To break up the echo chamber a bit and be contrarian, I moved to California from the east. I can say personally that the grass is not figuratively greener on the other side of the Sierras. Yes, taxes and cost of living are high in CA. It's not a secret - most places worth living have the same issues. Wages are also higher in CA than pretty much everywhere else (small exceptions here and there for Barrow, Alaska and the like) to help make up for the difference. Not saying it balances out but it does help alleviate some of it. California also has the largest economy which means there are more jobs. Lots of times people move for a job not realizing that they also need to keep in mind where their next job is going to be located, not just the current one. It's not 1960 anymore, companies don't care about you and you can't expect to work at the same place for decades. Perhaps land surveying has a different dynamic than my industry - but, regardless, something to consider. Moving is a big decision, you don't want to get burned. Also, California is one of the few states where you can live in an urban area and have access to oceans, mountains, lakes, forests, world class national parks, etc. all accessible within a short weekend trip. No vacation days necessary. It's expensive but it's a lifestyle choice.
Utah sounds great on paper until you actually spend time there dealing with weak beer, ridiculous alcohol/bar laws, and a state government that is off the deep end. The smog in SLC and the surrounding valley is pretty bad too - with higher rates of cancer to show for it. Don't get me wrong, Utah is a great place to visit - I've been there probably 20+ times and love it but it's not a place that I'd be able to live forever. My uncle and his family lived there for a number of years and they always felt on the "outside" despite all the things they had in common with the state. Eventually they moved.
All of the above being said, if you and your family are dead set on leaving CA, the people who recommended Grand Junction and Fruita, Colorado know something. Beautiful area, far cheaper than the front range of CO, and close to tons of outdoor recreation. I had an old coworker who lived out there and had a great life as a result. Take a trip, check it out and see for yourself. A few hundred dollars in gas is cheap insurance in case you move somewhere and end up hating it.