Outcrop of metamorphosed rhyodacite (commonly referred to as rhyolite) showing a fresh surface.  Outcrop is present near the top of Morrow Mountain in Morrow Mountain State Park.  Flow banding is visible in lower-center portion of photograph.

Formation or Unit: Morrow Mountain Rhyolite

Sequence: Albemarle sequence

Terrane: Carolina terrane

Outcrop of metamorphosed rhyodacite (commonly referred to as rhyolite) displaying weathered surface and flow banding.  Outcrop is present near the top of Morrow Mountain in Morrow Mountain State Park.

Formation or Unit: Morrow Mountain Rhyolite

Sequence: Albemarle sequence

Terrane: Carolina terrane

Boulder of metamorphosed rhyodacite (commonly referred to as rhyolite) displaying pronounced weathering rind and fresh surface. Flow banding (diagonal lines across boulder fresh surface) visible. 

Formation or Unit: Morrow Mountain Rhyolite

Sequence: Albemarle sequence

Terrane: Carolina terrane

Worked rock chips of rhyodacite (commonly referred to as rhyolite) near the top of Morrow Mountain in Morrow Mountain State Park. 

Archeological research indicates that Native Americans have utilized Morrow Mountain Rhyodacite (rhyolite) for over 10,000 years for making projectile points. 

Additional information concerning the use of Morrow Mountain material by Native Americans: http://www.archaeology.ncdcr.gov/uwharrie/morrowmtn.html

Formation or Unit: Morrow Mountain Rhyolite

Sequence: Albemarle sequence

Terrane: Carolina terrane

Outcrop of metamorphosed argillite (interlayered siltstone and mudstone) of the Tillery Formation. 

Outcrop is present on Quarry Trail in Morrow Mountain State Park.

Formation or Unit: Tillery Formation

Sequence: Albemarle sequence

Terrane: Carolina terrane