[4] A few hours prior to the landslide, a small avalanche had forced five people to stop a few miles southeast of the town of Hope, British Columbia—150 kilometres (93 mi) east of Vancouver—on a stretch of the Hope-Princeton Highway below Johnson Peak.
The slide buried a 1959 yellow Chevrolet convertible[9] that had become stuck in the first slide, an Arrow Transfer oil tanker truck, and a loaded hay truck that had stopped behind the tanker[5] under a torrent of 47 million cubic metres of pulverized rock, mud, and debris 150 metres (500 ft) deep and 2 kilometres (1.2 mi) wide, which came down the 1,200-metre (4,000 ft) mountainside.
[10] In a short distance, Stephanishin flagged down a Greyhound Canada bus travelling to Vancouver[5] and persuaded the driver, David Hughes, to return with him to Sumallo Lodge.
[12][13] Phil Gaglardi, the British Columbia Minister of Highways, attended the scene and directed the construction of a temporary tote road over the southern portion of the slide.
[9] The landslide was caused by the presence of pre-existing tectonic structures (faults and shear zones) within the southwestern slope of Johnson Ridge.
Though much of the massive scar on the mountain face remains bare rock, vegetation including trees are growing over parts of the slide area.