Figure 14. Rio Grande gaging station locations and discharge records. Interstation comparisons indicate that mean annual discharge has been modified by manmade structures. The record from
Embudo was chosen to represent the flow of the upper Rio Grande. The record from Presidio was chosen as a representative for the lower Rio Grande. Dashed vertical lines track similarities
between the records; the horizontal line in each record represents the mean discharge for the entire record. cfs, cubic feet per second.