I read this book probably in the mid 1970s, may be from the 1960s or a little earlier. I checked it out from the library in what was then the Children’s section, probably considered young adult today. I have no idea of title or author. The girl’s name may be Gail, not sure, about 15 or 16 years old. She is camping? with her family: mother, father and I think one younger sibling. She becomes separated someway and I believe she may be trying to get to a Ranger’s station or something. Some weird guy is following/stalking her. I don’t remember if he is just after her, a young girl, or if she saw something he did & is trying to stop her from getting help. That’s about it, not a lot to go on, but I remember the book and would like to read again if I can find it! I was probably 12 or 13 when I read it and it was very suspenseful to me at the time, different from Nancy Drew & Trixie Belden books I read.
Maybe Cold River, by Judson? There’s a younger brother, but I think the kids are separated for part of the book.
No, not Cold River, though it sounds like it may be a good one to read! I’m sure the girl was on her own after becoming separated from her parents and sibling; so there was no brother with her as in Cold River. The main focus was she was trying to get away from this guy and get to safety; maybe a Ranger’s station. I also have a vague feeling the author was a woman, but could be wrong.
Could it be The Silver Crown by Robert C. O’Brien?
No, it wasn’t a fantasy/sci-fi book like The Silver Crown. It was a straight forward suspense type, with perhaps a bit of ‘coming of age’ for the girl.
Was it High Trail by Vivian Breck?