DescriptionMap of early plant collecting Yellowstone.jpg
English: Rydberg prepared this map from a map Frank Tweedy drew of his plant collecting in Yellowstone NP. He copied Tweedy's routes and then added those of Bessey and himself. He sent it to Aven Nelson, U. Wyoming, in 1899. ( Aven Nelson Papers. Collection 400013. American Heritage Center, U. Wyoming.)
to share – to copy, distribute and transmit the work
to remix – to adapt the work
Under the following conditions:
attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.