Natural streamflow in the Jemez River at the boundaries of Indian lands was estimated from available streamflow records which were adjusted by estimated losses of water due to man-made changes in the hydraulic characteristics of the river basin. The average estimate annual natural streamflow is 53,180 acre-feet at the upstreams boundary of the Jemez Indian Reservation, 53 ,180 acre-feet at the Jemez--Zia Indian Reservation boundary, 55 ,440 acre-feet at the Zia--Santa Ana Indian Reservation boundary , and 46,550 acre-feet at the downstream boundary of the Santa Ana Reservation. (USGS)