September, 1998.
The sun was playing hide-and-seek, so these pictures are variably-lit.
The half-size pictures here are links to the full-size ones.
Mono Lake
Tufa (in sunlight)
Tufa (in cloud-shadow)
Tufa, about 12 feet (4 meters) high
Birds flying over tufa (I have no idea what kind of birds they are)