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| *****SWAAG_ID***** | 323 |
| Date Entered | 11/11/2011 |
| Updated on | 05/12/2011 |
| Recorded by | Tim Laurie |
| Category | Tree Site Record |
| Record Type | Botanical HER |
| Site Access | Public Access Land |
| Location | Birkdale Common. Little Sleddale. Ravine below Upper Falls. |
| Civil Parish | Muker |
| Brit. National Grid | NY 8305 0187 |
| Altitude | 435m |
| Geology | Thin bedded sandstones and shales with visible coal seam (The Tan Hill Coal?. Tufa forming spring at base of cliff. |
| Record Name | MUK107. Birkdale Common. Little Sleddale. Ravine below Upper Falls. Aspen Clones on cliff below Upper Falls. |
| Record Description | Type Site B Acidic vegetation with local enrichment with Butterwort (Pinguicula) at tufa spring. Steep riverside cliff with tufa springs. East facing with Aspen clones, Rowan and Dog rose. See LR Plant List Representative of Site Type B.
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| Geographical area | Upper Swaledale |
| Species | Aspen |
| Scientific Name | Populus tremula |
| Common / Notable Species | Cowberry present |
| Tree: Position / Form / Status | Cloned colony four generations. |
| Additional Notes | This fine colony of aspen was the first record of aspen to be recognised during this survey. These trees are like flames projecting from the the top of the waterfall ravine in autumn, see photos. |
| Image 1 ID | 1193 Click image to enlarge |
| Image 1 Description | Little Sleddale. View over Birkdale Common towards Coldbergh Edge. |  |
| Image 2 ID | 1194 Click image to enlarge |
| Image 2 Description | Little Sleddale Beck. Ravine below Upper falls. |  |
| Image 3 ID | 1195 Click image to enlarge |
| Image 3 Description | Birkdale Common . Flames from Little Sleddale. |  |
| Image 4 ID | 1196 Click image to enlarge |
| Image 4 Description | Little Sleddale. Upper Falls with juniper, rowan and aspen grove in ravine below falls. |  |
| Image 5 ID | 1197 Click image to enlarge |
| Image 5 Description | Aspen grove. |  |
| Image 6 ID | 1198 Click image to enlarge |
| Image 6 Description | View from stream level. |  |
