Lake Hattie Reservoir is a 3,000-acre lake located in southeastern Wyoming near Laramie. The reservoir features over 8 miles of shoreline, much of which is accessible for bank fishing. A public boat launch ramp is located in the southeast section of the lake, off County Road 45 at the south end of the dam. The two-lane concrete ramp includes a dock and gravel parking area.

The lake is open year-round, including for ice fishing in winter, though roads may not be plowed. Paddlers can expect calm, expansive waters ideal for kayaking, canoeing, and stand-up paddleboarding. The reservoir's pristine waters and scenic surroundings create a tranquil paddling experience.

Lake Hattie is home to several fish species including rainbow trout, cutthroat trout, brown trout, lake trout, yellow perch, and kokanee salmon. Wildlife viewing opportunities may be available from the water. No developed campsites exist, but some primitive camping spots are open around the lake.

Amenities are limited - there is no marina, boat rental, RV hookups, lodging, convenience store, or bait shop on site. The nearest restaurants are located off-site. Paddlers should come prepared with all necessary equipment and supplies.

Motor boating is permitted on Lake Hattie. Paddlers should be aware of potential boat traffic and take appropriate safety precautions. As with all Wyoming waters, thoroughly clean and dry all watercraft between uses to prevent the spread of invasive species.

The lake's relatively high elevation and Wyoming's variable weather patterns mean conditions can change quickly. Paddlers should check forecasts, particularly for wind, and have a plan to get off the water quickly if needed. Wearing a personal flotation device is strongly recommended.