The area surrounding Kiser Lake State Park is a gift of the ice age. 2 natural phenomena caused by the glaciers helped shape the region into its present form. The gently, rolling wooded hills were caused by glacial deposits in the form of end moraines when the ice edge remained stationary for a period of time, creating a linear ridge along the ice front. One such moraine called the Farmersville surrounds the lake on 3 sides, creating a hummocky elevation through the area. Moraine deposits contain boulders, some weighing many tons, carried from as far away as Canada. These boulders, called erratics, are a familiar sight at Kiser.

Another geologic feature at Kiser Lake State Park is the kame field at the southeast end of the lake. Kames are mounds of sand and gravel that are formed by meltwater flowing across glacial ice. The wetlands at Kiser are in the form of fen and wet meadow habitat. These areas were formed when blocks of ice broke away from the glacier and became covered by sand and gravel. As the climate warmed, the ice melted and left a depression filled with water surrounded by glacial deposits. These areas are filled with many intriguing plants including pitcher plant, sundew, tamarack and spruce.

• Take a hike: 4 hiking trails are located within the park and provide 4.5 scenic miles of walking pleasure. The North Bay Trail follows the lake shoreline for 1.5 miles.
• Visit the Kiser Lake Wetlands Nature Preserve. These areas are remnants of a 300-acre fen known as Mosquito Lake Bog which was created by the last glacier invading Ohio. Access is by written permission only from the chief of the ODNR Division of Natural Areas and Preserves.