David G. Hoffman: 029468a- I Have Penetrated The Darkness And I Have Returned My Flickr Friends...Snicker
David G. Hoffman: 029393a- My First Destination Is The Elroy / Sparta Bike Trail. The First Rails-To-Trails Conversion In The U.S.
David G. Hoffman: 029384a-Another Wisconsin Trip With Tom, My Cousin And Life-long Friend
David G. Hoffman: 029383a- A View Of The Wisconsin Countryside From The Elroy / Sparta Bike Trail
David G. Hoffman: 029387a- Biking South Out Of Sparta The Trail Suddenly Changes As You Approach The Tunnel. The Temperature Also Drops Significantly
David G. Hoffman: 029386a-Tunnel #3 Is 8 Miles South Of Sparta. It Is The Longest Tunnel At 3/4 Mile Long. It Is Very Dark, Cold, And Wet As Water Drips From The Ceiling And Runs Down The Walls
David G. Hoffman: 029407a- The Entrances To Tunnel #3 Are Covered With Stone And Brick On The Elroy / Sparta Bike Trail
David G. Hoffman: 029406a-- The Entrances To Tunnel #3 Are Covered With Stone And Brick On The Elroy / Sparta Bike Trail
David G. Hoffman: 029408a- Except For The Entrances, The Walls And Ceiling Are Rough Hewn
David G. Hoffman: 029390a- A Place To Take A Break Along The Elroy / Sparta Bike Trail
David G. Hoffman: 029401a- Creeks And Trestles All Along The Elroy / Sparta Bike Trail
David G. Hoffman: 029392a- At Tunnel #2 A Gentle Breeze Out Of The South Was Pushing A Cold Mist Out Of This Northern End
David G. Hoffman: 029396a- This Tunnel Is Bricked The Entire Length. The Brick Prevents Rocks From Falling From The Ceiling And Walls
David G. Hoffman: 029398a- The Southern End Of The Tunnel
David G. Hoffman: 029403a- I Am Always Amazed When I Bike Through This Area That This Canyon Was Blasted Into Existence By The Railroad Before They Could Excavate The Tunnel - on Explore! ⭐ July 2, 2021
David G. Hoffman: 029404a- The Southern End Of Tunnel #3 : Time To Put On A Waterproof Windbreaker And Attach The Bike Light. The Temp In The Tunnel Is 60 F And Cold Water Drips From The Ceiling And It's Very, Very Dark!