<Tr> <Th_colspan="2"> Lists of National Historic Sites by location </Th> <Th> Number of NHSes </Th> <Th> First NHS designated </Th> <Th> Example of NHS and designation date </Th> </Tr> <Tr> <Td> Alberta sites </Td> <Td> </Td> <Td> 61 </Td> <Td> 1923 </Td> <Td> Frog Lake (1923) </Td> </Tr> <Tr> <Td> British Columbia sites </Td> <Td> </Td> <Td> 94 </Td> <Td> 1923 </Td> <Td> Rogers Pass (1971) </Td> </Tr> <Tr> <Td> Manitoba sites </Td> <Td> </Td> <Td> 57 </Td> <Td> 1920 </Td> <Td> Exchange District (1996) </Td> </Tr>

Where is canada's most visited national historic site