San Gabriel Peak

Mount Disappointment is a mountain in the San Gabriel Mountains in Los Angeles County, California with a summit elevation of 5,963+ feet (1,818+ m). It was named "Disappointment" in 1894 when USGS surveyors in the Wheeler Survey sighted it from the Santa Susana Mountains, believing it to be the highest point in the immediate area, decided to use it as their next triangulation point. When they reached the summit, however, they discovered that San Gabriel Peak half a mile (0.8 km) to the east was 167 feet (51 m) higher and it was a disappointment so they moved there instead.A Nike missile site was located there in 1955 and the summit was flattened to accommodate it. The missile site was abandoned in 1965. The mountain top is now an important telecommunications site for both commercial and government organizations.

Mount Lowe is a mountain on the southern fold of the San Gabriel Mountains. Originally named Oak Mountain, it was renamed for Professor Thaddeus S.C. Lowe, who is credited for being the first person to set foot on and plant the American flag at its peak, and who built the Mount Lowe Railway to its foot in 1896. The record of the naming was made official by Andrew McNally, the famous Chicago map printer and summertime resident of Altadena, who promised to print "Mount Lowe" on all his maps. Mt. Lowe was established as an alternate route for the Mount Lowe Railway when attempts to procure rights of way to the more prominent Mount Wilson had failed. A number of trails stem from it due to the Mount Lowe Tavern which was built at Crystal Springs below the summit and operated from 1895 to 1936. One of the historic trails was the "Mount Lowe Eight" which was a mule ride attraction of the hotel that made a figure eight shaped route starting at the Tavern, ascending the summit of Mt. Lowe, returning to the Tavern, and crisscrossing to a trail that headed down Castle Canyon. From there the trail passed down to the Echo Mountain resort and ascended on the return to the Tavern. Mount Lowe was the upper terminus of the Alpine Division of the Mount Lowe Railway originally incorporated by Professor Lowe as the Pasadena and Mt. Wilson Railroad Co.Mt. Lowe is approachable from Echo Mountain or Chaney trail via a fire road which was graded over the old railway right-of-way.

Red Box is the name of the junction of the Angeles Crest Highway, the Mt. Wilson-Red Box Road, and the Rincon-Red Box Road. It is located at the 1,422-meter (4,665 ft) saddle between Mount Lawlor and San Gabriel Peak. The saddle separates the upper Arroyo Seco drainage from the West Fork of the San Gabriel River.

KCBS-TV/FM Tower (formerly the KNXT/KNX-FM Tower) is a 296.4 meter (972 ft) high guyed radio/television tower on Mount Wilson above Los Angeles (near the Mount Wilson Observatory) at 123 CBS Lane. The KCBS-TV/FM Tower was built in 1986. It was owned by CBS Corporation and used by KCBS-TV (Channel 2) and KCBS-FM (93.1 MHz, 27,500 watts). When the DTV conversion was planned the CBS transmitters (both of them) were installed in the Channel 9 building and combined onto one antenna. The guyed tower facility, the westernmost on Mount Wilson, was sold in November 2009 to Richland Towers whose headquarters is in Tampa, Florida. However, as part of the spectrum auction repack, KCBS-TV moved back to the tower.

KDOC-TV (channel 56) is a religious television station licensed to Anaheim, California, United States, serving the Los Angeles area as an owned-and-operated station of Tri-State Christian Television (TCT). The station maintains studios on East First Street in Santa Ana, and its transmitter is located atop Mount Wilson.

