the Pyrenees to the south (Spain/Basque country) and the Alps to the East (Switzerland, Italy, Germany ect)
Brown river lake Michigan
The Atlantic Ocean forms the borders of the Piedmont.
what lake forms the northerm borders of Ohio
A geographer's pen. There are no natural borders or boundaries.
Lake Victoria forms part of Kenya's borders.
mountains
turds
indian
Lake Erie forms the entire north border. The Ohio River forms the entire south border. There are no natural borders on the East or West borders of Ohio.
the carribbean sea
the st.lawrence river forms part of the border between the u.s and canada. The rio grande borders between the u.s and mexico.
Canada, New Hampshire, and the Atlantic Ocean form Maines borders.