The site is where the Lucin Cutoff intersects the east coast of the peninsula formed where the Promontory Mountains project into the northern Great Salt Lake.[2] The cutoff passes 1,250 feet (380 m) north of the cape and continues west 6.4 miles (10.3 km) to Saline, where the cutoff leaves the peninsula.[3]
The unincorporated community of Promontory and its location, Promontory Summit, are also frequently referred to as "Promontory Point".[4] Promontory Summit is the site where the First transcontinental railroad was completed and is located about 30 miles (48 km) north–northwest of Promontory Point, near the north end of the Promontory Mountains.
