Which rivers and mountain ranges did settlers have to cross when following the santa fe trail and the old spanish trail to california?

Rivers: Colorado river, Mojave river, Green River, Sevier River.

Mountains Range: San Bernardino and San Gabriel Mountains.  

Explanation:

The old Spanish trail was one of the historical trade routes that connected the Santa Fe to California. The trail crosses the mountains, rivers, canyons, deserts. The trail route was used by the Spanish explorers in the late 16th century, for the trade, trappers and different purposes. It was Antonio Armijo in 1829, founded the trail.

consider an orange peel: if you want to try and lay it flat, you have to stretch it, we know exactly how things are being stretched or squashed at any given point. we have many different map projections because each has different patterns of some projections can even preserve certain features of the earth without