Colorado → Utah · Interstate 70 / Interstate 25
Before turning the key for Salt Lake City, Utah, out of Denver, Colorado, run through the pre-trip checklist: registration card in the glovebox, current insurance card on your phone, working SunPass or E-ZPass transponder for the electronic toll plazas along Interstate 70 / Interstate 25, and a printed backup of the destination address in case GPS reception drops. The locked itinerary measures 704 km (437 miles) with an optimistic estimate of 6h 42m if cruise control sits steadily within the posted limit. Pulling out of Denver, the Mile-High City and economic center of the Rocky Mountain region, the road eventually delivers you to Salt Lake City, the capital of Utah and the gateway to the Wasatch Range and the Great Basin. Schedule departure outside the morning rush window and pack a thermos of coffee to skip an unscheduled stop in the first hundred miles. Budget around $58.88 just for the pump (64 liters / 16.9 gallons of regular unleaded) plus headroom for tolls. Outbound reimbursement at $0.43/km equals $302.72 cleared to the driver. Use the Clara generator the moment you park to wrap everything into a single digitally signed PDF.