Grandma's Postcards
Highway Across Boulder Dam, Connecting Nevada and Arizona
The curved crest of Boulder Dam forms a highway and footbridge across Black Canyon, wide enough for two lanes of moving traffic and two parking lanes, with sidewalks on each side of the roadway.  The Dam is a connecting link in the highway between Boulder City, Nevada and Kingman, Arizona, wich will soon be one of the heaviest-travelled transcontinental highways in the United States.