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For information on State Natural Areas, contact:
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Wisconsin State Natural Areas Program Yellow River Ice-walled Lake Plain (No. 467)

Yellow River Ice-walled Lake Plain

Photo by Aaron Carlson


Overview

Location

Within the Chequamegon-Nicolet National Forest. Taylor County. T32N-R2W, Sections 16-21. 722 acres.

Description

Description

Yellow River Ice-walled Lake Plain features a fairly large and relatively undisturbed ice-walled lake plain that is probably unmatched in species richness for this landform anywhere else on the Chequamegon-Nicolet National Forest. Ice-walled lake plains are common on the end moraine of the Chippewa Lobe, which marks the farthest advance of ice during the last part of the Wisconsinin Glaciation. However, because of their comparatively flat surfaces and fertile boulder-free soils within an otherwise rugged end moraine, most ice-walled lake plains have long since been converted to agriculture while most similar sites within the Forest boundary have been highly used for timber production. This one supports a rich mesic hardwood forest that supports a species composition more typical of a southern mesic forest with sugar maple and basswood dominating the canopy. Associates include white ash, red oak, bitternut hickory, and butternut. The understory is fairly open and shrub layer poorly developed. The ground flora includes an outstanding display of spring ephemeral wildflowers and is exceptionally rich with species including squirrel corn, toothwort, false rue-anemone, dog-tooth violet, Virginia water-leaf, sharp-lobed hepatica, bloodroot, rosy twisted stalk, Goldie's fern, and bulblet bladder fern. Rare plants include glade fern (Diplazium pycnocarpon), white ground cherry (Leucophysalis grandiflora), broad beech fern (Phegopteris hexagonoptera) and the state-endangered little goblin fern (Botrychium mormo). Other high ranking communities include a rich, mixed swamp hardwood forest which has developed on a perched wetland found on the somewhat poorly drained interior of the lake plain. This swamp forest is drained by several well developed erosion channels which served at the original outlet when the surrounding glacial ice melted away. Linked to the site by a typical wet black ash swamp along a riparian drainage, is a representative stand of good quality hemlock hardwood forest characteristic of the original forest which historically dominated extensive areas of the end moraine. The forest is composed of large hemlock, yellow birch, and sugar maple. Characteristic herbaceous species are Canada mayflower, yellow bluebead lily, mountain wood sorrel, three-leaved goldthread, American starflower, partridgeberry, bunchberry, and numerous ferns. Super-canopy white pine are present. The ice-walled lake plain drains to both the north and south by a rather striking dendritically-patterned erosion channels with steep sides and depths up to 25 feet below the surface of the plain. Many fern species thrive in the moist, shady microclimate of these ravines and hemlock is frequent on the steep slopes. Rare birds include cerulean warbler (Dendroica cerulea) and black-throated blue warbler (D. caerulescens). Other resident birds include ovenbird, red-eyed vireo, wood thrush, least flycatcher, and scarlet tanager. Yellow River Ice-walled Lake Plain is owned by the US Forest Service and was designated a State Natural Area in 2007.

Access

Driving directions

From Perkinstown, go north on County M 2.1 miles, then continue north on FR 112 0.9 mile, then west on FR 575 (Sheep Ranch Road) 1.5 miles into the site. The site lies on both sides of the road. For more information visit, the US Forest Service's Celebrating Wildflowers [exit DNR] website.

Ownership

Yellow River Ice-walled Lake Plain is owned by:

  • US Forest Service

Maps

The DNR's state natural areas program is comprised of lands owned by the state, private conservation organizations, municipalities, other governmental agencies, educational institutions and private individuals. While the majority of SNAs are open to the public, access may vary according to individual ownership policies. Public use restrictions may apply due to public safety, or to protect endangered or threatened species or unique natural features. Lands may be temporarily closed due to specific management activities. Users are encouraged to contact the landowner for more specific details.

The data shown on these maps have been obtained from various sources, and are of varying age, reliability, and resolution. The data may contain errors or omissions and should not be interpreted as a legal representation of legal ownership boundaries.

Recreation

Very few State Natural Areas have public facilities, but nearly all are open for a variety of recreational activities as indicated below. Generally, there are no picnic areas, restrooms, or other developments. Parking lots or designated parking areas are noted on individual SNA pages and maps. Trails, if present, are typically undesignated footpaths. If a developed trail is present, it will normally be noted on the SNA map and/or under the "Access" tab. A compass and topographic map or a GPS unit are useful tools for exploring larger, isolated SNAs.

Non-DNR lands

Hunting and trapping

This is a non-DNR owned SNA: Opportunities for hunting and trapping depend on the land owner. Please contact them directly to find out about their rules for hunting and trapping. You can find a link to other owner websites under the "Resource links" heading above. More details regarding allowable uses of this non-DNR owned SNA may be posted, if available, under the "Access" tab above.

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Other activities

Other allowable activities such as - but not limited to camping, geocaching and bicycling are determined by the landowner. Please contact them directly or visit their websites for details.

Last revised: Thursday, October 19, 2017