Welcome to 3915 Gallatin Avenue in Spearfish, South Dakota, a beautifully updated 5-bedroom, 2-bathroom home offering space, comfort, and convenient access to I-90. The main level features three bedrooms, a full bath, a bright living room filled with natural light, a dedicated dining area with backyard access, and a kitchen with updated appliances. The fully finished basement includes two legal bedrooms, a second living area, a full bathroom, and laundry space providing plenty of room to spread out. Recent updates include new carpet, fresh interior paint, new LVP flooring, updated kitchen appliances, freshly painted siding, and a new roof installed in October 2025. Outside, enjoy updated landscaping, a fenced backyard and an insulated 20x20 attached two-car garage. If you're searching for a move-in ready home in Spearfish, SD with modern updates and room to grow, this one is a must-see! Listed by Melissa Christianson, Engel & Völkers Black Hills 605-863-3707