Minnesota Communities
  Hibbing  |  Red Wing  |  St. Anthony  |  People  |  Occupations  |  Landscapes  |  Milestones  |  Timelines  |  Tours  
Home / Hibbing / Milestones / Prospecting / Chart of Test Pits
Welcome to Minnesota Communities

Teachers
    overview
    primary sources
    contact us
Gallery
    advertisements
    art
    books
    data
    diagrams
    diaries
    documents
    letters
    maps
    newpapers
    objects
    photographs
About
    philosophy
    bibliography
    credits


Prospecting

Title: Chart of Test Pits
Type: Diagram
Date: 1892
Source: Minnesota Historical Society

Description: These are diagrams of some test pits that were dug from a mine on the Iron Range, near Hibbing.

Chart of Test Pits

Activities:

  1. Which layers do all thee test pits have in common?



    Answer:
  2. What do the numbers down the center of each test pit graphic stand for?



    Answer:
  3. Why were these pits not dug deeper?



    Answer:
  4. Would these ore deposits best be mined by an open-pit mine, or by an underground one?



    Answer: