The Mormon trail crosses several rivers. Probably the most well known would be the Sweetwater River near Martin's Cove in Wyoming.
The Mormon Trail and Oregon Trail share the Platte River in Nebraska. Both trails followed the Platte River valley for a portion of their journeys westward.
Various groups crossing the Mormon trail left from different places. Most left from Missouri or Illinois.
It took 22 days to cross the river on the Oregon trail.
it was imposible for setlers in the old west to cross after rain and an agonizing experience to get the horse across
Montana
Yes. When it was possible, the Mormon trail was on the opposite side of the river from the Oregon and California trails, to avoid any confrontation or argument over use of the trail and supplies (grass, berries, small game) found along the trail.
Nebraska
The first Mormon Pioneer group took 2 years to cross the Mormon trail... this is mostly because there wasn't yet a trail and they didn't really know exactly where they were going. Later groups took several weeks to several months, depending on the number of people, weather, and mode of transportation.
Missouri yellowstone des chutes big horn
none
When she describes dead animals on the trail-APEX
Not too difficult. The wagons crossed at shallow places and they used ferry's to cross deeper waters.