Haas Lake Park RV Campground Map A printed version of this map is available in our Park Office & General Store. Contact us at 248-437-0900 for campsite availability. Questions? We'd love to hear from you: CLICK HERE Haas Lake Park RV Campground 248-437-0900 25800 Haas Rd, New Hudson, MI 48165 Website and Photography Produced by Will Heine at Media Majik, LLC. You have reached the end of the Haas Lake Park home page. To start over, click this haaslakepark.com .