Hillsboro — Air Rail Avenue return: short bicycle return

Hillsboro — Air Rail Avenue return: short bicycle return — detailed guide

Source review: 2026-10-21. A dated source review does not guarantee current-day conditions.

Hillsboro, Wisconsin · Up to 2 miles return · Crushed-stone bicycle rail-trail

Start: Hillsboro — Air Rail Avenue return, Hillsboro State Trailhead, Air Rail Avenue, Hillsboro, Wisconsin. Fresh DNR explicitly lists parking at the Hillsboro Air Rail Avenue trailhead. Use ordinary signed trail-user spaces and walk to the main, rather than substituting nearby industrial or commercial parking. Use designated ordinary visitor spaces, respect reserved spaces and walk through the lot to the signed main path. The address identifies a public facility, not a surveyed stall.

Ride: Follow the signed main path on the signed crushed-stone Hillsboro main toward Union Center. Turn after 1 outward mile or before the first public-road crossing, work barrier, uncertain continuation or uncomfortable transition, whichever comes first; retrace. Walk any initial lot or access-drive interface. Do not use a road or private-property detour.

Distance: Chosen 2-mile maximum return, not the full regional corridor or a surveyed parking-to-parking distance. Earlier interfaces shorten the outing; parking walking is extra.

Permission and effort: Source-backed ordinary bicycle use on the designated improved main path; walking-only spurs and adjacent private property are excluded. Fresh DNR specifically describes this named bicycle trail as level or fairly level. Qualitative effort guidance, not a measured maximum slope or survey of every lot ramp. Walk or turn before uncomfortable transitions.

Planning: DNR lists year-round use; choose daylight and obey current lot gates, closures and seasonal conditions. Cyclists age 16 and older need a personal Wisconsin state trail pass, retained current price $5 daily or $25 annual. Posted parking and vehicle terms are separate. Ordinary pedal bicycles on designated improved main. Yield, announce passes and leash pets eight feet or less. Do not use adjacent natural branches, roads or snowmobile bypasses. Winter trail permissions do not guarantee comfortable bicycle conditions.

Access reviewed October 20, 2026 Central (October 21 UTC): This existing four-mile Hillsboro corridor connects to the 400 at Union Center. The additional 400 legs toward Elroy or Wonewoc are separate routes and are not part of this capped return. Elroy–Sparta tunnel and CountyT bridge closures do not automatically close Hillsboro. Retained statewide notices were screened; absence of another matched notice is not a local field inspection. Current signs, work zones and actual tread govern. This is a dated source review, not a field inspection or current-day all-clear. Postpone for snow, ice, high water, soft tread or barriers rather than improvising a bypass.

Bring water and choose suitable weather. Parking walking is extra. No surveyed parking-space pin or navigable GPX is supplied.

Sources: Fresh DNR improved main / public parking / operating terms · Fresh DNR specific bicycle permission / effort / surface