Lacawac Hiking Trails
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  • Maurice Broun Trail
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    • Gypsy Moth Caterpillars
    • Oak Trees >
      • White Oak
      • Red Oak
      • Black Oak
    • Raccoons
    • Owls
    • Snakes >
      • Snake ID
    • Bats >
      • Bat Houses
  • Lake Lacawac Trail
    • White Pine
    • Eastern Hemlock
    • Bog Plants >
      • Sphagnum Moss
      • Blueberry Bushes
      • Pickerelweed
    • Lake Lacawac
    • Glacial Bog
    • Diversity of Birds
    • Glacial Erratic Rock
    • American Black Bear >
      • Diet
      • Population
      • Reproduction
  • Big Lake Trail
    • Food Web
    • North American Beaver
    • Osprey
    • Watershed
    • Japanese Barberry >
      • Characteristics
      • Threat to Forest
      • Control Methods
    • Minerals & Rocks >
      • Minerals
      • Igneous Rocks
      • Sedimentary Rocks
      • Metamorphic Rocks
      • Identification
    • Sugar Maple
    • Streams
    • Hydroelectric Dam
    • Lake Wallenpaupack >
      • Electricity Generation
      • Recreation
      • Watershed Management
    • Wild Grapevines
    • Hayscented Fern
  • Carriage-Lakefront Trails
    • Phytoplankton
    • Harmful Algal Blooms
    • Riparian Zones
    • Bioindicators
    • Lake Macroinvertebrates
    • Lake Succession >
      • Oligotrophic Lake
      • Mesotrophic Lake
      • Eutrophic Lake
    • Lake Formation
    • Amphibians
    • Native Fish
    • Lake Research
    • Aquatic Plants
    • Zooplankton
    • Stratification
    • Lake Hydrology
    • Lake Chemistry
    • Monitoring for Preservation
    • Local Research with Global Implications
  • Historic Great Camp Trail
    • Connell Park
    • Sustainable Forestry
    • Hemlock Woolly Adelgid
    • Early Years
    • Field Station
  • Ledges Trail
    • Deer Exclosures
    • Geological Faults >
      • Normal Fault
      • Reverse Fault
      • Strike-slip Fault
    • Wild Orchids
    • Ledges
    • Ferns
    • Mosses & Lichen
    • Vernal Pools
    • Mushrooms
  • Watres Trail
    • Edge Effect
    • Hummocks and Hollows
  • Visitors Center
    • Native Plant Garden >
      • Golden Alexander
      • Black-Eyed Susan
      • Striped Cream Violet
      • Scarlet Beebalm
      • Blazing Star
      • Blue Moon
      • Blue Flag Iris
      • Tickseed
      • Coneflower
      • Butterfly Weed
      • Jerusalem Artichoke
      • Monkshood
      • Joe-Pye Weed
      • Mayapple
      • Blue Wood Sedge
      • Little Blue Stem
    • Bees
    • Weather Station
  • Partner Ridge Trail
  • Warbler Trail

Lake Lacawac

 “The Southernmost unpolluted glacial lake in North America” 

Lake Lacawac was formed about 13,000 years ago, at the end of the last ice age, when the Wisconsinan glacier carved a crater in the red Catskill sandstone and as the climate warmed, melting ice created a scour lake. It is currently 52 acres in size, about a third smaller than its original size.

At its deepest point it is now 43 feet in depth; almost half its original depth. The lake is accumulating layers of organic dead plant material and sediment deposited over the years.

The lake is shaped like a half moon and has two distinct habitats. The prevailing wind pattern from the northwest causes continuous wave action that breaks down sandstone and washes away plant material from the eastern and southern shores leaving them sandy and barren. The north and west shores are a bog area caused by years of fallen trees and deteriorating plant matter. 


Picture

Location

About lacawac sanctuary

Lacawac Sanctuary Field Station and Environmental Education Center is an independent, non-profit, environmental education organization located on the shore of Lake Wallenp​aupack in the Northern Poconos.  We operate solely on program fees, memberships, sponsorships, grants and private donations from people like you

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  • Home
  • About
    • Sources
    • Contact Us
  • Maurice Broun Trail
    • Fields & Meadows
    • Stone Walls
    • Gypsy Moth Caterpillars
    • Oak Trees >
      • White Oak
      • Red Oak
      • Black Oak
    • Raccoons
    • Owls
    • Snakes >
      • Snake ID
    • Bats >
      • Bat Houses
  • Lake Lacawac Trail
    • White Pine
    • Eastern Hemlock
    • Bog Plants >
      • Sphagnum Moss
      • Blueberry Bushes
      • Pickerelweed
    • Lake Lacawac
    • Glacial Bog
    • Diversity of Birds
    • Glacial Erratic Rock
    • American Black Bear >
      • Diet
      • Population
      • Reproduction
  • Big Lake Trail
    • Food Web
    • North American Beaver
    • Osprey
    • Watershed
    • Japanese Barberry >
      • Characteristics
      • Threat to Forest
      • Control Methods
    • Minerals & Rocks >
      • Minerals
      • Igneous Rocks
      • Sedimentary Rocks
      • Metamorphic Rocks
      • Identification
    • Sugar Maple
    • Streams
    • Hydroelectric Dam
    • Lake Wallenpaupack >
      • Electricity Generation
      • Recreation
      • Watershed Management
    • Wild Grapevines
    • Hayscented Fern
  • Carriage-Lakefront Trails
    • Phytoplankton
    • Harmful Algal Blooms
    • Riparian Zones
    • Bioindicators
    • Lake Macroinvertebrates
    • Lake Succession >
      • Oligotrophic Lake
      • Mesotrophic Lake
      • Eutrophic Lake
    • Lake Formation
    • Amphibians
    • Native Fish
    • Lake Research
    • Aquatic Plants
    • Zooplankton
    • Stratification
    • Lake Hydrology
    • Lake Chemistry
    • Monitoring for Preservation
    • Local Research with Global Implications
  • Historic Great Camp Trail
    • Connell Park
    • Sustainable Forestry
    • Hemlock Woolly Adelgid
    • Early Years
    • Field Station
  • Ledges Trail
    • Deer Exclosures
    • Geological Faults >
      • Normal Fault
      • Reverse Fault
      • Strike-slip Fault
    • Wild Orchids
    • Ledges
    • Ferns
    • Mosses & Lichen
    • Vernal Pools
    • Mushrooms
  • Watres Trail
    • Edge Effect
    • Hummocks and Hollows
  • Visitors Center
    • Native Plant Garden >
      • Golden Alexander
      • Black-Eyed Susan
      • Striped Cream Violet
      • Scarlet Beebalm
      • Blazing Star
      • Blue Moon
      • Blue Flag Iris
      • Tickseed
      • Coneflower
      • Butterfly Weed
      • Jerusalem Artichoke
      • Monkshood
      • Joe-Pye Weed
      • Mayapple
      • Blue Wood Sedge
      • Little Blue Stem
    • Bees
    • Weather Station
  • Partner Ridge Trail
  • Warbler Trail