Trillium and blue phlox are just two of the flowers on display at Nan Weston Nature Preserve in the spring.
Flowers at Nan Weston Nature Preserve Trillium and blue phlox are just two of the flowers on display at Nan Weston Nature Preserve in the spring. © Michael D-L Jordan/dlp

Places We Protect

Nan Weston Nature Preserve at Sharon Hollow

Michigan

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Enhance your next visit to the Nan Weston Preserve with the new Sharon Hollow Audio Tour!

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Why Is This Preserve Significant?

This preserve lies in the Upper River Raisin Watershed, an area highly altered by agriculture, logging and development. The Nan Weston Nature Preserve serves to protect many remaining natural communities, stopover habitat for migrating birds and the river itself, which winds approximately 25 miles to the Conservancy’s 700-acre Ives Road Fen preserve before continuing on to Lake Erie.

Sharon Hollow is a dynamic preserve, featuring more than 260 species of wildflowers and other native plants. From the symphony of toads and frogs during spring, to the rain of yellow beech leaves in the fall, visitors will find year-round spectacles to enjoy. In the wet spring months, visitors can see vernal pools, which are temporary pools of water that provide habitat for insects, snakes and amphibians.

What Can You See Here?

As you hike the trails through floodplain forest and wooded wetlands toward the bank of the River Raisin, look for a vast array of wildflowers and other native plants. Beginning in mid-spring, woodland plants come to life, including bright blue hepatica, Dutchman’s breeches, spring beauty, southern blue flag iris, squirrel corn, starflower, bloodroot and large-flowered trillium covering the forest floor. You may also catch a glimpse of the red-backed salamander or the eastern newt, most commonly found near vernal pools in cavities of rocks or overturned logs.

Also, keep an eye on the treetops and sky. Nan Weston Nature Preserve serves as stopover habitat for migrating birds as they travel through the Great Lakes flyway and provides nesting sites for several warblers and other birds, including the yellow warbler, rose-breasted grosbeak, barred owl and pileated woodpecker.

In the spring, be prepared for wet, muddy trails by wearing waterproof boots. Be advised that hazardous trees may be present along the trail due to destruction of ash trees caused by emerald ash borer.

The Nature Conservancy allows bow 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 the Conservancy as well as a Michigan deer hunting license. Additionally, hunters must report any deer taken from the preserve.

Trail Map

Permitted activities:

  • Hiking
  • Photography
  • Wildlife observation
  • Geocaching

Prohibited Activities:

  • No building of new trails
  • No pets
  • No removal of trees, plants or animals (alive or dead)
  • No removal of rocks, water or other non-organic materials
  • No camping, bonfires, fireworks or other fires
  • No firewood collecting
  • No littering
  • No motorized and non-motorized vehicles, including bicycles
  • No hunting or trapping without a Conservancy permit
  • No trespassing on adjacent land
Spotlight on Nature: Nan Weston Preserve at Sharon Hollow
Nan Weston Nature Preserve at Sharon Hollow
Nan Weston Preserve Branding Sign Want to get out of the house? A day hike at the Nan Weston Preserve at Sharon Hollow is a great way to get out and experience the natural wonders of southeast Michigan. © Michael D-L Jordan/dlp
Trail markers guide hikers through wetlands and upland forest to the banks of the River Raisin at the Nan Weston Nature Preserve at Sharon Hollow.
Trail Markers at Nan Weston Preserve Lace up your hiking boots and choose your trails at Sharon Hollow. © Jason Whalen
Hikers follow the trails of the Nan Weston Nature Preserve through ?oodplain forest and wooded wetlands towards the bank of the River Raisin.
Forested Trail at the Nan Weston Preserve A dry upland trail at Sharon Hollow. © Jason Whalen
These beautiful spring ephemerals bloom early but aren’t around for long.
Trillium: In the spring, hikers will witness forests carpeted with Michigan wildflowers such as trillium. © Clint Farlinger
Blue Flag Iris colors the landscape at Maxton Plains Preserve on Drummond Island.
Blue Flag Iris in Field In the summer months, other plants like the wild blue flag iris are in bloom. © Jason Whalen
A milfoil weevil crawls along a wild Blue Flag Iris.
Milfoil weevil Milfoil weevil on a wild blue flag iris. © Jason Whalen
Wood Frog at Nan Weston Preserve
Wood Frog at Nan Weston Preserve Don’t forget to look down to see the cast of characters at the preserve. © Jason Whalen
Ebony Jewel-wing Damselfly
Ebony Jewel-wing Damselfly on Leaf Come to witness the dramas in nature at Sharon Hollow, like the predator-prey relationship between damselflies and mosquitoes. © Jason Whalen
Sunlight streams through the forest canopy at Nan Weston Nature Preserve at Sharon Hollow.
Nan Weston Preserve Tree Canopy Every year, saplings compete for space and sunlight to become the next forest giant. © Jason Whalen
A tributary of the River Raisin meanders through the Nan Weston Nature Preserve at Sharon Hollow.
Nan Weston Preserve Stream The hiking trails at Sharon Hollow are crisscrossed with tributaries of the River Raisin. © Jason Whalen
Arrow arum grows along the banks of the River Raisin, adjacent to the Nan Weston Nature Preserve at Sharon Hollow.
Arrow Arum at Nan Weston Preserve Your hike will lead you to the banks of the River Raisin, home to 84 species of fish, 216 aquatic insects and 21 freshwater mussel species. © Jason Whalen
The ecologically rich River Raisin runs alongside the Nan Weston Nature Preserve at Sharon Hollow.
River Raisin at Nan Weston Nature Preserve The waters of the River Raisin ultimately end in Lake Erie and serve as a lifeblood for the communities settled around it. © Jason Whalen
× Nan Weston Nature Preserve at Sharon Hollow
× Trail markers guide hikers through wetlands and upland forest to the banks of the River Raisin at the Nan Weston Nature Preserve at Sharon Hollow.
× Hikers follow the trails of the Nan Weston Nature Preserve through ?oodplain forest and wooded wetlands towards the bank of the River Raisin.
× These beautiful spring ephemerals bloom early but aren’t around for long.
× Blue Flag Iris colors the landscape at Maxton Plains Preserve on Drummond Island.
× A milfoil weevil crawls along a wild Blue Flag Iris.
× Wood Frog at Nan Weston Preserve
× Ebony Jewel-wing Damselfly
× Sunlight streams through the forest canopy at Nan Weston Nature Preserve at Sharon Hollow.
× A tributary of the River Raisin meanders through the Nan Weston Nature Preserve at Sharon Hollow.
× Arrow arum grows along the banks of the River Raisin, adjacent to the Nan Weston Nature Preserve at Sharon Hollow.
× The ecologically rich River Raisin runs alongside the Nan Weston Nature Preserve at Sharon Hollow.