Image depicts a range of mountains with a valley and river running through it. Based on Read's itinerary for this trip, this may be the Skeena River and valley.
Image of a high desert plateau in the Similkameen region of BC, with a river running through it and hills all around. The river is likely the Similkameen River.
Image of two young Musqueam boys kneeling down at the edge of the Fraser River. The boys are facing away from the camera. A different image of the same scene is printed on page 59 of Carter's book "Abundant Rivers."