A hydrograph is used to show how the water flow in a drainage basin (particularly river runoff) responds to a period of rain. The hydrographs are an incredibly important and helpful piece of information for fisherman that will give you a glimpse at what the river looks like.

The Bureau of Reclamation operates a network of automated hydrologic and meteorologic monitoring stations located throughout the Pacific Northwest. This network is called Hydromet, transmitting water and environmental data to provide near-real-time water management capability.

Learn about which species inhabit particular rivers and reservoirs and what is popular in the area. Find out what to expect, directions to fisheries, and other general information.