Rough and Ready, California

Bitney Corner is an unincorporated community in Nevada County, California. It lies at an elevation of 2356 feet (718 m). Bitney Corner is located 2.5 miles (4.0 km) west-northwest of Grass Valley.

Newtown (formerly, Sailor Flat, Newton and Sailors Flat) is an unincorporated community in Nevada County, California. It lies at an elevation of 2113 feet (644 m). Newtown is located 4.5 miles (7.2 km) west of Nevada City.Sailors discovered gold there, whence the name Sailors Flat.

Sunset View is a former settlement in Nevada County, California, located near Grass Valley. It was listed on an official map as of 1949.The 150 ft (46 m) long Sunset View Reservoir is located near the northeast end of the settlement.

The Woolman Semester was a semester school focused on the intersections of peace, social justice, and sustainability. The school operated from the Spring of 2004 through the Spring of 2016. Students came from all over the country to attend Woolman for a single semester during their high school junior, senior, or gap year. Students spent a semester deeply immersed in contemporary topics and exploring issues first hand . Students worked with each other, staff and interns to run the daily operations of the school, including cooking meals, chopping firewood, and growing and harvesting the food eaten at the school. The classes of the program were Global Thinking, Peace Studies, Environmental Science, Non-violent Communication, Ceramics, and Farm to Table. Woolman is the only Quaker (Friends) semester school in the country, and in accordance with the philosophy of Quaker Education the Woolman Semester curriculum centers around collaboration, activism, and open inquiry into local and global issues.

Casey Corner is an unincorporated community in Nevada County, California. It lies at an elevation of 1417 feet (432 m). Casey Corner is located in Penn Valley. The area is anchored by a shopping center, and several surrounding businesses.

The Oaks is an unincorporated community in Nevada County, California. The Oaks is located 1 mile (1.6 km) west of Grass Valley. It lies at an elevation of 2549 feet (777 m).

Alta Hill is an unincorporated community in Nevada County, California, USA. It lies at an elevation of 2648 feet (807 m). Alta Hill is located 1 mile (1.6 km) northwest of Grass Valley.

Penn Valley is a census-designated place (CDP) in Nevada County, California. The population was 1,621 at the 2010 census, up from 1,387 at the 2000 census.

Nevada Irrigation District (NID) is an agency in Northern California that supplies water for much of Nevada County and portions of Placer and Yuba Counties. The water is used for irrigation, municipal and domestic purposes. It was established in 1921. The Nevada Irrigation District owns and operates a system of ten reservoirs, many part of the Yuba-Bear Hydroelectric Project. These include: Bowman Reservoir, 68,510 acre-feet (84,510,000 m3) Combie Reservoir, 5,555 acre-feet (6,852,000 m3) Faucherie Reservoir, 3,980 acre-feet (4,910,000 m3) French Lake Reservoir, 13,800 acre-feet (17,000,000 m3) Jackson Lake Reservoir, 1,130 acre-feet (1,390,000 m3) Jackson Meadows Reservoir, 69,205 acre-feet (85,363,000 m3) Rollins Reservoir, 65,988 acre-feet (81,395,000 m3) Sawmill Reservoir, 3,030 acre-feet (3,740,000 m3) Scotts Flat Reservoir, 48,547 acre-feet (59,882,000 m3) The district also has seven hydroelectric plants. Unlike many of California's irrigation districts, it is not an electrical utility.

Gold Hill in Grass Valley, California, was the site of one of the first discoveries of quartz gold in California. While quartz gold was also found in other areas of Nevada County, California during the same time, it is this find near Wolf Creek that led to quartz-mining frenzy and subsequent creation of the Gold Country quartz-mining industry. The location is honored as a California Historical Landmark.

Lake Wildwood is a census-designated place (CDP) in Nevada County, California, United States. The population was 4,991 at the 2010 census, up from 4,868 at the 2000 census. Lake Wildwood is mainly a gated community and news about the CDP is published in a twice a month newspaper, The Wildwood Independent. Local businesses and residences are listed in the annual "Penn Valley Area Directory" published by "Pine Tree Press".

Jones Bar is a former settlement in Nevada County, California. It is located at an elevation of 1073 feet (327 m). Jones Bar is located on the South Yuba River, 5.25 miles (8.4 km) west-northwest of Nevada City.