Logan Simpson’s Arizona cultural resources specialists completed an NRHP nomination for the Grand Canyon Cross-Canyon Corridor Historic District. The corridor includes the exceptionally diverse landscapes of the Bright Angel, North Kaibab, South Kaibab, and Colorado River trails—which collectively represent approximately 30 miles of maintained trails within the Grand Canyon. The inventory includes all buildings, structures, and objects associated with the facilities and campgrounds along these trails, including Yaki Point, the Bright Angel and Cottonwood Campgrounds, Roaring Springs, and the distinguished Phantom Ranch landscape. The Phantom Ranch landscape includes cabins, a lodge, a recreational center, and a shower house designed by renowned architect Mary Colter, as well as numerous buildings and structures constructed by the CCC during the 1930s. Logan Simpson’s landscape architecture, historic preservation, and archaeology staff collaborated with the park’s cultural resources specialist and the NPS Intermountain Region historical landscape architect to ensure thorough and accurate documentation of the condition and historic integrity of the trails’ character-defining features. The inventory and NRHP nomination provides Grand Canyon National Park staff with the information necessary to make decisions regarding preservation, interpretation, and resource management.