Seven Tubs Natural Area
Encyclopedia
The Seven Tubs Natural Area is a publicly accessible recreation area located in Luzerne County, Pennsylvania
Luzerne County, Pennsylvania
- Demographics :As of the 2010 census, the county was 90.7% White, 3.4% Black or African American, 0.2% Native American, 1.0% Asian, 3.3% were of some other race, and 1.5% were two or more races. 6.7% of the population was of Hispanic or Latino ancestry...

, and owned by the Luzerne County parks and recreation department. Continuously flowing glacial meltwater gouged a line of smooth tubs in gritty sandstone
Sandstone
Sandstone is a sedimentary rock composed mainly of sand-sized minerals or rock grains.Most sandstone is composed of quartz and/or feldspar because these are the most common minerals in the Earth's crust. Like sand, sandstone may be any colour, but the most common colours are tan, brown, yellow,...

 over 12,000 years ago. The tubs are potholes formed by the flowing water. The site is part of a 527 acres (2.1 km²) nature area in the Pennsylvania mountains about four miles (6 km) south of downtown Wilkes-Barre
Wilkes-Barre, Pennsylvania
Wilkes-Barre is a city in the U.S. state of Pennsylvania, the county seat of Luzerne County. It is at the center of the Wyoming Valley area and is one of the principal cities in the Scranton/Wilkes-Barre metropolitan area, which had a population of 563,631 as of the 2010 Census...

. The site is popular among hikers for its easy accessibility and beginner-level hiking environment.

Natural history

The glaciers of the Ice Age
Ice age
An ice age or, more precisely, glacial age, is a generic geological period of long-term reduction in the temperature of the Earth's surface and atmosphere, resulting in the presence or expansion of continental ice sheets, polar ice sheets and alpine glaciers...

 were instrumental in shaping the physical features of the natural world that we see today. They too are responsible for the formations of the tubs. As water melts over long periods of time, its eroding capabilities become much more substantial. Glacial melting produced large volumes of flowing water for many years, contributing to formations in the different types of rock common to the area. Common geological rock classifications in the area are limestone
Limestone
Limestone is a sedimentary rock composed largely of the minerals calcite and aragonite, which are different crystal forms of calcium carbonate . Many limestones are composed from skeletal fragments of marine organisms such as coral or foraminifera....

, shale
Shale
Shale is a fine-grained, clastic sedimentary rock composed of mud that is a mix of flakes of clay minerals and tiny fragments of other minerals, especially quartz and calcite. The ratio of clay to other minerals is variable. Shale is characterized by breaks along thin laminae or parallel layering...

, and coal
Coal
Coal is a combustible black or brownish-black sedimentary rock usually occurring in rock strata in layers or veins called coal beds or coal seams. The harder forms, such as anthracite coal, can be regarded as metamorphic rock because of later exposure to elevated temperature and pressure...

, but the tubs are formed mainly out of gritty sandstone.

Wheelbarrow Run is a stream that runs through the tubs and eventually meets up with the larger Laurel Run. Both flows have cut gorges and canyons out of the surrounding landscapes that have created an opportunity for hikers to explore. This area is known as Whirlpool Valley.

Trees

There is a multitude of categories of foliage in the area. The trees in the area vary greatly and are fairly dense in vegetation. The vegetation surrounding the tubs includes hemlock
Tsuga
Tsuga is a genus of conifers in the family Pinaceae. The common name hemlock is derived from a perceived similarity in the smell of its crushed foliage to that of the unrelated plant poison hemlock....

 and yellow, grey, and black birch
Birch
Birch is a tree or shrub of the genus Betula , in the family Betulaceae, closely related to the beech/oak family, Fagaceae. The Betula genus contains 30–60 known taxa...

 trees, as well as white and red chestnuts. Bear Oaks are a common sight among the foliage as well as the tulip tree, red and striped maples, big-tooth and quaking aspens, american sycamore
American sycamore
Platanus occidentalis, also known as American Sycamore, American plane, Occidental plane, and Buttonwood, is one of the species of Platanus native to North America...

, american beech, white ash, slippery elm, sassafras, white gum, witch hazel, flowering dogwood, staghorn sumac
Sumac
Sumac is any one of approximately 250 species of flowering plants in the genus Rhus and related genera, in the family Anacardiaceae. Sumacs grow in subtropical and temperate regions throughout the world, especially in Africa and North America....

, as well as white, red, and pitch pines
Pine
Pines are trees in the genus Pinus ,in the family Pinaceae. They make up the monotypic subfamily Pinoideae. There are about 115 species of pine, although different authorities accept between 105 and 125 species.-Etymology:...

.

Flora

Wildflowers are a common site among the foliage around the tubs and the surrounding forests. The northeast is home to many different types of wildflower and the tubs is no exception.

"About 60 kinds of wildflowers have been observed, including pearly everlasting (Anaphalis margaritacea), wild lettuce (Prenanthes alba), jack-in-the-pulpit (Arisaema triphyllum), closed gentian (Gentiana andrewsii), pink lady’s slipper (Cypripedium acaule), self-heal (Prunella vulgaris), small round-leaved orchis (Orchisrotundifolia), and harebell (Campanula rotundifolia). Trailing arbutus (Epigaea repens), mountain laurel (Kalmia latifolia), sheep laurel (Kalmia angustifolia), and blueberry
Blueberry
Blueberries are flowering plants of the genus Vaccinium with dark-blue berries and are perennial...

 also thrive here."

