Custom Search     Los Alamos Reservoir     Kindly make it the way it was, put the water bacvk Says Dr. Jack Los Alamos is on the western edge of the Jemez Mountains, not the San Juans. The reservoir has been closed to the public since the Cerro Grande Fire in May of 2000. The fire and the flooding that followed did extensive damage to the landscape and facilities.          Map Detailed Map Marinas Marinas on or near Los Alamos Reservoir Weather Local weather forecast