Most snakes swim very well.
Yes, as are most snakes. They must often cross rivers in search of prey or mates.
Many Rivers to Cross was created in 1969.
Not really because rivers have different temperatures no all rivers do not have water snakes, but a few do , and not all are poisonous, so if you incounter one you have a 50/50 or50% chance of living.
they passed 34 rivers in the rocky mountains
There are many types of animals that live in rivers. Raccoons, snakes, fish, frogs, platypus, and otters are all animals that stay in the rivers.
they use to cross the river in cannoe or in ferry
No rivers cross the Himalayas, however the range is the header source for the Ganges, Indus, Brahmaputra, Yamuna, Salween, Mekong, Yangtze and Ayeyarwady rivers (and perhaps more smaller ones).
Bridges
A bridge.
The environment with things like rain puddles, rivers, lakes.
The environment with things like rain puddles, rivers, lakes.
They will. There has been experiments proving that somesnakes will prefer to not cross a rope, but a rope around your campsite is by no means ever a snake proof barrier.