Interstate 15 is one of the major Interstate Highways in the western United States, starting in San Diego and going all the way to Alberta, Canada. A few notable states I-15 passes through include California, Nevada, Arizona, Utah, Idaho, and Montana. I-15 will also take you through some major (and majorly awesome) cities like San Diego, Las Vegas, Salt Lake City and Butte. Built to connect America's "Inland Empire" with San Diego County, located along the Mexican Border, I-15 helps fuel tourism from California to Vegas and connects Idaho Falls and Great Falls. There's loads to do along this 1700+ mile route, so here are a few highlights.
2328 Shannon Avenue, San Pablo, California, United States
Next up: The Berkely Acid Pit. It might seem a little strange to make a road trip stop at an acid pit, but when else will you get to pose for a picture near a pool of acid? This superfund site, which was once an open pit copper mine, has an observation deck and gift shop. Too weird!
2707 Mt. Rushmo0re Rd. Rapid City, SD 57701, Rapid City, SD, US
Nearby is Cedar Breaks National Monument, where there's a natural red rock amphitheater filled with strange hoodoos and gnarled bristlecone pines, all visible from multiple vistas. It's absolutely enchanting!
A trip along I-15 just wouldn't be complete without visiting Zion National Park. There are almost countless reasons to make the journey out to this incredible National Park. The Subway hike, Angels Landing trail, the Weeping Rock, and tons of other hikes and features can be found inside this one-of-a-kind park.
The best time of year to road trip along I-15: Since I-15 passes through so many states, it's difficult to predict the weather through all the states at any given time of year. Especially in Montana, road conditions change frequently, though road closures are particularly rare. Winter can get quite snowy, but summers are high tourist season, so prices will be higher for lodging. Likewise, Utah is an incredibly popular road trip destination during summer and early fall, particularly around Zion National Park. From San Diego to Vegas, Sunday is the busiest travel day of the week, so plan accordingly.
