# otd transcontinentalrailroad transcontinental150

How do scientists simulate a snowmelt? ❄️(Well, they probably don't work on the scale of Utah's Uinta Mountains!) 3/5
https://t.co/oDkFSseQrt

0 0
2020-03-27

in 1869, the eastbound and westbound railroad tracks met at Utah's Promontory Summit, marking the completion of the This engraving was created from a photograph that captured the historic moment. https://t.co/XoGikH8ukb

12 28
2019-05-11