In MLB, no. The last change in mound height occurred at the start of the 1969 season when the height was lowered from 15 inches to 10 inches.
Yes and it was 40 ft but now its 43 ft.
40 or 43 feet
to legally play only one person can be on the pitchers mound while the game is in play
The diameter of an MLB pitcher's mound is 18 feet.
60' 6" (standard distance for high school and up)
Measure from the front edge of the pitching rubber to the back tip of home plate.