In 1858, the U.S. Army was sent to Utah to quell the Mormon Rebellion and enforce laws prohibiting polygamy. A Mormon militia dammed the creek with a rock wall at the Narrows, and built other fortifications to deter the soldiers. Luckily, they were never needed, but the stone relics can still be seen.
Railroad & Pony Express
Pony Express riders carried the mail on the Mormon Trail down Echo Canyon to Echo, Henefer, and Salt Lake City for 18 months starting in 1860. The cost for a 10 word message from Salt Lake City to New York City was $5 (equivalent to $85 today). It was abandoned when the transcontinental telegraph was finished in the fall of 1861. Eight years later the transcontinental railroad reached the Weber Canyon on its way to a meeting with the Central Pacific on Promontory Point near the Great Salt Lake.
Wahsatch is an abandoned railroad division point for crew and engine changes. Hundreds of workers lived on the treeless divide at the head of Echo Canyon during the railroad construction of 1868 and 1869.
Named for the surrounding castle-like sandstone cliffs, Castle Rock was a Pony Express and stage station. Attracted by the hope of trading with travelers through the canyon, a number of families homesteaded the land and began a town. The active though small community soon boasted a railroad depot, section house for railroad workers, gas station, store, water windmill, and schoolhouse. Hanging Rock, in Emory, is another abandoned Pony Express Station.