Problem: Where are bedrock channels more likely to be found? Where are bedrock channels more likely to be found? Bedrock channels are typically found in the headwaters of river systems where streams have steep slopes. Bedrock channels are typically found in the mouths of river systems where streams have steep slopes. Bedrock channels are typically found in the mouths of river systems where streams have shallow slopes. Bedrock channels are typically found throughout the entire lengths of river systems. Bedrock channels are typically found in the headwaters of river systems where streams have shallow slopes.