 Poison ivy on bark of a tree, in Delaware and Raritan Canal State Park, near Harrison Street crossing. Princeton, New Jersey, May 1, 2007
 A sprout of poison ivy on a tree, in Delaware and Raritan Canal State Park, near Harrison Street crossing. Princeton, New Jersey, May 2, 2007
 Millstone aqueduct and a footbridge in Delaware and Raritan Canal State Park near Harrison Street crossing. Princeton, New Jersey, April 20, 2007
 A path in Delaware and Raritan Canal State Park, near Washington Road bridge. Princeton, New Jersey, May 3, 2007
 Delaware and Raritan Canal State Park east from Washington Road. Princeton, New Jersey, March 13, 2007
 A bud of a tree, with Delaware and Raritan Canal in background, near Harrison Street crossing. Princeton, New Jersey, May 1, 2007
 Sprouting poison ivy, in Delaware and Raritan Canal State Park, near Washington Road bridge. Princeton, New Jersey, May 3, 2007
 Poison ivy in Delaware and Raritan Canal State Park, near Harrison Street crossing. Princeton, New Jersey, May 1, 2007
 Poison ivy in Delaware and Raritan Canal State Park, near Harrison Street crossing. Princeton, New Jersey, May 1, 2007
 Poison ivy, in Delaware and Raritan Canal State Park, near Harrison Street crossing. Princeton, New Jersey, May 1, 2007
 A maple branch on a path in Delaware and Raritan Canal State Park, near Washington Road bridge. Princeton, New Jersey, May 3, 2007
 A sprout of poison ivy, in Delaware and Raritan Canal State Park, near Harrison Street crossing. Princeton, New Jersey, May 1, 2007
 Offshoot of poison ivy, in Delaware and Raritan Canal State Park, near Harrison Street crossing. Princeton, New Jersey, May 1, 2007
 Leaves of poison ivy, in Delaware and Raritan Canal State Park, near Harrison Street crossing. Princeton, New Jersey, May 1, 2007
 Poison ivy with budding flowers, in Delaware and Raritan Canal State Park, near Harrison Street crossing. Princeton, New Jersey, May 1, 2007
 Nodding waxy flower of May apple (mandrake, Podophyllum peltatum) in Delaware and Raritan Canal State Park, near Washington Road bridge. Princeton, New Jersey, May 3, 2007
 Flooding of a trail in Delaware and Raritan Canal State Park, view from Road 27 crossing to the north. Kingston, New Jersey, April 16, 2007
 A towpath after heavy rains in Delaware and Raritan Canal State Park south from Road 518 crossing. Rocky Hill, New Jersey, April 19, 2007
 Poison ivy with background of Delaware and Raritan Canal, near Harrison Street crossing. Princeton, New Jersey, May 1, 2007
 Sprouting poison ivy on a tree, in Delaware and Raritan Canal State Park, near Carnegie Lake. Princeton, New Jersey, May 2, 2007
 Delaware and Raritan Canal towpath near Lake Carnegie, west from Washington Road. Princeton, New Jersey, March 2, 2007
 Young leaves of poison ivy on a tree, in Delaware and Raritan Canal State Park, near Carnegie Lake. Princeton, New Jersey, May 2, 2007
 A sprout of a creeping plant on a tree, in Delaware and Raritan Canal State Park, near Carnegie Lake. Princeton, New Jersey, May 2, 2007
 A cottage at Faculty Road on Lake Carnegie, view from Delaware and Raritan Canal State Park. Princeton, New Jersey, May 5, 2007
 A trail in Delaware and Raritan Canal State Park. Princeton, New Jersey, March 23, 2007
 A towpath in Delaware and Raritan Canal State Park. Princeton, New Jersey, February 21, 2007
 A towpath near Lake Carnegie, in Delaware and Raritan Canal State Park. Princeton, New Jersey, May 5, 2007
 A grotto in Delaware and Raritan Canal State Park between Kingston and Princeton. New Jersey, March 28, 2007
 Sprouting poison ivy, in Delaware and Raritan Canal State Park, near Carnegie Lake. Princeton, New Jersey, May 5, 2007
 Emerging poison ivy, in Delaware and Raritan Canal State Park, near Carnegie Lake. Princeton, New Jersey, May 2, 2007
 Buds of maples, in Delaware and Raritan Canal State Park, near Carnegie Lake. Princeton, New Jersey, May 5, 2007