Birds

Bird-watchers can gain a glimpse of many species of birds through a visitation of the tubs. The tubs offer a possibility to view some of the birds that are becoming a rarity in the northeast region of the state. Depending on the seasonality of the birds in the area and the time at which hikers and visitors experience the tubs, different bird types can be viewed and observed. Common to the area are the whippoorwill and saw-whet owl, both of which are becoming scarce across much of their normal habitat. Also, the barred owl
Barred Owl
The Barred Owl is a large typical owl. It goes by many other names, including eight hooter, rain owl, wood owl, and striped owl, but is probably best known as the hoot owl.-Description:...

, rufous-sided towhee, yellow-shafted flicker, brown thrasher
Brown Thrasher
The Brown Thrasher , sometimes erroneously called the Brown Thrush, is a bird in the Mimidae family, a group that also includes the New World catbirds and mockingbirds.-Description:...

, and eastern wood pewee can be seen here. Game birds are frequent to the area as well and include wild turkey and ruffed grouse
Ruffed Grouse
The Ruffed Grouse is a medium-sized grouse occurring in forests from the Appalachian Mountains across Canada to Alaska. It is non-migratory.The Ruffed Grouse is frequently referred to as a "partridge"...

.

Mammals

Not only does the tubs provide a wide array of foliage and flora, many mammalian species can be observed in their natural habitats. A diverse spectrum of animal size can be observed, some to be taken more seriously than others. Deer
Deer
Deer are the ruminant mammals forming the family Cervidae. Species in the Cervidae family include white-tailed deer, elk, moose, red deer, reindeer, fallow deer, roe deer and chital. Male deer of all species and female reindeer grow and shed new antlers each year...

, long-tailed weasel
Long-tailed Weasel
The long-tailed weasel , also known as the bridled weasel or big stoat is a species of mustelid distributed from southern Canada throughout all the United States and Mexico, southward through all of Central America and into northern South America.-Evolution:The long-tailed weasel is the product of...

, red and gray foxes, opossum, and brown bat
Brown bat
Brown bat refers to any species of bat belonging to either of the following genera:* Myotis, see Little brown bat or* Eptesicus or Big Brown Bats...

 are all creatures that may be encountered through a visit to the tubs. Perhaps of most concern is the possible encounter of a black bear
American black bear
The American black bear is a medium-sized bear native to North America. It is the continent's smallest and most common bear species. Black bears are omnivores, with their diets varying greatly depending on season and location. They typically live in largely forested areas, but do leave forests in...

. Black bears can seem like docile creatures and are the smallest of the three types of bears in the northeast section of the country; however they should be heeded with great caution. Bear sightings are not extremely frequent, but they do reside in the area. If confronted by a black bear, it is highly recommended to “speak calmly and back away slowly”.

What to expect

Certain elements of the path are wheelchair accessible and stairs are used in a few select locations to aid in descending the terrain. Also, the shade brought about by the foliage as well as the coolness of the water and its flow, all contribute to a drop in temperature in close proximity to the tubs. Be wary of loose rocks and slippery moss
Moss
Mosses are small, soft plants that are typically 1–10 cm tall, though some species are much larger. They commonly grow close together in clumps or mats in damp or shady locations. They do not have flowers or seeds, and their simple leaves cover the thin wiry stems...

, for they have a tendency to cause loose footing. There are not many signs that warn of these dangers, so be cautious in hiking the intricacies of the tubs.

Nearby attractions

There are many state parks around the northeast part of Pennsylvania. Closest in proximity to the tubs are Archbald Pothole
Archbald Pothole State Park
Archbald Pothole State Park is a Pennsylvania state park in Archbald, Lackawanna County, Pennsylvania in the United States. The focal point of the park is Archbald Pothole. The pothole is a remnant of the Wisconsin Glacial Period, deep with a largest diameter of by . It has drawn tourists since...

, Ricketts Glenn
Ricketts Glen State Park
Ricketts Glen State Park is a Pennsylvania state park on in Columbia, Luzerne, and Sullivan counties in Pennsylvania in the United States. Ricketts Glen is a National Natural Landmark known for its old-growth forest and 24 named waterfalls along Kitchen Creek, which flows down the Allegheny...

, Frances Slocum
Frances Slocum State Park
Frances Slocum State Park is a Pennsylvania state park in Kingston Township, Luzerne County, Pennsylvania, in the United States. Frances Slocum Lake is a man-made, horseshoe-shaped lake that is a popular fishing and boating destination...

, Tobyhanna
Tobyhanna State Park
Tobyhanna State Park is a Pennsylvania state park on mostly in Coolbaugh Township, Monroe County, with a small portion of the park in Dreher and Lehigh townships in Wayne County, all in Pennsylvania in the United States. The park includes the Tobyhanna Lake and a portion of Tobyhanna Creek...

, and Gouldsboro
Gouldsboro State Park
Gouldsboro State Park is a Pennsylvania state park in Coolbaugh Township, Monroe County and Lehigh Township, Wayne County, Pennsylvania in the United States. The park includes the Gouldsboro Lake. Gouldsboro State Park is located very close to Tobyhanna State Park and Pennsylvania State Game...

parks. Although many of the parks of the northeast Pennsylvania region have similar overall characteristics, each also has individual features that can provide a different nature experience.
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