E.A. Dick & Snell
Umbonate Slippery Jack
| Province | Rank | Native |
|---|---|---|
| Alberta | S4 | Yes |
| British Columbia | S4 | Yes |
| Island of Newfoundland | SNR | Yes |
| Saskatchewan | SU | Yes |
| Area | Forest | Acres |
|---|---|---|
| Madan | Tongass National Forest | 68,553 |
| North Wrangell | Tongass National Forest | 8,091 |
| Resurrection | Chugach National Forest | 224,615 |
| Rhine | Tongass National Forest | 23,010 |
| Area | Forest | Acres |
|---|---|---|
| Monkey Creek | Six Rivers National Forest | 9,017 |
| Area | Forest | Acres |
|---|---|---|
| Bend Watershed | Deschutes National Forest | 14,829 |
| Maiden Peak | Deschutes National Forest | 26,432 |
| Maiden Peak | Willamette National Forest | 9,627 |
| Tahkenitch | Siuslaw National Forest | 5,799 |
| Tenmile | Siuslaw National Forest | 10,818 |
| Waldo - Fuji | Willamette National Forest | 15,273 |
| Waldo - Lake | Willamette National Forest | 2,993 |
| West - South Bachelor | Deschutes National Forest | 25,994 |
| Woahink | Siuslaw National Forest | 5,309 |
| Area | Forest | Acres |
|---|---|---|
| High Uintas (UT) | Wasatch-Cache National Forest | 102,398 |
| Lakes | Wasatch-Cache National Forest | 121,967 |