Drummond Island, Michigan.
Sunset at Maxton Plains Preserve Drummond Island, Michigan. © Jason Whalen/Big Foot Media

Places We Protect

Maxton Plains Preserve

Michigan

Alvars are found only along the Baltic Sea in Europe, northern England, northwest Ireland and the Great Lakes.

Why Is This Preserve Significant?

The 1,210-acre Maxton Plains Preserve protects the globally significant alvar landscape and 10 Michigan state rare plants, eight found in the alvars and two found in the forests. The alvars found on Drummond Island are the largest remaining high quality alvars in North America. The Maxton Plains Preserve protects nesting and feeding habitat for the state-threatened osprey and potentially for grassland, forest, and shore birds.

Alvar is a Swedish term used to describe dry grasslands found on limestone pavements. The last glacier receded over 10,000 years ago, leaving no, or only a very thin (up to 10 inches), soil layer over limestone bedrock. Areas of pavement alvar are found in central Maxton. On the pavement alvars, the plants grow only in the bedrock joints where soil and sediment collect.

What Can I See Here?

This habitat contains an extremely rich diversity of flora and fauna and hosts a unique mixture of arctic tundra and Great Plains prairie plant species. Eight Michigan state rare plants grow in the alvars. Among these are the prairie smoke, a spring bloomer, and Houghton’s goldenrod, which bloom just as the prairie grasses turn gold in the late summer sun. Little bluestem grass and prairie dropseed grass also thrive in the sparse soil. This site attracts an array of birds, including such rare and threatened species as the upland sandpiper, osprey, northern harrier, sharp-tailed grouse and as many as 160 other species of birds.

 

Mid-June is the best time to observe the pale-rose blooms of the prairie smoke spread throughout the alvar. In September, the prairie grasses and aspen leaves glow like gold throughout the preserve. We recommend head netting to guard against mosquitoes, black flies, and other insects during the midsummer months. Bring a hat and sunscreen to protect yourself, as the area has little shade.

Alvar is a very delicate natural community. During your visit please respect these simple rules.

  • Keep ORVs and bicycles on the roadways.
  • During the spring and fall rainy seasons, tread lightly on the grasslands.
  • Avoid walking or driving on thin soil pockets; they are easily compacted by foot traffic and tires.
  • Do not collect or take plants, animals (non-game), rocks or other natural objects from alvar grasslands.
  • Leave rocks just as the glacier left them, please; no rock piles or cairns.
  • Remove any trash you may find and please carry out all that you bring in.

The Nature Conservancy allows hunting for white-tail deer on this preserve to reduce an unnaturally high deer population in the area and reduce threats too many deer pose to our conservation targets. All hunters are required to receive a permit from TNC as well as a Michigan deer hunting license. Additionally, hunters must report any deer taken from the preserve.

Permitted Activities:

Prohibited Activities:

  • No Motorized and non-motorized vehicles
  • No Pets
  • No hunting or trapping without a TNC-issued permit
  • No removal of plants or animals (alive or dead)
  • No removal of rocks, water or other non-organic materials
  • No camping, bonfires, fireworks or other fires