Intertribal Life Newspaper -

LANSING, Mich.-Tribal and state partners are working closer than ever to care for and preserve more than 100 petroglyphs carved into a large sandstone outcrop on Michigan's Cass River floodplain using laser technology.

"We created digital models of the Sanilac Petroglyphs with harmless pulses of light that detect and measure the 3D world," said Stacy Tchorzynski, an archaeologist at the State Historic Preservation Office (SHPO) and project manager for the Sanilac Petroglyphs. "This is an ambitious collaboration between SHPO and MDOT, in partnership with the Ziibiwing Center of Anishinabe Cu...