The Humboldt was the one water route west across the Great Basin's grain, so some 21,000 people and 50,000 animals crowded along it in 1849 alone. The trail worsened the farther emigrants went, ending at the Forty Mile Desert, where a 1850 count found 1,061 dead mules and 953 graves. The episode argues the horror is hydrology, and weighs diaries against the Paiute record.
Emigrant numbers cannot be reconciled into one year-by-year table. Sarah Winnemucca's claim that a specific party burned Paiute seed is her testimony, and popular accounts of Paiute raiding are wrong in both directions.