It is part of the Perkinstown terminal moraine, which is discussed in the article on Taylor County.

Because the land would be difficult to farm, much of Grover's land was incorporated into the Chequamegon–Nicolet National Forest, and the town includes five of Taylor County's twelve State Natural Areas: Brush Creek Hemlocks,[3] Perkinstown Hemlocks,[4] Pirus Road Swamp,[5] Richter Lake Hemlocks,[6] and Yellow River Ice-walled Lake Plain.

[7] The two six mile squares that would become Grover were first surveyed in the summer of 1847 by a crew working for the U.S. government.

Then in the winter of 1857 and 1858 another crew marked all the section corners in the township, walking through the woods and over frozen swamps, measuring with chain and compass.

[8][9] When done, the deputy surveyor filed this general description of the six mile square north of Perkinstown: This Township contains numerous small Tamarac and Cedar Swamps.

Timber chiefly Hemlock, Birch, Maple, Pine, Tamarac and Cedar.Yellow River runs through the North West corner of this Township in a South Westerly course.

[11]: 7–8  An 1880 map of the area shows a "winter road" crossing the northwest corner of what would become Grover, roughly following the Yellow River up from Chippewa County.

Jacob Maurer, Henry Richter, Fred Westrich and Joseph Lechner earned their plots by living on them five years and meeting other requirements of the Homestead Act of 1862.

In 1891 the Shaws platted the village of Perkinstown; soon after they started a tannery on the north side of Lake Kathryn, choosing this location because hemlock bark was used for tanning.

[11]: 4, 17, 25, 26–28 A plat map from around 1900 shows the Wisconsin Central Railroad owning more of what would become Grover than anyone else.

By 1900 the Wisconsin Central had sold some of that land to lumber companies, but still held some large chunks.

Other large landholders are Chippewa Lumber and Boom Company in the north and in the south Sawyer and Austin, J.M.