And, since people are badmouthing the coast, Corpus, I'll add some opposing thoughts, though I really don't think the area is "beautiful" in the mountainous sense, of course. Hell, the tallest piece of land I know about on the coast is Damon's Mound, a salt dome...ROFL!
But, all the industry is on the north side of Corpus. And, if you think it's bad there, you have NOT been to Texas City, Baytown, or Lake Jackson/Freeport (where I grew up) or, God fobid, Beaumont/Port Arthor. THAT, my friends, is a chemical wasteland! Corpus is only a few refineries and such. I've worked in plants up and down the coast that made stuff they use in chemical warfare and killed people in gas chambers with. Not being able to hire with Texas Parks and Wildlife (Fisheries management) out of college, I made my living as a lab analyst, environmental tech, and pilot plant researcher over the years. Made a lot more money, at least.
But, that's what kept me down here. Port Lavaca provided me with a good living and, yet, a boat ride to Matagorda Island, maybe down to Panther Point fishing or one of the potholes produced there by when the place was a bombing range during WW2, for duck hunting. The island is a state park, now, only accessible by boat and one can hunt ducks there as well as the fishing is fantastic. I sorta am a lifelong adict of the fishing down here, too. But, the island is as remote as one needs to get from all the plants along the coast.
Now, head south out of Corpus on the Laguna Madre. Get down past the mouth of Baffin Bay to the land cut, and you're about as wild as a coast can get! There' NOTHING down there, but the most fantastic duck hunting in all of north America and I'd compare it to coastal Mexico or Argentina. It's just too good to describe, though the logistics keep me from going down there much in my small boat. It's nearly 2 hours by boat, hour and a half, anyway, and it can get mighty rough when a norther blows in. Don't have motor trouble cause cell service is spotty and you ain't gonna easily get help. I prefer to go in groups with more'n one boat, personally. That ara has to be the most remote area on the Texas Gulf Coast. As much as I like my duck hunting, you can see why I love it down there. There are potholes that are arteasian spring fed. There are tidal pools that are high in salinity where there are gobies and killifish specially adapted. Neat thing, you find one of these bakiing in the sun, it's almost like the Great Salt Lake. There's a ring of salt around it, created from the evaporation, of course. But, I learned about all this in school and when I found it, I was enthralled. Probably wouldn't mean much to anyone else, but it's a wonder of nature to me.
Then, there's the fact that the coastal marsh is the tropical rain forest of aquatic environments where species diversity is concened. However, the marsh is FAR, FAR more productive than any rain forest. All life along the coast depends on that productivity. Many species spqwn there. Birds are at their most diverse in North America down here, too, especially around Christmas.
Okay, if all you want is mountains, stick to Colorado. I'm just trying to give reasons why I don't think it's so bad down here. That said, I'd rather live in the hill country and bring my travel trailer down here in the hunting season. ROFL! I'm sick of mequitos and humidity. I'm ready for a change. AND, I do love and appreciate the beauty of the hills/mountains, whatever.