My entry for MotF 46: Novorossiya (New Russia), an extended Russian Alaska and Cascadia.
There are two relatively minor PoDs in this scenario; firstly better Russo-Japanese relations lead to Japanese ports being opened to Russian merchants in the 1820s, this means Russia has more trading opportunities and the US and HBC traders have less of an advantage. Secondly Kuskov's expedition doesn't go as far south as California, instead he founds his settlement (Fort Ross is butterflied into Fort Russ ITTL) roughly where OTL Portland is. Whilst limiting southern expansion this has the effect of bringing the two Russian colonies much closer together.
After coming into conflict with the Hudson Bay company, Russia and the UK settle with the Anglo-Russian Treaty of 1829 - Russia can settle all land West of the continental divide provided they hand over Vancouver Island (known as Vancouverland) and all their colonies in Hawaii to British control. The Russians accept this, and begin heavily colonising, founding new towns such as Saint Andrewsburg and Novomagadan.
Russia also formalises it's boundries to the Californian and Salt Lake watersheds in the south. This is disputed by Spain who, following on from the Spanish-American Treaty that settled the US-Spanish boarder at the 44th parallel, continue to claim along the same line until the Pacific. That also gives rise to what is known as the Jefferson Territory, or more commonly as Jefferson's Oddity. It comprises a small American exclave that exists as part of a strange cross-over of the two treaties, which neither Russia nor Spain can claim; in a similar situation to OTL's Bir Tawil.
Novorossiya got off lightly in the ATL *Crimean War, but the UK seized one of the largest cities and part time capital of Novomagadan. The British (English) General that captured the place remarked "This place was named after a small, dull, damp, cold region at the arse-end of the Empire we took it from. I intend to respect that." He then proceeded to rename it "New Wales". (
Finally, to the present day, and although there has been no Great War yet the people of Novorossiya are not entirly satisfied. Despite being called an "Imperial Dominion" - the same status (generously) granted to Poland and Finland, a good third of the country want more independence from St Petersburg but to keep the Tsar (who is pretty popular all things considered, Novorossiya is liberal compared to much of the Russian Empire) whilst another third want full independence and a US-style republic (mainly foreign immigrants from the US, Canada and Mexico) whislt the final third (mainly the lower classes) are pretty happy with the status quo.