Stone tools were chipped, flaked, and or ground into specific shapes for use in a wide range of tasks.
Chipped with great skill and care from carefully-selected materials, these points were attached to the ends of darts or arrows, and used for hunting game. The Hidden Ridge site, discovered at Tonto National Monument in 2006, contained points spanning about 8000 years of history, many of which pre-date the building of the cliff dwellings.
Click on any of the pictures below to bring up Reflectance Transformation Imaging (RTI) data for each of these points. RTI allows you to “virtually” change the lighting position, revealing details of the points’ fabrication and structure.
Note: If you see an error message below or when following the thumbnail links to the RTI viewers, please copy and paste chrome://settings/system into the Chrome search bar and toggle “Use hardware acceleration when available” to off.
Larger Flaked Tools
In addition to small projectile points 2-5 cm in length, larger tools like the 15 cm one below were fabricated using similar chipping techniques. Made from a fine-grained volcanic material, this tool is notched in the center, suggesting it may been attached to wooden shaft for use in light chopping and cutting.
Left-click-and-drag to pan, Ctrl(PC)/Cmd(Mac) + left-click-and-drag on picture to change lighting angle.
Ground Stone Tools
This stone disk with a hole in the center, possibly argillite, could have been used as a spindle whorl, or perhaps a personal ornament worn on a string.