Resilience, often defined as the capacity to withstand and recover quickly from adversity while persisting despite obstacles, is a well-researched topic. The recently developed nature-based biopsychosocial resilience (NBRT) framework argues that nature contact can build and maintain biopsychosocial resilience-related resources across four distinct phases: (1) preventive, (2) response, (3) recovery, and (4) growth. However, extant resilience scales do not address or differentiate between all four phases. We therefore developed the Comprehensive Resilience Scale (CRS), building on 589 items from 31 existing resilience scales that were identified in a scoping review. Items were analysed for their suitability, revised, and mapped onto the NBRT framework. New items were developed to cover all four phases. Item contents of the resulting pool of 78 items were then refined through a Delphi survey involving N = 15 experts. To explore the CRS's psychometric properties and optimize its item composition, four online surveys were conducted with English- and German-speaking general population samples (total N ~ 1,600). These surveys assessed the scale's structure, convergent and divergent validity, incremental validity, and test-retest reliability. The current talk will present preliminary findings which suggest that the optimized 30-item CRS has good psychometric properties and captures the four distinct resilience phases as outlined by NBRT. Future studies, including longitudinal designs, are needed to further validate the scale and explore the scale's full potential.