This cache was placed as part of Hike-n-Seek 2015.
Walleye (Sander vitreus, formerly Stizostedion vitreum) is a freshwater perciform fish native to most of Canada and to the Northern United States. It is a North American close relative of the European pikeperch. The walleye is sometimes called the yellow walleye to distinguish it from the blue walleye, which is a subspecies that was once found in the southern Ontario and Quebec regions, but are now presumed extinct. However, recent genetic analysis of a preserved (frozen) 'blue walleye' sample suggests that the blue and yellow walleye were simply phenotypes within the same species and do not merit separate taxonomic classification.
In some parts of its range, the walleye is known as the walleyed pike, colored pike, yellow pike or pickerel (esp. in English-speaking Canada), although the fish is not related to other species of pikes which are members of the family Esocidae.
Walleyes show a fair amount of variation across watersheds. In general, fish within a watershed are quite similar and are genetically distinct from those of nearby watersheds. The species has been artificially propagated for over a century and has been planted on top of existing populations or introduced into waters naturally devoid of the species, sometimes reducing the overall genetic distinctiveness of populations.
**Cache at your own risk**
Geocaching, hiking, backpacking and other outdoor activities involve risk to both persons and property. There are many variables including, but not limited to, weather, fitness level, terrain features and outdoor experience, that must be considered prior to seeking a Cache. Be prepared for your journey and be sure to check the current weather and conditions before heading outdoors. Always exercise common sense and caution.
**Remember to be good ambassadors to nature. We as geocachers have a responsibility to leave it as we found it, so others may enjoy nature's glory. Always replace the cache the way you found it, so others may enjoy the find.
For more on geocaching in Iowa, visit the Iowa Geocachers Organization home page 
