Amur-Okhotsk Two-Tier GeosystemSubmitted by pmd on Wed, 09/08/2010 - 4:13pm Source: http://www.sustain.hokudai.ac.jp/bfig4-thumb.gifImage: Category: River BasinsLevel: RegionalGeographic Area: RussiaImage Type: Pie Chartfield_vote: Select ratingGive Amur-Okhotsk Two-Tier Geosystem 1/5Give Amur-Okhotsk Two-Tier Geosystem 2/5Give Amur-Okhotsk Two-Tier Geosystem 3/5Give Amur-Okhotsk Two-Tier Geosystem 4/5Give Amur-Okhotsk Two-Tier Geosystem 5/5