@misc{indiciae7c680e18b228, title = {Grand Canyon River Alert System—Implementing an emergency alert system for wilderness recreation}, author = {Joseph E Thomas and Thomas M. Gushue and Erica Byerley and Paul E. Grams}, year = {2025}, doi = {10.3133/ofr20251027}, url = {https://pubs.usgs.gov/publication/ofr20251027}, note = {Source identifier: ofr20251027} }