Long Ravine Trestle

Shady Glen is an unincorporated community in Placer County, California. Shady Glen is located 1.25 miles (2.0 km) north of Colfax. It lies at an elevation of 2451 feet (747 m).

Rollins Dam (National ID # CA00255) is a dam on the border of Nevada and Placer counties in northern California, in the United States. The earthen dam was constructed in 1965 by the Nevada Irrigation District, with a height of 228 feet (69 m), and a length of 1,840 feet (560 m) at its crest. It impounds the Bear River, a tributary of the Feather River, for hydropower, flood control, irrigation water storage, and municipal water use. The dam is one of the ten facilities owned and operated by the Nevada Irrigation District. The dam is part of the Yuba-Bear Hydroelectric Project. The reservoir it creates, Rollins Reservoir, has a normal water surface of 1.3 square miles (3.4 km2), and a maximum capacity of 66,000 acre-feet. Recreation includes trout fishing in the spring, and bass fishing in the summer. The California Office Of Environmental Health Hazard Assessment has issued a safe eating advisory for any fish caught in Rollins Reservoir due to elevated levels of mercury.

The Bear River Bridge was located in Nevada County, California, from 1908 to 1963, replacing an earlier wooden structure. When built over the Bear River, it was the highest railway bridge in the state. The bridge was built by the Nevada County Narrow Gauge Railroad, under the management of Sarah Kidder. From the surface of the water, at an average stage, up to the track was 200 feet (61 m). The total length was about 900 feet (270 m), and at the time of construction there were no approaches, the opposite banks being abrupt. The pier foundations were built of reinforced concrete, requiring more than 500 cubic yards. The piers and superstructure were of structural steel, of which about 500 tons were used. All the steel material was furnished by the American Bridge Company of San Francisco, and the constructing contractors were Shattuck & Edinger Construction Company, also of San Francisco. The total cost of the bridge was approximately US$70,000. The engineering involved much difficulty—principally due to the unusual height of the structure. At the beginning of the work the contractors stretched a 2.25 inch diameter steel cable from bank to bank more than 200 feet (61 m) above the Bear River, and 1,000 feet (300 m) long. By means of this cable all of the structural steel material required, as well as the concrete, were hoisted and conveyed by a trolley to the required point and lowered to the proper position. It took about six months to complete construction. Only a small force of men were employed and the work necessarily progressed rather slowly. The bridge was on a 1 mile (1.6 km) long cut-off which shortens the road 2 miles (3.2 km), and also eliminated two long wooden bridges, each 100 feet (30 m) high, and one 400 feet (120 m) tunnel. The bridge was taken down to make way for the Rollins Dam in 1963.

The Colfax District Cemetery is a cemetery in Colfax, Placer County, California, at 180 N. Canyon Way.

Colfax station is an Amtrak train station in Colfax, California. Served by the California Zephyr, it is unstaffed. The station was built in 1905 by the Southern Pacific Railroad and was restored in the early 21st century; in addition to a waiting room, the building also houses the Colfax Heritage Museum. The platform is movable to accommodate Union Pacific rotary snowplows, which are liable to scrape a platform eight inches above top of rail.

Colfax (formerly Alden Grove, Alder Grove, Illinoistown, and Upper Corral) is a city in Placer County, California, at the crossroads of Interstate 80 and State Route 174. The population was 1,963 at the 2010 census. The town is named in honor of U.S. Vice President Schuyler Colfax (1869–73), a bronze statue of whom stands at Railroad Street and Grass Valley Street. (This is one of two known statues of Schuyler Colfax in the United States, the other located in Indianapolis, Indiana.) Some of the town's notable features include the newly restored Southern Pacific Railroad colonnade-style depot (which houses the Colfax Museum and Chamber of Commerce) built in 1905, the downtown shops on Main Street, and Colfax High School, which serves a large surrounding area.

Colfax High School is a four-year public high school in Colfax, California in the United States. It is in the Placer Union High School District in Placer County. The school currently serves about 700 students living between Auburn, Grass Valley, and Alta/Dutch Flat. The school itself is located on 40 acres (16 ha) in the Bear River valley north of downtown Colfax and adjacent to Colfax Elementary School. The student body self-identified as 85.3% white, the average classroom size is 25–27, and there are 3.6 students per computer. Students are also given Chromebooks as of 2014. Ninety-five percent of the teachers have a full credential and the average length of time they have been teaching is 19 years. The graduation rate is 100.0% as of the 2007–2008 academic year.Colfax High's mascot is the falcon, and its school colors are green and white.

Chicago Park (formerly: Storms Station) is a residential and unincorporated historic agricultural community in Nevada County, California. It is located along Highway 174, with its center at the intersection of Mt. Olive Road. The neighborhood gets its name from its founding residents, who came from Chicago to California in the late 1800s to grow fruit, which was often shipped back to Illinois for consumption. Chicago Park is about 9 miles southeast of Grass Valley and about 3 miles north of Colfax.

Secret Town was a historical mining town in Placer County, California. It was located 5 miles (8.0 km) northeast of Colfax, at an elevation of 2904 feet (885 m).

Buena Vista is a former settlement in Nevada County, California, 3 mi (4.8 km) north of Chicago Park. Its elevation is 2,631 ft (802 m) above sea level.

Iowa Hill (formerly, Iowa City) is an unincorporated community in Placer County, California, United States. The town is located 6.5 miles northwest of Foresthill 9 miles east of Colfax and 58 miles northeast of Sacramento. It lies at an elevation of 2861 feet. The community relies completely upon solar panels and generators for power. Its population is around 200 people. Iowa Hill Road claims a small handful of lives every decade, and along with the community's "off grid" status, prevents the town from growing in population. The community boasts many hardcore cyclists and is appealing to visitors due to the abundance of recreational opportunities. Iowa Hill Road is a very steep, one-lane, winding road embedded within the mountains. There are no safety guardrails. Since ambulance service from Colfax takes a long time, emergency medical transport is supplemented by CALSTAR, the area's air rescue helicopter. A landing pad is located next to the town fire house.

Walloupa (also, Waloupa) was a historic mining community in Nevada County, located about 1/2 mile south of You Bet. It was named by its white developers after a Nisenan chief, and should not be confused with the Nisenan village of Walloupa, which was located about 15 miles to the west near Rough and Ready.