Stateline, Nevada is on the south shore of Lake Tahoe and abuts the line dividing Nevada from California. This shows the main road through both sides of the state line, featuring the casinos which occupy the Nevada side, where gambling was legal when it was not in California.
The description states:
Partly in Nevada and partly in California. It is a winter and summer playground. The all-weather highway U.S. #50 is the main street, and it all is superbly located on Lake Tahoe.
–There are a large number of visitors in the summer to take advantage of the waters of Lake Tahoe, and also in the winter as there are ski resorts very near by.
The cars visible in this image indicate that the photo dates from the 1960s.