 A cottage on Lake Carnegie, view from Delaware and Raritan Canal State Park. Princeton, New Jersey, May 5, 2007
 Delaware and Raritan Canal State Park east from Harrison Street. Princeton, New Jersey, March 13, 2007
 Poison ivy shooting over Lake Carnegie, in Delaware and Raritan Canal State Park. Princeton, New Jersey, May 5, 2007
 A path between Lake Carnegie and Delaware and Raritan Canal. Princeton, New Jersey, April 9, 2007
 Flooding in Delaware and Raritan Canal State Park, near Road 27. Kingston, New Jersey, April 16, 2007
 Multicolored sprout of poison ivy in Delaware and Raritan Canal State Park near Carnegie Lake. Princeton, New Jersey, May 8, 2007
 Emerging leaves of poison ivy, in Delaware and Raritan Canal State Park, near Carnegie Lake. Princeton, New Jersey, May 2, 2007
 Red and yellow sprout of poison ivy in Delaware and Raritan Canal State Park near Carnegie Lake. Princeton, New Jersey, May 8, 2007
 Red and yellow leaves of poison ivy in Delaware and Raritan Canal State Park near Carnegie Lake. Princeton, New Jersey, May 8, 2007
 Young leaf of poison ivy in Delaware and Raritan Canal State Park near Carnegie Lake. Princeton, New Jersey, May 8, 2007
 Sweet gum fruits in snow on a trail in Delaware and Raritan Canal State Park. Princeton, New Jersey, February 20, 2007
 Colored offshoots of poison ivy in Delaware and Raritan Canal State Park near Carnegie Lake. Princeton, New Jersey, May 8, 2007
 Young leaves of poison ivy, in Delaware and Raritan Canal State Park, near Carnegie Lake. Princeton, New Jersey, May 5, 2007
 Poison ivy with budding flowers, in Delaware and Raritan Canal State Park, near Carnegie Lake. Princeton, New Jersey, May 5, 2007
 Colored young leaves of poison ivy in Delaware and Raritan Canal State Park near Carnegie Lake. Princeton, New Jersey, May 8, 2007
 Emerging young leaves of poison ivy, in Delaware and Raritan Canal State Park, near Carnegie Lake. Princeton, New Jersey, May 2, 2007
 A grotto in Delaware and Raritan Canal State Park west from Mapleton Road. Kingston, New Jersey, April 20, 2007
 A towpath of Delaware and Raritan Canal State Park west from Mapleton Road. Kingston, New Jersey, April 20, 2007
 Flooding of Millstone River bridge in Delaware and Raritan Canal State Park, near Road 27. Kingston, New Jersey, April 16, 2007
 A road in Delaware and Raritan Canal State Park. Kingston, New Jersey, May 7, 2007
 A road in Delaware and Raritan Canal State Park, north from Griggstown. New Jersey, May 11, 2007
 Poison ivy on a bark of a tree in Delaware and Raritan Canal State Park. Kingston, New Jersey, May 7, 2007
 Delaware and Raritan Canal towpath near Lake Carnegie. Princeton, New Jersey, March 2, 2007
 Delaware and Raritan Canal near Institute for Advanced Study. Princeton, New Jersey, February 27, 2007
 Delaware and Raritan Canal towpath near Lake Carnegie, at evening. Princeton, New Jersey, March 2, 2007
 Carnegie Lake near Faculty Road, view from Delaware and Raritan Canal State Park. Kingston, New Jersey, May 5, 2007
 Delaware and Raritan Canal near Institute for Advanced Study golf course, view from a bridge. Princeton, New Jersey, February 27, 2007
 A spillway in Delaware and Raritan Canal State Park, north from Carnegie Lake. Kingston, New Jersey, April 16, 2007
 A boat in a forest near a trail of Delaware and Raritan Canal State Park north from Kingston. New Jersey, April 19, 2007
 Flooding in Delaware and Raritan Canal State Park, north from Carnegie Lake. Kingston, New Jersey, April 16, 2007
 A marker of a tunnel under Route 27 to towpath in Delaware and Raritan Canal State Park. Kingston, New Jersey, April 16, 2007
 A canada goose on eggs near a trail near Carnegie Lake in Delaware and Raritan Canal State Park. Kingston, New Jersey, April 18, 2007
 A path in Delaware and Raritan Canal State Park. Kingston, New Jersey, May 7, 2007
