Fallbrook, California

Rancho Monserate was a 13,323-acre (53.92 km2) Mexican land grant in present-day San Diego County, California given in 1846 by Governor Pío Pico to Ysidro María Alvarado. The grant extended south and east of the present day Fallbrook down to the San Luis Rey River. The grant was bounded on the west by Pico's Rancho Santa Margarita y Las Flores.

The Tomahawk Fire was the second-largest wildfire of the May 2014 San Diego County wildfires, behind the Pulgas Fire. The fire, which started on May 14 around 9:45 AM, on the Naval Weapons Station Seal Beach Detachment Fallbrook (also known as Fallbrook Naval Weapons Station), scorched 5,367 acres (21.72 km2). The Fallbrook Naval Weapons Station is on the eastern side of, and provides an entry point to, Marine Corps Base Camp Pendleton and is adjacent to the community of Fallbrook. Evacuation orders were issued for several schools and housing areas, as well as the Fallbrook Naval Weapons Station and the closed San Onofre Nuclear Generating Station. By 8 PM PDT on May 14, the Tomahawk Fire had reached a size of 6,000 acres (2,400 ha). On May 16, the fire had burned 6,300 acres (2,500 ha), and it was 23% contained. By May 17, it had burned 6,500 acres (2,600 ha) and was 65% contained. During the evening of May 18, the fire was reported to be 100% contained.

Pala Mesa is an unincorporated community in San Diego County, California, United States. The community is at the junction of Interstate 15 and California State Route 76, 11.1 miles (17.9 km) south of Temecula. It sits adjacent to the town of Fallbrook.

The Lilac Fire was a fire that burned in northern San Diego County, California, United States, and the second-costliest one of multiple wildfires that erupted in Southern California in December 2017. The fire was first reported on December 7, 2017, burned 4,100 acres (1,659 ha), and destroyed 157 structures, before it was fully contained on December 16. The fire cost at least $8.9 million (2018 USD), including $5 million in firefighting expenses and property damage, and an additional $3.9 million in cleanup and erosion control costs. The fire threatened the communities of Bonsall, Oceanside, Vista, Fallbrook, and Camp Pendleton. During the fire, an estimated 10,000 residents were forced to evacuate, while a total of over 100,000 residents were forced to or advised to evacuate. On December 7, the Lilac Fire also cut the power to 20,000 people.

Rainbow is a census designated place (CDP) in northern San Diego County in the U.S. state of California. The population was 1,832 at the 2010 census, down from 2,026 at the 2000 census.

Naval Hospital Santa Margarita Ranch was a large US Navy hospital facility in Oceanside, California. Located on Camp Pendleton in Camp Pendleton South, California in San Diego County. Naval Hospital Santa Margarita Ranch was the first naval hospital in the area that opened in 1943 to support World War 2 wounded. Built on Rancho Santa Margarita y Las Flores, near the training Center's Lake O'Neill with 1,228 beds. In 1945 the hospital expanded to 1,584 beds. In 1950 the hospital was renamed Naval Hospital Camp Joseph H. Pendleton, Oceanside. The hospital was renamed a few times before being given its current name, Naval Hospital Camp Pendleton, in 1967. The 1943 hospital was built quickly, composed of 76 temporary, wood-frame buildings at first with 600 beds and opened on September 3, 1943. The hospital and support building were on 252 acres. Post war, in 1946 the hospital was reduced to 920 beds. In 1971 construction started on a new eight-story hospital, the new hospital opened in December 1974. The 1974 hospital was replaced with the current hospital in 2014. The site of the original Naval Hospital Santa Margarita Ranch is now: Lake O'Neill Campground, Camp Pendleton Youth Sports, O'Neill Fitness Center, Wounded Warrior Battalion West and the Camp Pendleton Fire Department Station 4.Naval Hospital Camp Pendleton, which replaced Naval Hospital Santa Margarita Ranch is the current hospital that operates in a 500,000-square-foot, four-story building that opened on January 31, 2014. The new complex was completed under the American Recovery and Reinvestment Act of 2009. A groundbreaking ceremony was held on December 2, 2010, and construction completed on October 17, 2013. The hospital is part of the US Military Health System. The hospital has 150 beds and was built under the Naval Facilities Engineering Command. Naval Hospital Camp Pendleton operates branch clinics in the Southern California area. Naval Hospital Camp Pendleton has a 26-bed emergency center, primary care, intensive care, care for active-duty military, veterans and their families. Other services include: nine operating rooms, six imaging rooms, labor and delivery program. The parking structure has a large solar energy system.

Rainbow Valley is a small valley in Riverside County and San Diego County in the U.S. state of California. It is the site of the settlement named Rainbow. The area was previously known as Vallecitos ("little valley") and was renamed Rainbow Valley in the late 1880s after James Peebles Marshall Rainbow, who bought a homestead there.

Bonsall is a census-designated place (CDP) in San Diego County, California. The population was 3,982 at the 2010 census, up from 3,401 at the 2000 census. The Bonsall area was heavily affected by the Lilac Fire in December 2017, which burned 4,100 acres.

Margarita Lookout, also known as Santa Margarita Lookout, is a lookout point in the Santa Margarita Mountains, part of the larger Santa Ana Mountains in San Diego County, California. The original fire lookout tower, built in 1935 by the CCC, was later replaced by a new lookout tower and cabin in 1965. In 1986, the tower and cabin were both burned in a wildfire. In 1988, the burnt tower was destroyed in a collision with a Marine Corps CH-46E helicopter. The lookout tower was badly damaged as a result and was promptly removed. Only a concrete foundation remains today, however the site is still accessible via trail (Margarita Road/Truck Trail). The lookout is approximately one mile north of Margarita Peak, and is located in the Cleveland National Forest.

Jofegan is an abandoned settlement in California. It is named after GeneraI Joseph Fagan, who was a commander at Camp Pendleton. The settlement predates the O'Neill Ranch at the center of the Marine Corps Base Camp Pendleton in San Diego County, California, United States. It is adjacent to an out-of-use railroad to the West of Vandegrift Boulevard, and South of Lake O'Neill.

The Lilac Road Bridge is a reinforced concrete arch bridge in Bonsall, California, built in 1978 at a cost of $1,500,000. Its main span is 455 feet (139 m), with a total length of 745 feet (227 m). It was designed by Fred G. Michaels and John Suwada, with architecture consulting by William Wells. This bridge is one of the two overcrossings in San Diego County with this unique arch design, the other being the Eastgate Mall Bridge. When traveling northbound on I-15 it is the noticeably high bridge before the SR 76 exit.

Rancho Guajome was a 2,219-acre (8.98 km2) Mexican land grant in present-day San Diego County, California given in 1845 by Governor Pío Pico to Andrés and José Manuel, Indians. The name comes from a Luiseño phrase involving the word "frog", likely wakhavumi "frog pond" or waxáawu-may "little frog". The grant was south of San Luis Rey River and Rancho Monserate and north of present-day Vista. The site is now registered as California Historical Landmark #940.