What are the highest water falls in America today?

Answer 1

According to the Wikipedia list, the top ten highest waterfalls in the U.S. are...

1. Olo'upena Falls in Hawaii -- 900 m
2. Pu'uka'oku Falls in Hawaii -- 840 m
3. Waihilau Falls in Hawaii -- 792 m
4. Colonial Creek Falls in Washington -- 788 m
5. Johannesburg Falls in Washington -- 751 m
6. Yosemite Falls in California -- 739 m
7. Mana'wai'nui Falls in Hawaii -- 719 m
8. Avalanche Basin Falls in Montana -- 707 m
9. Harrison Basin Falls in Montana -- 707 m
10. Haloku Falls in Hawaii -- 700 m

The top ten highest waterfalls on the supercontinent of America are...

1. Angel Falls in Bolívar, Venezuela -- 979 m
2. Three Sisters Falls in Junin, Peru -- 914 m
3. Yumbilla Falls in Amazonas, Peru -- 896 m
4. James Bruce Falls in British Columbia, Canada -- 840 m
5. Kaieteur Falls in Mazaruni-Potaro, Guyana -- 822 m
6. Colonial Creek Falls in Washington, U.S.A. -- 788 m
7. Gocta Cataracts in Amazonas, Peru -- 771 m
8. Johannesburg Falls in Washington, U.S.A. -- 751 m
9. Yosemite Falls in California, U.S.A. -- 739 m
10. Avalanche Basin Falls and Harrison Basin Falls in Montana, U.S.A. -- 707 m each

Answer 2

Depends on exactly how the falls are measured- free fall, series of steps, etc. One good candidate for the title of highest in the US is Yosemite Falls, 2,425 ft.

Answer 3

Angel Falls in Venezuela.