Helen Allison Savanna SNA
About • Location • Activities • Ecology
About |
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National Natural Landmark,
Cedar Creek Natural History Area-Allison Savanna |
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Overview |
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History |
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Management |
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Comments |
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Location |
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Maps |
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Printable Map(s) with GPS coordinates |
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Size |
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85 acres |
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Parking |
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N45 22.874, W93 9.799 |
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Driving Directions |
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Activities |
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Hiking Trails |
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There are no maintained trails. An old access road clear of trees and shrubs (in 2013) leads west from the parking area, along the south boundary of the SNA, to the open prairie on the western quarter of the site. |
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Hunting |
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No hunting |
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Ecology |
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Ecological Classification |
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| Ecological Province | Eastern Broadleaf Forest Province |
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| Ecological Section | Minnesota & NE Iowa Morainal |
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| Ecological Subsection | Anoka Sand Plain |
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| Land Type Association | Anoka Lake Plain |
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Native Plant Communities* |
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Dry Barrens Oak Savanna (Southern): Oak Subtype Oak - Aspen Woodland Sedge Meadow |
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| * Source: The Minnesota Biological Survey, Minnesota Department of Natural Resources, Division of Ecological Resources | |||||||
Natural Features |
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National Landmark
In 1975 Helen Allison Savanna was designated a National Natural Landmark.
Visitor Photos |
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MinnesotaSeasons.com Photos |
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Parking |
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Wood Routed Sign |
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TNC Sign on County Road 26 |
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Old Access Road |
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Sedge Meadow |
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Dry Barrens Oak Savanna (Southern): Oak Subtype |
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Wetland |
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Slideshows |
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| Helen Allison SNA Brett Whaley |
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About
Located in Anoka County, Minnesota. Owned by The Nature Conservancy, leased and co-managed with the MNDNR. |
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Visitor Videos |
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Share your video of this destination. |
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Other Videos |
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| Helen Allison SNA minute and a half relaxation video Much Wilder Me |
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About
Aug 2, 2020 Helen Allison was called the "Grass Lady" because she wrote about the 180 different grasses in Minnesota. 180 ! There are no groomed trails, but you can walk around a bit. I walked in about 50 feet and it felt very relaxing. You can still hear road noise, but it felt very nice. It's a bit windy in the beginning of the video, so keep the sound low! The site includes "oak sand savanna, dry prairie with bur oak and pin oak, thickets of willow and aspen, and sedge marshes in scattered depressions. Trees and shrubs characteristic of a savanna are found here: pin oak, bur oak, American hazelnut, chokecherry, and quaking aspen. Other savanna species include lead plant, smooth sumac, slender willow, steeple bush, aster, and goldenrod. Look on the dunes for pioneer sand plants such as sea-beach needle grass and hairy panic grass. "... among others (quoted description from MN SNA website below) Helen Allison SNA Information: General SNA Information: |
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| The Nature Conservancy Get into Nature! |
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About
Uploaded on Oct 14, 2011 Cub Scouts visit the Conservancy's Helen Allison Savanna - a rare oak savanna and a great place for parents to take their kids to experience nature. |
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_02.jpg "bur oak (var. macrocarpa)")
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