Fort Vasquez

Platteville is a Statutory Town in Weld County, Colorado, United States. The population was 2,955 at the 2020 census. It is adjacent to Fort Vasquez on U.S. Highway 85.

Fort Jackson was a fur trading post near the present-day town of Ione in Weld County, Colorado that operated from 1837 to 1838. It was one of the four trading posts along the South Platte River area. Nearby posts and competitors were Fort Vasquez, Fort Lupton, and Fort Saint Vrain.

Ione is an unincorporated community in Weld County, Colorado.

The Fort St. Vrain Nuclear Power Plant is a former commercial nuclear power station located near the town of Platteville in northern Colorado in the United States. It originally operated from 1979 until 1989. It had a 330 MWe High-temperature gas reactor (HTGR). The plant was decommissioned between 1989 and 1992. In 1996, it was converted into a conventional natural gas powered generating station, which as of 2011 has a capacity of just under 1000 MW.

Wattenburg or Wattenberg is an unincorporated community located in Weld County, Colorado, United States. The U.S. Post Office at Fort Lupton (ZIP code 80621) now serves Wattenburg postal addresses.

St. Vrain is a ghost town located in Weld County, Colorado, United States. The town was located adjacent to the frontier trading post of Fort Saint Vrain northeast of the confluence of Saint Vrain Creek and the South Platte River.

Fort Saint Vrain was an 1837 fur trading post built by the Bent, St. Vrain Company, and located at the confluence of Saint Vrain Creek and the South Platte River, about 20 miles (32 km) east of the Rocky Mountains in the unorganized territory of the United States, in present-day Weld County, Colorado. A historical marker notes the place where Old Fort St. Vrain once stood, today at the end of Weld County Road 40, located about seven miles north of Fort Vasquez, Colorado. Among those who helped to establish the fort was Ceran St. Vrain, after whom it was named. William Clark, governor of the territory, granted the Bent, St. Vrain Co. a license to trade on November 8, 1836. Like neighboring forts, the structure was built as a two-story adobe structure whose walls encased an interior courtyard. It accommodated trade with Native American tribes and mountain men engaged in fur trapping. It resembled the adobe building and plaza reconstructed at Fort Vasquez and Bent's Old Fort. Marcellin St. Vrain, Ceran's brother, managed the trading post. He employed such notable people as James Beckwourth, a mountain man, and Jean Baptiste Charbonneau, who was born to Sacajewea during the 1804-1806 Lewis and Clark Expedition. She accompanied the expedition with her husband, trader & trapper Toussaint Charbonneau as well as newborn Jean Baptiste, while filling the crucial role of translator to the Shoshone Indian tribe. After the Taos Revolt in 1847, the St. Vrain brothers both returned to St. Louis. After Ceran St. Vrain sold his shares of the Bent, St. Vrain Co., William Bent became sole proprietor by 1849. Bent moved to Fort St. Vrain temporarily before building a new Fort Bent in the Big Timbers area.

St. Vrain Creek (often known locally as the St. Vrain River) is a tributary of the South Platte River, approximately 32.2 miles (51.8 km) long, in north central Colorado in the United States. It drains part of the foothills north of Boulder and the Colorado Piedmont area in the vicinity of Longmont. The creek is formed by the confluence of North and South St. Vrain creeks at Lyons. The creek rises in several branches in the foothills of the Front Range northwest of Boulder. Middle St. Vrain Creek rises along the continental divide, west of St. Vrain Mountain. It descends in canyon to flow along State Highway 7 and past Raymond. It joins the shorter South St. Vrain Creek about two miles below Raymond. Parts of the South St. Vrain Creek form a five-mile (8.0 km) Class 5+ kayak run during normal flows. North St. Vrain Creek rises northeast of St. Vrain Mountain near Mount Alice and Chiefs Head Peak, and descends in a remote canyon to the east along U.S. Highway 36. The two branches join at Lyons, at the mouth of the canyon. East of Lyons, the combined stream flows southeast through farmland and ranch country, passing south of Hygiene and entering Longmont. It passes through the south side of Longmont where it is rimmed by a greenway trail and several parks. East of Longmont it flows generally northeast, meandering through a wide river bottom in ranch country and passing under Interstate 25 south of the intersection with State Highway 66. It joins the South Platte from the west just upstream from the ruins of Fort St. Vrain and approximately four miles (6.4 km) northwest of Platteville. St. Vrain Creek is joined by Left Hand Creek south of Longmont and Boulder Creek east of Longmont. The stream was named after Ceran St. Vrain, a pioneer trader.

Fort Lupton, located in the city of the same name, was a trading post from 1836 or 1837 to 1844. After operating as a stage coach station and used as a house, the building fell into disrepair and crumbled to all but a portion of one wall by the early 20th century. The trading post has been reconstructed yards away from its original site and is now part of the South Platte Historical Park in northwestern Fort Lupton, Colorado.

The Platteville Atmospheric Observatory located near Platteville, Colorado was one of the first major ionospheric heaters in the world. Operating from 1968 through 1984, it expanded knowledge of ionospheric processes greatly. The observatory continues operation, but now focuses on wind profiling. The first studies were made of HF heater induced airglow, heater-induced spread F, wide band heater-induced absorption, and heater created field-aligned ionization.

The Town of Gilcrest is a Statutory Town located in Weld County, Colorado, United States. The town population was 1,029 at the 2020 United States Census. Gilcrest is a part of the Greeley, CO Metropolitan Statistical Area and the Front Range Urban Corridor.

Aristocrat Ranchettes is an unincorporated community and a census-designated place (CDP) located in and governed by Weld County, Colorado, United States. The population of the Aristocrat Ranchettes CDP was 1,715 at the United States Census 2020. The Fort Lupton post office (Zip Code 80621) serves the area. The CDP is a part of the Greeley, CO Metropolitan Statistical Area.