On two occasions while waiting for real houses we parked the trailer at Canyon Glen in Provo Canyon. There was a railroad bridge that teenagers jumped off of, my mother fished from, and a train regularly crossed. I was in a state of anxiety while my mother fished. The constant sounds of rushing water, the canyon breeze blowing through the trees, and trucks using their Jake Brakes* as they descended the canyon are powerful memories. There were no showers but there was a small trading post that sold Necco wafers and rubber erasers (the erasers tasted better).
I dusted off my artistic license and doubled the height of the actual bridge It still doesn't match my childhood recollection.
*The Jacobs Engine Brake (also known as the "Jake Brake®") is a
diesel engine retarder that uses the engine to aid in slowing and
controlling the vehicle. When activated, the engine brake alters the
operation of the engine's exhaust valves so that the engine works as a
power-absorbing air compressor. This provides a retarding, or slowing,
action to the vehicle's drive wheels, enabling you to have improved
vehicle control without using the service brakes. This conservation
results in reduced service brake maintenance, shorter trip times, and
lower total cost of ownership.
This conservation also results in the thunderous BOOGADUH-BOOGADUH-BOOGADUH sound that echoed off the canyon walls. It's because of Jake Brakes you will often see signs posted at the edge of a town advising that noise ordinances are enforced or that engine or compression brakes are prohibited.
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