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Third Watchung Mountain begins with Packanack Mountain, part of the Preakness Range. The Pompton River separates the south end of Pakanack from the beginning of Towakhow Mountain or Hook Mountain , which runs west-northwest and then turns south to form a curve encircling the Great Piece Meadows along the Passaic River, ending near Pine Brook .
First-free-ascents that set new grade milestones are important events in rock climbing history, and are listed below. While sport climbing has dominated absolute- grade milestones since the mid-1980s (i.e. are now the highest grades), milestones for modern traditional climbing, free solo climbing, onsighted, and flashed ascents, are also listed.
Greywacke or graywacke (German grauwacke, signifying a grey, earthy rock) is a variety of sandstone generally characterized by its hardness (6–7 on Mohs scale), dark color, and poorly sorted angular grains of quartz, feldspar, and small rock fragments or sand-size lithic fragments set in a compact, clay-fine matrix.
Slate – Metamorphic rock - A low grade metamorphic rock formed from shale or silts; Suevite – Rock consisting partly of melted material formed during an impact event – A rock formed by partial melting during a meteorite impact; Talc carbonate – A metamorphosed ultramafic rock with talc as an essential constituent; similar to a serpentinite
Conglomerate (/ k ən ˈ ɡ l ɒ m ər ɪ t /) is a sedimentary rock made up of rounded gravel-sized pieces of rock surrounded by finer-grained sediments (such as sand, silt, or clay). The larger fragments within conglomerate are called clasts, while the finer sediment surrounding the clasts is called the matrix.
Argillite (/ ˈ ɑːr dʒ ɪ l aɪ t /) is a fine-grained sedimentary rock composed predominantly of indurated clay particles. Argillaceous rocks are basically lithified muds and oozes. They contain variable amounts of silt-sized particles. The argillites grade into shale when the fissile layering typical of shale is developed