title: Grindstone (disambiguation)
text: # Grindstone (disambiguation)
  
  Grindstone may also refer to:
  
  * A type of millstone used to grind grains such as wheat
  * Grindstone (horse), 1996 Kentucky Derby winner and sire of the racehorse Birdstone
  * Grindstone (album), 2007 album by the Norwegian band Shining
  * Grindstone (time tracking software), a program that allows users to create and organize tasks and to track time
  * Grindstone 100 Miler, a 100-mile-long (160 km) ultramarathon in Virginia
  * Grindstone (video game), a 2019 video game by Capybara Games
  
  Places:
  
  * Grindstone, Pennsylvania
  * Grindstone, South Dakota
  * Grindstone, Manitoba, a peninsula and part of the Hecla-Grindstone Provincial Park in Manitoba, Canada.
  * Grindstone Butte, a summit in South Dakota
  * Grindstone City Historic District in Port Austin Township, Michigan
  * Grindstone Island (Magdalen Islands), an island in the Magdalen Islands, Quebec, Canada
  * Grindstone Island (Ontario), is an island in Big Rideau Lake, Ontario, Canada.
  * Grindstone Island, is one of the Thousand Islands, in the St. Lawrence River in the United States of America.
  