Northern Great Salt Lake and Spring Bay (far northern portion of the lake) are discernible in this south-southeast-looking, low-oblique photograph. The light shoreline surrounding the bay and the lake was submerged from the mid-1980s through the early 1990s because of above-normal precipitation during the 1980s. The lake level is subject to seasonal and yearly variations depending on climatic patterns. East of the lake are the north-south-trending Promontory Mountains, near the base of which is Golden Spike National Historic Site (not discernible), where the Continental Railroad was completed in May 1869.