This activity guide is intended to increase student awareness and understanding about the Colorado River Basin. Each activity includes objectives, procedures, materials list, related activities, questions for students, and related information. The activities are varied to appeal to a wide range of learning styles and modalities and are interdisciplinary in design. The first chapter is an overview for teachers and the remaining chapters contain the activities: (1) "Wildlife Webs"; (2) "Big Basin Blues"; (3) "Rights and Wrongs"; (4) "Water in the Air"; (5) "Canyon Country Art"; (6) "Counting Water"; (7) "Ancient Waters"; (8) "Invisible Passengers"; and (9) "Habitat Hazards." (MKR)