Indiana's Highest Points and Notable Terrain

Indiana is one of the flattest states in the US — the glaciers created a nearly level agricultural plain across most of the state. The highest point is modest, but the southern hill country and Lake Michigan dunes provide genuine topographic interest.

Hoosier Hill (1,257 ft)
Indiana's highest point — a forested hill in Wayne County in the easternmost part of the state. The summit is on private farmland, accessible with a short walk from a gravel road. The Randolph County terrain is gently rolling; the summit is unmarked except by a benchmark and a small sign. Hoosier Hill is one of the less dramatic state high points in the US.

Indiana Dunes (Mt. Tom — 192 ft)
Mount Tom, Mount Holden, and Mount Jackson are Indiana's highest dunes — active sand dunes pushed up by Lake Michigan wind and the interactions between lake and shore. The 3-Dune Challenge (climbing all three in sequence) gains 1,000+ feet total and is genuinely strenuous. The dune faces are steep (30–35 degrees) — the climb in loose sand is harder than the elevation suggests.

Brown County Upland (860 ft)
The sandstone upland of Brown County — not a mountain but the highest continuous terrain in Indiana. The Hesitation Point overlook in Brown County State Park (820 ft) gives views across the forested hills. The county's terrain has the most mountain-like character in the state.

Clifty Falls Canyon (300 ft)
The canyon walls above the Ohio River in Jefferson County — the limestone canyon walls near Madison reach 300 feet above the river, creating Indiana's most dramatic river scenery.

Turkey Run Canyon Formations (60–80 ft)
The Dakota sandstone canyon walls of Turkey Run State Park — the slot canyon passages (Rocky Hollow) are Indiana's most impressive geological feature in terms of human-scale drama, even if the absolute heights are modest.