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G-Hawk Courtyard Boulders

Carefully enter through the gate and “harvest” a specimen or two from the rock garden. The garden is replenished often with new specimens of rocks, minerals, and fossils. Rock garden specimens are added for the public to harvest after they are no longer needed for research or teaching. The materials in the garden come from around the world, where they have been collected by researchers who brought them to KU for study.

The G-Hawk Courtyard was made possible by a gift from Christopher W. Holien.
boulder 16 is limestone and is located west of Slawson Hall next to Naismith Drive.
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boulder 16 is limestone and is located west of Slawson Hall next to Naismith Drive.

#16: Rock Type: Limestone (Stoner Limestone Member of the Stanton Limestone); Age: Pennsylvanian -306 million years old; Locale: Franklin County, KS; a gift from Martin Marietta.

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boulder 19 is limestone and it is located on the west side of Slawson Hall
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boulder 19 is limestone and it is located on the west side of Slawson Hall

#19: Limestone (Captain Creek Limestone Member of the Stanton Limestone); Age: Pennsylvanian -306 million years old; Locale: Franklin County, KS; a gift from Martin Marietta.

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boulder 20 is Limestone and is located on the west side of Slawson Hall about half way up/down the stairs
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boulder 20 is Limestone and is located on the west side of Slawson Hall about half way up/down the stairs

#20: Limestone (Burlington Limestone); Age: Mississippian -347 million years old; Jackson County, MO; a gift from Martin Marietta.

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boulder 21 is limestone and is located on the top of the stairs on the west side of Slawson Hall.
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boulder 21 is limestone and is located on the top of the stairs on the west side of Slawson Hall.

#21: Limestone (Cooper Limestone); Age: Devonian -390 million years old; Locale: 1200 feet below Jackson County, MO; a gift from Martin Marietta.

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boulder 22 is quartzite and is located on the south side of the courtyard just north of Slawson Hall.
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boulder 22 is quartzite and is located on the south side of the courtyard just north of Slawson Hall.

#22: Quartzite (Sioux Quartzite); Age: Proterozoic -1,700 million years old; Locale: Wabaunsee County, KS; a gift from Mike and Eric Frey, the Township of Wabaunsee, and Midwest Concrete Materials.

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boulder 23 is concretion in sandstone and is located on the northeast side of Slawson Hall
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boulder 23 is concretion in sandstone and is located on the northeast side of Slawson Hall

#23: Concretion in Sandstone (Dakota Formation); Age: Cretaceous -93 million years old; Locale: Lincoln County, KS; a gift from Quartzite Quarry, APAC-Kansas Inc., Shears Division, and the Kansas Geological Survey.

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boulder 24 is rippled sandstone and is located on the northeast corner of Slawson Hall
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boulder 24 is rippled sandstone and is located on the northeast corner of Slawson Hall

#24: Rippled Sandstone (Bandera Quarry Sandstone); Age: Pennsylvanian 307-310 million years old; Locale: Redfield, KS; a gift from Keith Middlemas and the Kansas Geological Survey.

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boulder 25 is limestone and is located on the northeast side of Slawson Hall
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boulder 25 is limestone and is located on the northeast side of Slawson Hall

#25: Limestone (Bethany Falls Limestone Member of the Swope Limestone); Age: Pennsylvanian -306 million years old; Locale: Linn County, KS.

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boulder 26 is limestone and is located on the east side of Slawson Hall
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boulder 26 is limestone and is located on the east side of Slawson Hall

#26: Limestone (Winterset Limestone Member of the Dennis Limestone); Age: Pennsylvanian -306 million years old; Locale: Jackson County, MO; a gift from Martin Marietta.

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boulder 27 is limestone and is located on the east side of Slawson Hall
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boulder 27 is limestone and is located on the east side of Slawson Hall

#27: Limestone (Spring Hill Limestone Member of the Plattsburg Limestone); Age: Pennsylvanian -306 million years old; Locale: Johnson County, KS; a gift from Martin Marietta.

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boulder 28 is limestone and is located on the east side of Slawson Hall
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boulder 28 is limestone and is located on the east side of Slawson Hall

#28: Limestone (Argentine Limestone Member of the Wyandotte Limestone); Age: Pennsylvanian -306 million years old; Locale: Johnson County, KS; a gift from Martin Marietta.

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boulder 29 is limestone and is located on the east side of Slawson Hall.
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boulder 29 is limestone and is located on the east side of Slawson Hall.

#29: Limestone (upper part of Farley Limestone Member of the Wyandotte Limestone); Age: Pennsylvanian -306 million years old; Locale: Johnson County, KS; a gift from Martin Marietta.

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boulder 30 is limestone and is located on the east side of Slawson Hall
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boulder 30 is limestone and is located on the east side of Slawson Hall

#30: Limestone (lower part of Farley Limestone Member of the Wyandotte Limestone); Age: Pennsylvanian -306 million years old; Locale: Johnson County, KS; a gift from Martin Marietta.

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boulder 18 is limestone and it is located on the west side of Slawson Hall at the bottom of the stairwell
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boulder 18 is limestone and it is located on the west side of Slawson Hall at the bottom of the stairwell

#18: Limestone (Swope Limestone "Harbaugh Rock"); Age: Pennsylvanian -306 million years old; Locale: Linn County, KS; a gift from John Doveton in recognition of John W. Harbaugh's discoveries on phylloid algal, mounds in KS & his contributions to geology.

