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Jocassee Gorges: Temperate rain forests of the Blue Ridge
A Carolina Environmental Diversity Explorations “virtual field trip” that explores the geology and botanical diversity of the Jocassee Gorges region of North Carolina's mountains.
Format: slideshow (multiple pages)
Rain and the forest
In Jocassee Gorges: Temperate rain forests of the Blue Ridge, page 5
The source of the water that cascades down the gorges is shown in Figure 2. This photograph was taken in mid-afternoon on an August day and shows thunderheads boiling up on the south side of the Blue Ridge at the head of the gorges. It rained within an hour...
By Dirk Frankenberg and Stephanie Walters.
How were the Jocassee Gorges formed?
In Jocassee Gorges: Temperate rain forests of the Blue Ridge, page 2
Basically, erosion formed the Jocassee Gorges. For most of its length, the eastern continental divide, which separates land that drains to the Atlantic Ocean from land that drains to the Gulf of Mexico, runs northeast to southwest parallel to the Blue Ridge...
By Dirk Frankenberg and Stephanie Walters.
Spray zone community
In Jocassee Gorges: Temperate rain forests of the Blue Ridge, page 15
On the sides of the waterfall the spray community becomes more diverse than the algae that grows at the bottom. These communities are perpetually wet but are less exposed to the destructive torrents that crash down the falls in periods of extreme high water....
By Dirk Frankenberg and Stephanie Walters.
North Carolina's rain forest
In Jocassee Gorges: Temperate rain forests of the Blue Ridge, page 1
The Blue Ridge escarpment is the steep slope that separates North Carolina's mountains from its Piedmont plateau. The escarpment trends north and east across the state from South Carolina to Virginia. In many places it is steep enough to rise over 1,500 feet...
By Dirk Frankenberg and Stephanie Walters.
The spray zone
In Jocassee Gorges: Temperate rain forests of the Blue Ridge, page 13
One of the unique features of the Jocassee Gorges region is the plant community that flourishes in the spray zone around the base of the waterfalls. Figure 10 shows visible evidence of the spray that sustains these unusual communities. If you look closely...
By Dirk Frankenberg and Stephanie Walters.
Granite cliffs at Whiteside Mountain
In Jocassee Gorges: Temperate rain forests of the Blue Ridge, page 6
Figure 3 shows the topography that concentrates and elevates air currents from the south as they reach the Blue Ridge escarpment. This is a photograph taken from Whiteside Mountain showing the granite cliffs that are its most striking feature as well as the...
By Dirk Frankenberg and Stephanie Walters.
Types of Plant Communities Found in Jocassee Gorges: Wetland Bogs
Types of Plant Communities Found in Jocassee Gorges: Wetland Bogs
Format: image/photograph
Jocassee Gorges
Jocassee Gorges
Format: image/photograph
Why are there so many rare plants in Jocassee Gorges?
In Jocassee Gorges: Temperate rain forests of the Blue Ridge, page 3
The topography of Jocassee Gorges is responsible for the incredible rainfall the area receives, and thus is also ultimately responsible for the many rare and endemic plants of the region. The shape of the gorges causes the rising air, thunderheads, and rainfall...
By Dirk Frankenberg and Stephanie Walters.
Diverse species
In Jocassee Gorges: Temperate rain forests of the Blue Ridge, page 10
The forests of the high slopes are mixed mesophytic forests found on creek and river slopes. Those found below 2,500 feet in open areas are characterized by a greater richness of species than is found in any other vegetation type in the region. This richness...
By Dirk Frankenberg and Stephanie Walters.
Channeling air from the south
In Jocassee Gorges: Temperate rain forests of the Blue Ridge, page 7
A comparable ridge on the east is shown in Figure 4. The two sides of the bowl contain the northward flowing air and force it to rise up over the highlands represented by Whiteside Mountain and other peaks along the Blue Ridge.
By Dirk Frankenberg and Stephanie Walters.
The bottom of the falls
In Jocassee Gorges: Temperate rain forests of the Blue Ridge, page 16
As one moves further back from the falls, the spray community becomes even more diverse as grasses and broad-leafed plants find suitable habitats among the boulders and downed trees at the bottom of the waterfalls.
By Dirk Frankenberg and Stephanie Walters.
Rain and the Forest
Rain and the Forest
Format: image/photograph
Rainbow Falls
In Jocassee Gorges: Temperate rain forests of the Blue Ridge, page 12
With Figure 9 we reach our destination, the river and falls that are the most striking geographic feature of the gorge region. This is the Horsepasture River with its Rainbow Falls, which drops over 100 feet in the single cascade shown here. Two other smaller...
By Dirk Frankenberg and Stephanie Walters.
Spray Zone Community
Spray Zone Community
Format: image/photograph
Algae
In Jocassee Gorges: Temperate rain forests of the Blue Ridge, page 14
The rocks closest to the base of the falls get the heaviest spray. These rocks remain wet at all times and therefore make excellent places for the growth of attached algae. The green patches on the rocks shown in Figure 11 are algae. There are most obvious...
By Dirk Frankenberg and Stephanie Walters.
Spray Zone Community
Spray Zone Community
Format: image/photograph
Slope forest
In Jocassee Gorges: Temperate rain forests of the Blue Ridge, page 17
Finally, the spray community gives way to the forests that dominate the slopes above it. A typical slope forest is shown in Figure 15 behind Turtleback Falls, one of the two cascades above Rainbow Falls. Turtleback Falls is a favorite cascade sliding spot....
By Dirk Frankenberg and Stephanie Walters.
Plant Communities cont. -Highlands Plateau: The Upper Slopes Forest
Plant Communities cont. -Highlands Plateau: The Upper Slopes Forest
Format: image/photograph