From company website:
http://www.entreegold.com/
The Company's Lookout Hill property in Mongolia completely surrounds Ivanhoe Mines' Oyu Tolgoi project. A portion of the Lookout Hill property is subject to a joint venture with Ivanhoe Mines, through its subsidiary Oyu Tolgoi LLC. The joint venture property hosts the Hugo North Extension copper-gold deposit and the Heruga copper-gold-molybdenum deposit.
In North America, the Company is exploring for porphyry-related copper systems in Nevada, Arizona and New Mexico. The primary asset in Nevada is the Ann Mason property, which contains an inferred mineral resource and considerable potential for additional targets. Entrée optioned two contiguous properties to Ann Mason, Blackjack and Roulette, through option agreements with HoneyBadger Exploration Ltd. and Bronco Creek Exploration Inc.
Rio Tinto and Ivanhoe Mines are major shareholders holding approximately 13% and 12% respectively.