Indiana · USA

Monroe Lake Backcountry Peninsula Access Road

Hidden quarry roads around Indiana's largest lake

Easy

This network of maintenance roads circles Monroe Lake’s remote peninsulas, originally built to access limestone quarries that were flooded when the dam went in during the 1960s. The route passes several submerged quarry operations visible in clear water, while the main technical challenge comes at Schooner Creek ford where the old quarry haul road continues underwater. Army Corps engineers still use these access points to maintain boat ramps and monitor water quality in areas most boaters never reach.

Easy to moderate difficulty depends entirely on seasonal water levels and recent rain. High clearance recommended but not always required, though the limestone base can hide deep puddles after storms. Any season works except during spring flood stage when access gates get locked. No permits needed for day use, but overnight camping requires Army Corps campground reservations. The real prize is solitude on one of Indiana’s busiest lakes, plus some of the clearest water in the state where you can see 20 feet down to old quarry equipment.

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Trail Specs

Difficulty
Trail Type
Surface
Features, ,
Length (miles)12 mi / 19.3 km
DurationFull day
Max elevation (ft)580 ft
Best seasonApril-November
Minimum vehicleStock high-clearance vehicle
Nearest townBloomington, Indiana
Land managerU.S. Army Corps of Engineers
Permit requiredNo
Cell serviceDecent
Water crossingsYes
Dispersed campingYes
Start coordinates
End coordinates
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Official: Easy

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