Due to the server that a long time friend and supporter of Rolemaster had previously hosted ChannelCities.com on being shut down a few years ago, much of the setting was no longer easily available on the internet. But I started to slowly import it into the World Anvil system for easy web access at:
https://www.worldanvil.com/w/channel-cities-and-world-of-Arnth-adsmalleyPlanning to link the ChannelCities.com url to the World Anvil site, once enough of it is up there (and if there is enough interest from fans/GM's using the setting) to justify the cost of upgrading to the next World Anvil subscription level that allows such linking.
Please take a look at what has been uploaded so far and let me know what you think.
Note that stats for many of the NPC's and additional floor plans/maps for locations and "adventure" details are available to those who register to access such information.
Note however that the previously released "adventures", such as
Dun-Cru and
City of Archendurn details will not be completely provided due to already being commercially released status.