Abstract The Portuguese Bend landslide complex occupies a 2.5 mi2 (6 km2) amphitheater-shaped topographic embayment on the south flank of the palos verdes peninsula,22 mi(35km) south of the los angeles civic center in southern california.One-third of the complex consists of the active portuguese bend and flying Triangle landslides and the recently active Abalone Cove and Klondike Canyon landslides (Fig.1). The complex is in the northwest corner of the San Pedro, California, 7 1/2-minute Topo-graphic Quadrangle and adjoining partsof the Torrance and Redondo Beach 7 1/2-minute quadrangles. As part of the greater Los Angeles metropolitanarea, the Portuguese Bend area is easily reached by automobile or by rapid transit District (RTD)buses. The most direct route from the los angeles civic center is south on the Harbor Freeway (1–110) to its terminous at gaffey street in san pendro.Continue south on Gaffey Street for 1.7 mi (2.8 km), turn right on 25th Street and go 2.8 mi (4.5 km) west to where 25th Street merges with Pales Verdes Drive South (PVDS). The east edge of the Portuguese Bend landslide is 1.5 mi (2.4 km) farther west on PVDS. The area can also be approached from the north by way of Crenshaw and Hawthorne Boulevards (Fig.1).An excellent overview of thearea is obtained from the ridge crest on the south side of Del Cerro Park, located near the southern terminous of Crenshaw Boulevard (Fig.1). Hiking and riding trails and unpaved roads are present within undeveloped parts of the complex, but most of this area is private land and much of the area is within gated communities where entry requiresspecial permission. The only public land is the beacharea seaward of PVDS and west of Inspiration Point (Fig.1). Public parking along PVDS is restricted to a lot on the south side of PVDS, 0.1 mi (0.2 km) west of Wayfarers Chapel (Fig.1) and costs $3.00 per day. Geologists wishing current information on the landslides or assistance in gaining access to the area should contact Tom Bandy, Community Services Director, City of Rancho Pales Verdes, 30940 Hawthorne Boulevard, Rancho Pales Verdes, CA 90274; telephone (213) 377–0360. Mr. Bandy is also the Executive Director of the Abalone Cove Landslide Abatement District and the Klondike Canyon Geologic Hazard Abatement District.

Abstract Mac Canyon is located on the northwestern flank of the Pilot Mountains, approximately 3.6 mi (6 km) east of Mina, in west-central Nevada. Mina is situated on U.S. Highway 95 approximately 33 mi (50 km) southeast of Hawthorne and about 76 mi (120 km) northwest of Tonopah. Mac Canyon is accessible by a good gravel road that leaves the southeastern quadrant of the Mina townsite (Fig. 1). The road ends at an old mine dump (suitable for parking) approximately 0.15 mi (0.25 km) south of the mouth of the canyon. A fair trail leads north along the range-front fault of the Pilot Mountains and is an easy walk to the canyon mouth. Some problem may be encountered in locating the appropriate road from Mina to the northwestern flank of the Pilot Mountains, because it is not marked. If local directions are sought, ask for the road to Water or Spearmint Canyon (site of the town water supply). Location of the town airstrip and use of the accompanying copy of parts of the Mina and Sodaville quadrangles should be sufficient direction. It is important to note that some of the roads indicated on the map have moved since publication of the quadrangle maps. Roads are good and passenger cars can be used. It is doubtful that buses could negotiate the road to the parking site, but they probably could approach to within about 2.4 mi (4 km) of the trail head.