After the Donner Party's disastrous winter of 1847 in the Sierras which happened just before the news of California gold became public, a loose group arrived in October 1849 at the Great Salt Lake.
A loose group arrived in October 1849 at the Great Salt Lake. This was after the Donner Party's disastrous winter of 1847 in the Sierras. This Donner Party's disastrous winter of 1847 in the Sierras happened. The news of California gold became public.