There are a few things to keep in mind, however, such as not leaving your pet unattended in the room and making sure to pick up after them. The good news is that Little River Casino is indeed pet friendly! leashed dogs are welcome in the resort, and there are even pet-friendly rooms available for those who want to stay the night. The casino resort is a popular destination for visitors and locals alike, and many people wonder if they can bring their furry friends along for the fun. Assuming you would like an article discussing whether Little River Casino is pet friendly: Little River Casino is located in Manistee, Michigan, on the shores of Lake Michigan.