The Sam Merrill Trail is a major hiking trail in the Las Flores Canyon of the San Gabriel Mountain Range north of Altadena, California, which leads to the top of Echo Mountain. It was built by Charles Warner and the Forest Conservation Club of Pasadena during the 1930s. After the deluge of 1938 most of the trails that accessed the mountain sides around Echo Mountain and the Mount Lowe Railway had been all but washed away. Sam Merrill found it important to maintain public hiking access to the railway ruins and other portions of the treacherous foothill. During the 1940s he overhauled and maintained the trail. As a young man Merrill had lived with John Muir for a summer, which inspired a lifetime commitment to the outdoors and the Sierra Club. Merrill, who served as Clerk of the Superior Court of Los Angeles, was an active volunteer in the Sierra Club, leading outings for almost twenty years, serving on the Executive Committee of the Angeles Chapter from 1926 to 1935 and on the National Board of Directors of the Sierra Club from 1936 to 1937. When Sam Merrill died in 1948 the Sierra Club named the Echo Mountain Trail after him. The trail originated at the old railway's right of way just above a point called Hygeia Station and climbed by switchback up the steep face of the Echo promontory. In the late 1960s a housing development was established over the trail, and the trailhead was moved to an access alongside the Cobb Estate gateway at the top of Lake Avenue. The portion of the trail which was maintained by Merrill leads an approximate 21⁄2-mile trip directly to Echo Mountain and the ruins of the White City of the Mount Lowe Railway. It is also sometimes referred to as Lower Sam Merrill Trail because a section of the Mount Lowe 8, an old mule trail from the days of the Mount Lowe Tavern, was reopened, giving a continued hike into Grand Canyon and the site of the Tavern, and is referred to as Upper Sam Merrill Trail. In 1996 the national USA Today newspaper published a list of "10 Great North American Hikes", which included the Sam Merrill Trail as one of them. The list had originally appeared in the October 1996 issue of Men's Fitness magazine.

KPWR (105.9 FM) – branded as Power 106 – is a commercial radio station in Los Angeles, California, broadcasting to the Greater Los Angeles area. KPWR is owned and operated by Alex Meruelo's Meruelo Group, through licensee KPWR Radio Holdings LLC, and airs a Rhythmic Hot AC format. KPWR's studios are based in the Los Angeles suburb of Burbank, and the transmitter is on Mount Wilson, shared with KCAL-TV and KRTH. Meruelo acquired KPWR from Emmis Communications for $82.75 million in May 2017, officially bringing the station under common ownership with KDAY, KDEY-FM, KWHY-TV, and KBEH on August 1, 2017.

KHJ-TV/FM Tower (now known as KCAL-TV/KRTH Tower) is a 141.4-metre (464 ft) high self-supporting radio/television tower on Mount Wilson above Los Angeles, California, near the Mount Wilson Observatory. The KHJ-TV/FM Tower was built in 1983. It is owned by CBS Corporation and used by KCAL-TV (digital channel 9, 25,000 watts), KRTH (101.1 MHz, 51,000 watts), and KPWR (105.9 MHz, 25,000 watts).

KFTR-DT (channel 46) is a television station licensed to Ontario, California, United States, serving the Los Angeles area as the western flagship station of the Spanish-language UniMás network. It is owned and operated by TelevisaUnivision alongside Univision station KMEX-DT (channel 34). Both stations share studios on Center Drive (near I-405) in Westchester, while KFTR-DT's transmitter is located atop Mount Wilson. KFTR does not air any local newscasts of its own; however, the station does cross-promote sister station KMEX's local news programs.

KLOS (95.5 FM, "95-5 KLOS") is a commercial radio station that is licensed to Los Angeles, California, and serves the Greater Los Angeles area. The station is owned by Meruelo Media. KLOS airs a mainstream rock radio format and has broadcast rock music in some form since 1969. The studios are on West Olive Avenue in Burbank. The transmitter is atop Mount Wilson. The station is rebroadcast on FM translator K255BZ in China Lake, California. KLOS broadcasts using HD Radio technology. The KLOS morning drive time show, Heidi & Frank, is featured on the nationally syndicated television program Dish Nation and is rebroadcast around the clock on KLOS-HD2. The HD3 digital subchannel carries SoCal Armenian which plays Armenian music.

KBIG (104.3 FM, 104.3 MYfm) is a commercial radio station that is licensed to Los Angeles, California and serves the Greater Los Angeles area. The station is owned by iHeartMedia and broadcasts a hot adult contemporary format heavy on music from the 1990s to the present day. KBIG has studios located in Burbank, California and its primary transmitter is based on Mount Wilson.

KABC-TV (channel 7) is a television station in Los Angeles, California, United States, serving as the West Coast flagship of the ABC network. Owned and operated by the network's ABC Owned Television Stations division, the station maintains studios in the Grand Central Business Centre of Glendale, and its transmitter is located on Mount Wilson.