Friends of Nachusa Grasslands
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Ditch and Water Flow
Picture
February 2, 2002
This tree line is the swale (aka the ditch) which runs north to south through the middle of the Big Woods Unit. The old Ditch Crossing is at the right edge just south of the large oak tree. (This tree finally died of oak wilt in the summer of 2012.) Photo looks to the east from East Knob.
Picture
February 2002 - Mike Hanson
Picture
February 2002 - Tom Mitchell
Picture
February 2002 - Gene St Louis
Much of the Ditch was cleared out on the first Big Woods Workday held jointly with the Dot/Doug Unit and Gene St Louis.
Burn piles #6 and #7 were created during that workday.​
Picture
February 9, 2002
Cedar tree at left of photo is large cedar in the middle of the first photo. Photo looks to the west at East Knob (before any cleanup) and at North Knob which is on right side of photo. This date and time was early morning on the first Big Woods workday.
Picture
January 24, 2004
Picture
December 17, 2009
Subsequent panorama photos of South Knob and North Knob. Only one tree remaining in the Ditch from 2002. It has since fallen down. 
Picture
April 13, 2011
Norris is dead but still standing on the north end of North Knob.
Picture
February 17, 2012
Two more dead trees have fallen down since this photo was taken. We can’t remove them without damaging surrounding important prairie forbs. Anyhow, they didn’t fall down until after we became really busy spraying birdsfoot trefoil. The ditch is now lined with nice sedges.

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  • Home
  • About Friends
    • Mission and Leadership
    • Endowments
    • Heritage Heroes Initiative
    • Friends Annual Reports
    • Newsletters >
      • PrairiE–Update (email)
      • A Prairie Calling (print and digital)
    • Friends Annual Meeting 2022
    • Commenting Policy
  • Plan Your Visit
    • Hours & Parking
    • Directions and Map
    • Visitor Center
    • Teacher Resources
    • Pet Policy
    • Public Bison Tours
    • Bison Viewing
    • Hiking >
      • Hiking Guidelines
      • Hiking Destinations
      • Stone Barn Savanna Tour
      • Visitor Center Trail
      • Scavenger Hunt
    • What's In Bloom?
    • Autumn on the Prairie
    • Exploring Nachusa Grasslands on Your Own
    • Things to Do
    • Places to Eat and Stay
    • Local Sites to Visit and Explore
  • Donate
  • Calendar
  • Volunteer
    • Volunteer Opportunities
    • Thursday and Saturday Workdays >
      • Workday Signup
      • Volunteer Workday Safety Protocols
      • Workdays – November to February
      • Leader Workday Safety Protocols
      • Steward Workday Tips
    • Stewardship Teams
    • Workday Email List
    • Steward Login
  • Stewardship
    • Nachusa Stewardship
    • Restorations
    • Planting Histories >
      • Stewardship Unit Planting Histories
      • Planting Histories in Chronological Order
    • Stewards and Staff
    • Groups and Committees
    • Available Units
    • Controlled Burns
    • Prescribed Fire Recruitment
    • Restoration Publications
    • Stewardship Resources >
      • Weekly Top Picks
      • Seed Collection Guides
      • Invasive Plant Management
      • Invasive Identification
      • Monitoring
      • Links & Resources
  • Science
    • Science at Nachusa Grasslands
    • Science Grants >
      • Science Grants 2023
      • Science Grants 2022
      • Science Grants 2021
      • Science Grants 2020
      • Science Grants 2019
      • Science Grants 2018
      • Science Grants 2017
      • Science Grants 2016
      • Science Grants 2015
      • Science Grants 2014
      • Science Grants 2013/2012/2011
    • Science Symposium 2022
    • Science Symposium Abstracts >
      • Science Symposium Abstracts 2019
      • Science Symposium Abstracts 2018
      • Science Symposium Abstracts 2017
      • Science Symposium Abstracts 2016
    • Potential Research Topics
    • Scientific Publications
    • Testimonials >
      • Dr. Holly Jones
      • Dr. Nick Barber
      • Kimberly Elsenbroek
    • Science Videos
    • Become a Community Scientist >
      • About Community Scientists
      • Butterfly Monitoring
      • Calling Frog Monitoring
      • Dragonflies & Damselflies
      • RiverWatch
  • About Nachusa
    • General Info
    • Prairie Smoke Annual Reports
    • Plant Inventory >
      • Common Names
      • Genus Species
    • Animal Inventory >
      • Amphibians
      • Birds
      • Bison Bison >
        • Bison
        • Bison Babies Broadcast Videos
      • Fish
      • Insects
      • Mammals
      • Other Arthropods
      • Reptiles
    • History
    • Jobs
    • Hunting
    • Geology >
      • Geology Part 1
      • Geology Part 2
      • Geology Part 3
    • 30th Anniversary Memories
    • Websites of Interest
  • BLOG AND MEDIA
    • Nachusa Blog
    • In The News
    • Photo Gallery >
      • Spring Photos
      • Summer Photos
      • Autumn Photos
      • Winter Photos
      • Visitor Photos
    • Submit Your Photos
    • Videos
  • Contact Us / FAQs