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boulder 17 is limestone and is located west of Slawson Hall, next to Naismith Drive
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boulder 17 is limestone and is located west of Slawson Hall, next to Naismith Drive

#17: Rock Type: Limestone (South Bend Limestone Member of the Stanton Limestone); Age: Pennsylvanian -306 million years old; Locale: Franklin County, KS; a gift from Martin Marietta.

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boulder 2 is petrified wood is is located on the southeast side of the courtyard
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boulder 2 is petrified wood is is located on the southeast side of the courtyard

#2: Rock Type: Petrified Wood (Carlile Shale); Age: Cretaceous -88 million years old; Locale: Osbourne County, KS; a gift from Quentin Kurtz.

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boulder 15 is rippled sandstone and is located west of Slawson Hall next to Naismith Drive
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boulder 15 is rippled sandstone and is located west of Slawson Hall next to Naismith Drive

#15: Rock Type: Rippled Sandstone (Boggy Formation); Age: Pennsylvanian 307 million years old; Locale: Latimer County, OK; a gift from Keith Middlemas and the Kansas Geological Survey.

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boulder 14 is limestone and is located west of Slawson hall just off Naismith Drive.
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boulder 14 is limestone and is located west of Slawson hall just off Naismith Drive.

#14: Rock Type: Limestone (Bethany Falls Limestone Member of the Swope Limestone); Age: Pennsylvanian -306 million years old; Locale: Platte County, MO; a gift from Martin Marietta.

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boulder 13 is limestone and is located at the corner of Crescent road and Naismith Drive, north of Ritchie Hall.
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boulder 13 is limestone and is located at the corner of Crescent road and Naismith Drive, north of Ritchie Hall.

#13: Rock Type: Limestone (Cooper Limestone); Age: Devonian -390 million years old; Locale: 1,200 feet below Jackson County, MO; a gift from Martin Marietta.

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boulder 12 is limestone and is located on the north side of Lindley and Ritchie just off Crescent Road
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boulder 12 is limestone and is located on the north side of Lindley and Ritchie just off Crescent Road

#12: Rock Type: Limestone (Winterset Limestone Member of the Dennis Limestone); Age: Pennsylvanian -306 million years old; Locale: Jackson County, MO; a gift from Martin Marietta.

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boulder 11 is limestone and is located on the north side of Lindley just off Crescent Road
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boulder 11 is limestone and is located on the north side of Lindley just off Crescent Road

#11: Rock Type: Limestone (Winterset Limestone Member of the Dennis Limestone); Age: Pennsylvanian -306 million years old; Locale: Jackson County, MO; a gift from Martin Marietta.

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boulder 10 is Limestone and is located on the north side of Lindley Hall along Crescent Road.
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boulder 10 is Limestone and is located on the north side of Lindley Hall along Crescent Road.

Rock Type: Limestone (Winterset Limestone Member of the Dennis Limestone); Age: Pennsylvanian -306 million years old; Locale: Jackson County, MO; a gift from Martin Marietta.

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boulder 9 is Limestone and is located on the west side of Lindley by the stairs that lead up to Crescent Road.
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boulder 9 is Limestone and is located on the west side of Lindley by the stairs that lead up to Crescent Road.

#9: Rock Type: Limestone (Fort Riley Limestone Member of the Barneston Limestone, var. Silverdale); Age: Permian -296 million years old; Locale: Cowley County, KS; a gift from US Stone Industries.

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boulder 8 is Slate and is located on the east side of Ritchie in the courtyard
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boulder 8 is Slate and is located on the east side of Ritchie in the courtyard

#8: Rock Type: Slate; Age: Cambrian/Late Proterozoic 488-1000 million years old; Locale: Randolph County, NC; a gift from Martin Marietta.

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boulder 7 is three pieces of Columnar Basalt.  This is located on the north side of the courtyard.
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boulder 7 is three pieces of Columnar Basalt.  This is located on the north side of the courtyard.

#7: Rock Type: Columnar Basalt; Age: Cenozoic 238-6.1 million years old; Locale: Chifeng Volcanic Field, Inner Mongolia; a gift from Steve Dixon.

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boulder 6 is Augen Gneiss and is located on the northeast side of the courtyard.
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boulder 6 is Augen Gneiss and is located on the northeast side of the courtyard.

#6: Rock Type: Augen Gneiss; Age: Cambrian/Late Proterozoic 520-650 million years old; Locale: Guilford County, NC; a gift from Martin Marietta.

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boulder 5 is deformed granite and is located on the east side of the courtyard.
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boulder 5 is deformed granite and is located on the east side of the courtyard.

#5: Rock Type: Deformed Granite; Age: Cambrian-Ordovician 455-540 million years old; Locale: Catawba County, NC; a gift from Martin Marietta.

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boulder 4 is two single pieces of columnar basalt.  Tall enough to be stools to sit on and are located on the southwest side of Lindley Hall in the courtyard.
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boulder 4 is two single pieces of columnar basalt.  Tall enough to be stools to sit on and are located on the southwest side of Lindley Hall in the courtyard.

#4: Rock Type: Columnar Basalt; Age: Cenozoic 23.8-6.1 million years old; Locale: Chifeng Volcanic Field, Inner Mongolia; a gift from Steve Dixon.

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boulder 3 is granite and is located on the southwest corner of Lindley Hall in the courtyard.
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boulder 3 is granite and is located on the southwest corner of Lindley Hall in the courtyard.

#3: Rock Type: Granite; Age: Pennsylvanian-Permian 265-325 million years old; Locale: Rowan County, NC; a gift from Martin Marietta.

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Ritchie & Slawson Hall
1414 (Ritchie) or 1420 (Slawson) Naismith Dr.
Lawrence, KS 66045
eeecenter@ku.edu
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