What is Mark Twain National Wildlife Refuge in Mercer, IL?
Mark Twain National Wildlife Refuge is a Park located in Mercer County, IL
Park
USGS Feature Class
#420167
USGS Feature Id
528.08feet
Elevation above sea level
161meters
Elevation above sea level
Where is Mark Twain National Wildlife Refuge located?
MercerCounty
Mark Twain National Wildlife Refuge is located in Mercer County, IL
41.1167, -90.95431
latitude / longitude
GPS coordinates for Mark Twain National Wildlife Refuge
Keithsburg
USGS Map Name
Map of Mark Twain National Wildlife Refuge in Mercer, Illinois
