Canyon View School is located within the grounds of McKinley Children's Center, which is essentially a group home funded by the state and largely utilized by LA County Dept of Children & Family Services.
The school also specializes in Learning Disabilities, Emotional/Behavioral problems, Trauma, etc.
They are accredited which means that if you earn your HS Diploma here, it will be valid.
GED is an entirely different story.
GED testing sites are regulated by the dept of Education, and not every school can provide you with the GED. Many schools will offer GED test preparation, however not the actual test.
Attached is a link to the list of virtually all the GED testing sites in California.
Hopefully this answer will help anyone else who might be asking a similar question.