- Quartz Biface
View with Reflectance Transformation Imaging (RTI) Description: Quartz biface (left: original; right: enhanced with RTI). Dimensions: Unknown. Collection: Grand Canyon National Park (Catalog No. GRCA 103852). - Fire Control Aid Ranger Badge
View with Reflectance Transformation Imaging (RTI) Description: National Park Service Fire Control ranger badge (left: original; right: enhanced with RTI). Dimensions: Unknown. Collection: Grand Canyon National Park (Catalog No. GRCA 13425). - Rose Spring Projectile Point
View with Reflectance Transformation Imaging (RTI) Description: Rose Spring projectile point, orange/buff chert, with one broken notch (left: original; right: enhanced with RTI). Dimensions: Unknown. Collection: Grand Canyon National Park (Catalog No. GRCA 13440). - Rosegate Series Point
View with Reflectance Transformation Imaging (RTI) Description: Rosespring Series projectile point from the Kaibab Plateau; made on black and gray mottled chert (left: original; right: enhanced with RTI). Dimensions: Unknown. Collection: Grand Canyon National Park (Catalog No. GRCA 14476). - Eastgate Point
View with Reflectance Transformation Imaging (RTI) Description: Pink chert Eastgate projectile point (left: original; right: enhanced with RTI). Dimensions: Unknown. Collection: Grand Canyon National Park (Catalog No. GRCA 14483). - Serrated Gypsum Point
View with Reflectance Transformation Imaging (RTI) Description: Serrated Gypsum point made on black and gray chert (left: original; right: enhanced with RTI). Dimensions: Unknown. Collection: Grand Canyon National Park (Catalog No. GRCA 15277). - Cottonwood/Bullcreek Point
View with Reflectance Transformation Imaging (RTI) Description: Cottonwood or Bull Creek projectile point from Tusayan Ruin (left: original; right: enhanced with RTI). Dimensions: Unknown. Collection: Grand Canyon National Park (Catalog No. GRCA 15432). - Elko Series Point
View with Reflectance Transformation Imaging (RTI) Description: Chert Elko Series projectile point (left: original; right: enhanced with RTI). Dimensions: Unknown. Collection: Grand Canyon National Park (Catalog No. GRCA 15753). - Gray Chert Biface
View with Reflectance Transformation Imaging (RTI) Description: Gray chert biface (left: original; right: enhanced with RTI). Dimensions: Unknown. Collection: Grand Canyon National Park (Catalog No. GRCA 16032). - Ranger Badge
View with Reflectance Transformation Imaging (RTI) Description: National Park Service ranger badge (left: original; right: enhanced with RTI). Dimensions: Unknown. Collection: Grand Canyon National Park (Catalog No. GRCA 19612). - Ranger Badge
View with Reflectance Transformation Imaging (RTI) Description: National Park Service ranger badge (left: original; right: enhanced with RTI). Dimensions: Unknown. Collection: Grand Canyon National Park (Catalog No. GRCA 19614). - Uniform Buttons
View with Reflectance Transformation Imaging (RTI) Description: National Park Service ranger uniform buttons (top: original; bottom: enhanced with RTI). Dimensions: Unknown. Collection: Grand Canyon National Park (Catalog No. GRCA 19632 and 13422). - Bull Creek Point
View with Reflectance Transformation Imaging (RTI) Description: White chalcedony Bull Creek projectile point (left: original; right: enhanced with RTI). Dimensions: Unknown. Collection: Grand Canyon National Park (Catalog No. GRCA 21260). - Powell's Watch, Back
View with Reflectance Transformation Imaging (RTI) Description: John Wesley Powell's watch: Burts Patent Serial No. 4056/Elgin, Illinois. "B.W. Raymond" Case No. 38590. Dimensions: Unknown. Collection: Grand Canyon National Park (Catalog No. GRCA 20836). - Clovis Point
View with Reflectance Transformation Imaging (RTI) Description: The Desert View Clovis point. This projectile point, made of Narbona Pass (formerly Washington Pass) chert, is one of only a few Paleoindian points found in the Grand Canyon. Dimensions: Unknown. Collection: Grand Canyon National Park.