Sierra Club Wilderness Calendar 2020
| Country | USA | 
| Brand | Sierra Club | 
| Manufacturer | Sierra Club | 
| Binding | Calendar | 
| ItemPartNumber | 9781578052240 | 
| Model | 9781578052240 | 
| ReleaseDate | 2019-07-23 | 
| Size | 1 EA | 
| UnitCount | 1 | 
| Format | Engagement Calendar | 
| UPCs | 602593262393 | 
| EANs | 9781578052240 |