As usual, we did not fully know what we were going to see when visited Pipestone National Monument. I thought it would be some memorial of a pile of rocks, certainly not expecting to see 50 quarries of various sizes, and an absolutely beautiful prairie! Two centuries ago Minnesota had 18 million acres tall grass prairie, today the remaining prairie is less than 1% of its original acreage. Elk and buffalo provided meat, clothing and tools for the Plains Indians. Plants of the prairie provided medicine and food. The first botanist in 1838 found 100 different plant species, currently the number is 300.