Oak Leaves
Hartley Nature Center
Natural History. Stewardship. Sustainablility.

Frog Ponds

This map shows the ponds-sites that were monitored in 2007 (using standard protocol modified from Hamline University). This monitoring occurs through 3 toad-frog seasons. Monitoring and non-monitoring observations every year adds important information of changes in pond toad-frog diversity, distribution, and breeding activity levels the park.

Hartley Nature Center, 3001 Woodland Ave. Duluth, MN 55803       location map
Phone: 218-724-6735    email:

Hours: Monday-Friday, 9-5, Sat, 10-5, Sun, 12-5
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