I just popped over to the EQ2Traders site where I found the following:
Quote:
Items needed to make Tier 1 (level 1-9) items will be found in Tier 1 zones, with no restrictions on who can harvest them.
Tier 2 items (level 10-19) will be found in Tier 2 zones, and will require a 20 skill in the appropriate harvesting ability.
Tier 3 items (level 20-29) will be found in Tier 3 zones, and will require 90 in the proper harvesting skills.
Tier 4 needs 140 in the harvesting skills, and also has some special entry requirements. (To enter the tier 4 zones, you must either a) be level 25 adventurer or above and have completed the proper access quest or b) be level 32 in either your adventurer or tradeskiller class).
Tier 5 requires harvesting skills to be 190 or higher - some require special access, some do not.
So, since T-Steppes is a tier 3 zone, (it is tier 3, right???), you'd be looking at a skill level of 90+.