While working on a ranch in the snake river area of Oregon, I came across this flower by a mountain stream.
The picture is not very clear as I was on a horse and we were gathering cows. The flowers were pure white about 3/4" tall to 1" at an elevation between3,000 -3,500 ft.As can be seen they were in full sun in this valley at about 1:30 in the afternoon.July or August of 2004
Can anyone identify?