 A towpath of Delaware and Raritan Canal State Park, near Griggstown. New Jersey, May 11, 2007
 Canada goose nest with eggs on a trail near Carnegie Lake in Delaware and Raritan Canal State Park. Kingston, New Jersey, April 18, 2007
 A canada goose (zoomed) nesting on a trail near Carnegie Lake in Delaware and Raritan Canal State Park. Kingston, New Jersey, April 18, 2007
 A trail in Delaware and Raritan Canal State Park. Kingston, New Jersey, March 28, 2007
 Spillway in Delaware and Raritan Canal State Park. Kingston, New Jersey, February 10, 2007
 Milestone 15/29 in Delaware and Raritan Canal State Park, north from Griggstown. New Jersey, May 11, 2007
 A path in Delaware and Raritan Canal State Park. North from Kingston, New Jersey, May 7, 2007
 A towpath in Delaware and Raritan Canal State Park north from Kingston. New Jersey, February 24, 2007
 Snowy trail in Delaware and Raritan Canal State Park. Kingston, New Jersey, February 21, 2007
 Tracks on a trail of Delaware and Raritan Canal State Park. Kingston, New Jersey, February 26, 2007
 A path in Delaware and Raritan Canal State Park, near Carnegie Lake. Kingston, New Jersey, May 4, 2007
 A towpath near Carnegie Lake, in Delaware and Raritan Canal State Park. Kingston, New Jersey, May 10, 2007
 Snow on a towpath in Delaware and Raritan Canal State Park. Kingston, New Jersey, February 21, 2007
 A trail in Delaware and Raritan Canal State Park north from Kingston. New Jersey, February 24, 2007
 Poison Ivy in Delaware and Raritan Canal State Park, near Carnegie Lake. Kingston, New Jersey, May 4, 2007
 A path in Delaware and Raritan Canal State Park, with a milestone in foreground. North from Kingston, New Jersey, May 7, 2007
 A mill near Carnegie Lake, view from a dam in Delaware and Raritan Canal State Park. Kingston, New Jersey, May 10, 2007
 A mill, view from a dam in Delaware and Raritan Canal State Park, near Carnegie Lake. Kingston, New Jersey, May 4, 2007
 Emerging poison ivy, in Delaware and Raritan Canal State Park, near Carnegie Lake. Kingston, New Jersey, May 4, 2007
 Bird s tracks on a towpath of Delaware and Raritan Canal State Park. Kingston, New Jersey, February 26, 2007
 Greenery on a towpath of Delaware and Raritan Canal State Park, near Carnegie Lake. Kingston, New Jersey, May 10, 2007
 Buds of skunk cabbage in Delaware and Raritan Canal State Park. Kingston, New Jersey, March 23, 2007
 Flowers of skunk cabbage in Delaware and Raritan Canal State Park. Kingston, New Jersey, March 27, 2007
 A towpath of Delaware and Raritan Canal north from Kingston. New Jersey, April 2, 2007
 Canada goose on a towpath in Delaware and Raritan Canal State Park near Carnegie Lake. Kingston, New Jersey, May 10, 2007
 A family walking on a towpath of Delaware and Raritan Canal State Park, near Carnegie Lake. Kingston, New Jersey, May 10, 2007
 A frozen Lake Carnegie, view from Delaware and Raritan Canal State Park. Kingston, New Jersey, February 10, 2007
 A path between Millstone River and Delaware and Raritan Canal in fog. Kingston, New Jersey, April 2, 2007
 A spare part of Kingston Lock in bushes in Delaware and Raritan Canal State Park. Kingston, New Jersey, March 28, 2007
 Towpath of Delaware and Raritan Canal near Kingston. New Jersey, March 8, 2007
 Towpath of Delaware and Raritan Canal north from Kingston, New Jersey. March 22, 2007
 A flowering bush and poison ivy over Delaware and Raritan Canal, near Carnegie Lake. Kingston, New Jersey, May 10, 2007
 Young leaves of poison ivy over Delaware and Raritan Canal, near Carnegie Lake. Kingston, New Jersey, May 10, 2007
 Fresh maple leaves near gage station in Delaware and Raritan State Park. Kingston, New Jersey, April 27, 2007
 A row of blooming saucer magnolia trees on Scudder Plaza near Frick Lab in Princeton University. Princeton, New Jersey, April 9, 2007
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