Summer tourists from San Francisco still visited Russian River vacation spots via joint narrow-gauge/standard-gauge NWP "triangle" excursions until 1927 when automobile travel became more popular. Standard-gauging of the southern end of the line from San Francisco Bay to Point Reyes Station at the head of Tomales Bay was completed on 5 April 1920. Freight service between Point Reyes Station and Occidental was reduced to thrice weekly with freight transfer at Point Reyes Station. Lumber production from the lower Russian River valley was ended by a wildfire on 17 September 1923. After the standard-gauge line was extended to Cazadero, service north of Point Reyes was reduced to a daily (except Sunday) mixed train to Camp Meeker and return until the last narrow-gauge train ran on 29 March 1930; and the remaining narrow-gauge line between Monte Rio and Point Reyes Station was dismantled that autumn. The route of the dual-gauge line from Fulton to Duncan Mills later became the popular River Road connecting all the towns from the coast to the central county.