Hike the Rock County Chapter
Download a Regional Map and Segment Descriptions
To see a regional overview map of Ice Age Trail segments in this area and a free excerpt from our Ice Age Trail Companion Guide 2011 providing driving directions and descriptions of each segment, click here to download a map/description packet. For highly detailed maps suitable for hike navigation, check out our Ice Age Trail Atlas.
Notes on Route Changes and Current Conditions
The map below shows all official Ice Age National Scenic Trail segments (blue lines; actual trail is marked with yellow blazes) and unofficial connecting routes (green lines; actual routes are unmarked). Notes (if any) on route changes and current conditions are indicated by “push pins” on the map; details for each push pin are shown below the map.
To zoom in, double-click or use the slider on the left side of the map.
The data shown on this map is for general information purposes only. The Ice Age Trail Alliance gives no warranty, expressed or implied, as to the accuracy, reliability, or completeness of these data. It is strongly recommended that only the Ice Age Trail Atlas and Ice Age Trail Companion Guide 2011 be used as official resources for information about the Trail.
As the Ice Age Trail evolves toward completion its route changes over time as volunteers build new sections and other sections are rerouted or closed. Weather and activities such as hunting and land management (e.g., logging) can also alter Trail navigation and access. Pushpins on the map above and detailed comments below (if any) are intended to keep Ice Age Trail users up to date on current Trail conditions and route changes (compared with the Ice Age Trail Atlas and Ice Age Trail Companion Guide 2011).
Ice Age Trail Alliance: Green County Trail update
New crossover between Badger State Trail and Sugar River State Trail
effective date: Dec 30, 2010
Ice Age Trail Atlas Map 69f; Ice Age Trail Companion Guide p. 125
A new packed gravel crossover between the Sugar River Trail (SRT) and the Badger State Trail (BST) north of County Highway C and the Monticello train depot is now open.
The Ice Age Trail enters Monticello from the south on the Sugar River State Trail and from the north on the Badger State Trail. The 2011 Ice Age Trail Atlas shows one Ice Age Trail line through Monticello on the Sugar River State Trail and the Badger State Trail. The two state trails are actually separate, prompting the question of when to switch from one to the other to stay on the IAT. With the new crossover, you can change from one trail to the other via a packed gravel path north of Lake Avenue and County Highway C, just beyond Sugar River Trail mile marker 17. Signage is not yet in place, but it's expected to be placed sometime in summer 2011.
Please note: The 2011 Companion Guide description of the crossover is incorrect. It says to cross over to the Badger State Trail at Lake Avenue, north of the Monticello Depot. The new packed gravel crossover is the way to go.
Rock County:Current Conditions Report
Section of Janesville Segment temporarily closed
effective date: Aug 31, 2011
Ice Age Trail Atlas Map 74f; Ice Age Trail Companion Guide p. 115
A portion of the Janesville Segment running on a city greenbelt behind Walmart is closed temporarily for construction on an infiltration system. Excavation is expected to be finished in September. A suggested walkaround is here.
Rock County:New Trail Segment
Arbor Ridge Segment - New Trail
effective date: Sep 21, 2011
Ice Age Trail Atlas Map 74f; Ice Age Trail Companion Guide p. 115
The Arbor Ridge Segment, a new two-mile segment of the Ice Age Trail, is now open in Janesville. It runs from Riverside Park through the Robert O. Cook Memorial Arboretum. Volunteers with the IATA's Mobile Skills Crew Program constructed the new segment during an event in September and a follow-up effort in October 2011. The trail connects to the Robert O. Cook Memorial Arboretum, where existing trails have been converted into official yellow-blazed Ice Age Trail.