Blue Creek is a small stream that crosses Golden Spike Drive just outside the entrance to Golden Spike NHS. Further south the creek meets several springs and forms a wetland habitat which is completely surrounded by farms, grasslands and shrubsteppe. Blue Creek can be birded from the road, but I am not sure about access to the springs further to the south--there do appear to be some roads off of Promontory Road leading into the area, but I assume this is all private property. The hot spot is the 2 mile stretch of road from UT-83 to the slight right into the historic site towards the Big Fill--and it can extend as far north or south as you can see or access from here I suppose.
I just submitted the first checklist for this location and wanted to get it on the map. Being that it is the only water source in this tiny depression/valley it seemed worth being a stop on the way into or out of Golden Spike NHS. Given the habitat many of the birds you are likely to see here, you will also see in the park, but since it is a water source, there will likely be a few other notables here. RED-WINGED BLACKBIRD were busy singing when I visited, and AMERICAN ROBIN were calling from the sagebrush here. WESTERN MEADOWLARK are common, while other species you should expect to encounter year round include: HORNED LARK, COMMON RAVEN, RED-TAILED HAWK, and probably MALLARD. Please take a moment while in the area to submit a list here to help build out this location--it has likely been birded many times before, but the species lists were just included in the Golden Spike NHS location.
From I-15 exit 365 head west on UT-13 for 2.5 miles to Corinne. Continue straight onto UT-83 for another 17.4 miles. Turn left following signs onto 7200 North/Golden Spike Drive. The road and this hot spot continues for 2 miles before entering Golden Spike NHS. Blue Creek is 1.1 miles from the turn off of UT-83.