Abstract: Globally, wetland ecosystems provide a wide range of ecosystems services useful for both local and national communities. The upper Orashi wetland of international importance have witnessed severe depletion Edue to anthropogenic activities and poor management practices that are not able to promote justice within the environment South-South region of Nigeria. This study assessed the progress towards Environmental Justice (EJ) in the management of the Upper Orashi forest reserve. The case study research approach was adopted to identify upper Orashi forest reserve and the management system put in place. Spatially disaggregated ecosystem datasets and multi-temporal Landsat imageries were subjected to image analysis and processed using a supervised classification GIS technique to assess changes in ecosystem biomes in the forest between 1988 and 2018. The study made use of the benefit transfer technique for monetary valuation of ecosystems and the value depleted over the 30 year period. The study then assessed progress towards EJ using a suite of indicators for its dimensions, performance scoring and guidance notes. Results indicate that the ecosystems and their services have greatly depleted. Monetarily, $1.815 billion (N635.5 billion) worth of the ecosystem services of the forest has been lost over the period. It was also found out that the management system for Upper Orashi forest did not achieve the standard achievement mark of EJ, indicating a high level of environmental injustice in the study area. This calls for continuous valuation and assessment of the Upper Orashi forest reserve and its ecosystem services using updated environmental indicators tools to progress environmental justice.