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- For information on State Natural Areas, contact:
- Thomas Meyer
Natural areas conservation biologist
Wisconsin State Natural Areas Program Blackjack Springs (No. 308)
Within Chequamegon-Nicolet National Forest, Vilas County. T40N-R11E, Section 1, 2, 3, 10, 11. T41N-R11E, Sections 35, 36. 1,395 acres.
Blackjack Springs is located on pitted sandy outwash south of the Deerskin River and drumlinized ground moraine to the southeast that supports extensive stands of mature, mostly dry-mesic forest on rolling topography. The diverse canopy is composed of red oak, sugar maple, red maple, big-tooth aspen, trembling aspen, paper birch, yellow birch, white pine, hemlock, and balsam fir. Uncommon components of the canopy include red pine and white spruce. Among the trees, sugar maple exhibits the best reproduction and is well represented in both the seedling and sapling class. White pine is reproducing well in some areas. Relatively dense stands of pole-sized timber, especially on the hogback ridge near the north end, are interspersed with well-structured, uneven-age stands of mature timber. Some of the larger pines exceed 30 inches in diameter adding a super canopy stratum to the forest. The understory varies from open park-like expanses in which ground-hugging herbs predominate to dense thickets of shrubs and saplings. Common understory species include ironwood, beaked hazelnut, American fly honeysuckle, red-berried elder, and raspberries. Pennsylvania sedge, big-leaved aster, and wild sarsaparilla dominate the herbaceous layer under deciduous trees and in areas where pine is a significant canopy component characteristic species are barren strawberry, wintergreen, and blueberries. Canada mayflower, wood sorrel, bunchberry, three-leaved gold-thread, and American starflower are more common in rich mesic areas. Blackjack Creek is part of the Deerskin River drainage and flows northeast from its source for 5 miles where it then empties into the Deerskin River. The water is clear, slightly alkaline, and of high fertility. Small inclusions of boreal-like white spruce-balsam fir are present in lowland transitional habitats along Blackjack Creek. The complex also contains several boggy kettle wetlands, groundwater influenced conifer swamps, headwater streams, and several softwater spring ponds. Bird life is diverse and includes ruby-throated hummingbird, yellow-bellied sapsucker, hermit thrust, golden-crowned kinglet, northern parula, blackburnian warbler, pine warbler, ovenbird, scarlet tanager, and purple finch. Unique and uncommon birds include osprey, gray jay, black-backed woodpecker, veery, black-throated blue warbler, and Nashville warbler. Blackjack Springs was originally designated the Pine-Oak Grove State Natural Area in 1996 and later expanded in 2007.
From the intersection of U.S. Highway 45 and State Highway 70 in Eagle River, go east on Highway 70 7.6 miles, then north on Military Road 2.9 miles, then northwest on FR 2178 (Anvil Lake Road) 1.6 miles to an old logging road and a gate on the west side of the road. Walk west on the logging road 0.5-mile to the site.
Blackjack Springs is owned by:
- US Forest Service
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.
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.
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.
- Horseback riding
- Rock climbing
- Vehicles, including bicycles, ATVs, aircraft, and snowmobiles except on trails and roadways designated for their use
- Collecting of animals, non-edible fungi, rocks, minerals, fossils, archaeological artifacts, soil, downed wood, or any other natural material, alive or dead. Collecting for scientific research requires a permit issued by the DNR
- Collecting of plants including seeds, roots or other non-edible parts of herbaceous plants such as wildflowers or grasses
- Camping and campfires
For rules governing state-owned SNAs and other state lands, please consult Chapter NR 45 Wis. Admin. Code [exit DNR]