Chickamauga), and the Johnson ranch buildings.The first part of the property eventually assembled was 160 acres (0.65 km2) homesteaded by Maine-born John E. Blunt. A former Union soldier, he arrived with his family in 1868 from Kansas in a covered wagon which brought apple tree slips. He settled on land along East Plum Creek at homestead site now on the south side of U.S. Highway 85. It was extremely cold in winters along the creek, so they moved to higher ground in 1873 and built a wood-frame house at the current location of ranch headquarters. An original apple tree brought to the new site survived in 1994. Blunt acquired others' homestead properties and eventually what he called Sunflower Ranch had 1,550 acres (6.3 km2) on which he farmed wheat, sorghum, and steers. The ranch was sold by Ray Blunt in 1954 to Mildred Montague Genevieve Kimball, known as "Tweet", who chose to call it Amnicola after her property in Chattanooga on the Tennessee River. Tweet Kimball, known as "a delightfully eccentric international traveler, philanthropist, equestrian, award-winning cattlewoman and legendary hostess", lived 55 years in Cherokee Castle.Her first of four husbands was Merritt Kirk Ruddock, of aristocratic family and C.I.A. connections.The ranch has 4,185 acres (16.94 km2) on both south and north of U.S. Highway 85, but the listing is limited to the property north of 85, which includes four historic building groups. The four are: Cherokee Castle, originally known as Charlford Castle, which is a 20th-century copy of a 15th-century Scottish castle. It is the main residence of the ranch and was built during 1926–28. It was designed by Denver architect Burnham F. Hoyt, who is known for his later design of the Red Rocks Park Amphitheater.the Flower Homestead (Chickamauga), began with English-born Frederick Gerald Flower ploughing 12 acres (4.9 ha) of land and stringing barbed wire and then, in 1894, filing a homestead claim. He built a stone house on the edge of a high plateau with views of the Front Range, and his wife and sister moved there in 1895. His remote property was accessed by a track which later became Daniels Park Road. Flower prospered and accumulated a total of 2,380 acres (9.6 km2), which was sold to Charles Johnson in 1924.the Johnson ranch buildings. The Wauhatchie Barn, an element of the Johnson Dairy Farm, has recently been restored.The listing covers property north of U.S. Route 85 and south of Daniels Park Road.