The Grand Canyon National Park publishes PDF Trail Descriptions for a number of the trails in the park. This Boucher Trail description is typical: black and white pdf, strictly functional look, no maps or pictures - but with all the key details you need including some brief historic information and appropriately pessimistic details on water and route finding.

Linked version retrieved 2/2/2020 from Plan Your Visit - Grand Canyon National Park (U.S. National Park Service).