to Campbelltown Road at St Andrews (opened August 1973) and St Andrews-Camden Road (opened December 1974) joining the southern section from Yerrinbool to Aylmerton (opened May 1977). This became the official route of Hume Highway and National Highway 31 in the mid-1980s. The former highway from Camden south to Aylmerton is now called Remembrance Drive. It climbs southwards from Camden, goes through the Razorback Ridge to Picton, and then climbs to Tahmoor and Bargo. It reaches the Southern Tablelands and rejoins the present Hume Highway at Aylmerton, 6 km north of Mittagong. An alternative route to the highway runs from Aylmerton through Mittagong and Bowral to join Illawarra Highway at Moss Vale and then follows Illawarra Highway through Sutton Forest to rejoin Hume Highway at Hoddles Crossroads (named after Surveyor Robert Hoddle who also laid out the Melbourne CBD). Mittagong Mittagong lies south-west of Sydney, just off Hume Highway at the edge of the Southern Tablelands. Mittagong is also a part of the Southern Highlands region. It is notable for being the location of Australia's first ironworks. Mittagong's streets are lined with various species of deciduous trees and it has a busy town centre. Until August 1992 when the Mittagong bypass was opened, the town was dominated by trucks and in winter it was also busy with skiers' traffic on the way to the Australian Alps. Today, Hume Highway bypasses Mittagong and all the towns of the Southern Tablelands. In the late 1990s, engineers detected subsidence under part of the bypass where it runs along a steep slope near the Nattai River. This was caused by features of the local geology, and mining activity at the adjacent Mount Alexandra coalmine from the 1950s to the 1970s. The problem was remedied by closing one carriageway at a time and building a pair of 'land bridges' across the unstable section of the slope. Moss Vale Moss Vale has several beautiful old and attractive buildings and Leighton Gardens, in the centre of the main street, is a pleasant park. It is best during spring when its flowers are in blossom or in autumn when the leaves of its exotic deciduous trees are changing colour. Sutton Forest is surrounded by farms, vineyards and is home to elegant country homes and estates. It has a church, an inn, a couple of restaurants and one or two specialty shops. Berrima Berrima has flourished since it was