The following are helpful links to sites with information about many of the places I've photographed:

Indiana Department of Natural Resources

Indiana DNR Nature Preserves

Indiana Chapter of the Nature Conservancy

Indiana Land Trusts - Helpful map showing all land trusts in Indiana

Central Indiana Land Trust

Acres Land Trust - North Eastern Indiana

NICHES Land Trust - West Central Indiana

Red-Tail Conservancy - East Central Indiana

Sycamore Land Trust - South Central Indiana