What are some good US and Canada summer vacation ideas if I like mountains, lakes, and trees?
There are many great locations in the US and Canada. Here's a list restricted to places with mountains, lakes, and trees:
1. Maine and Vermont
2. Minnesota
3. Yosemite and Lake Tahoe
4. Northern California, Oregon, and Washington
5. British Columbia
6. Lake Louise
Instruction: What are some good US and Canada summer vacation ideas if I like mountains, lakes, and trees?
Context: 
Response: There are many great locations in the US and Canada. Here's a list restricted to places with mountains, lakes, and trees:
1. Maine and Vermont
2. Minnesota
3. Yosemite and Lake Tahoe
4. Northern California, Oregon, and Washington
5. British Columbia
6. Lake Louise